Toshiba Power Supply TOSVERT VF S11 User Manual

E6581222  
TOSVERT VF-S11  
Communications Function  
Instruction Manual  
Notice  
1. Make sure that this instruction manual is delivered to the end user of the inverter.  
2. Read this manual before first using the communications function, and keep it handy as a  
reference for maintenance and inspections.  
* The contents of this manual are subject to change without notice.  
© TOSHIBA INVERTER CORPORATION 2004  
All rights reserved.  
 
E6581222  
Read first  
Safety precautions  
This manual and labels on the inverter provide very important information that you should bear in  
mind to use the inverter properly and safely, and also to avoid injury to yourself and other people and  
damage to property.  
Read the safety precautions in the instruction manual for your inverter before reading this manual and  
strictly follow the safety instructions given.  
Reference  
Notice  
Insert an electromagnetic contactor between the inverter and the power supply so that Inverter instruction  
the machine can be stopped without fail from an external controller in case of an emer- manual  
gency.  
Do not write the same parameter to the EEPROM more than 10,000 times. The life time Section 4.2  
of EEPROM is approximately 10,000 times.(Some parameters are not limited, please “Commands”  
refer to the “9.Parameter data “)  
When using the TOSHIBA inverter protocol and the data does not need to be records,  
use P command (the data is written only to RAM).  
About the handling of the inverter, please follow the instruction manual of the inverter.  
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Contents  
1.  
2.  
3.  
4.  
General outlines of the communications function........................................................................................................ 3  
Data transmission specifications................................................................................................................................. 4  
Communication protocol ............................................................................................................................................. 5  
TOSHIBA Inverter Protocol......................................................................................................................................... 6  
4.1. Data transmission formats.................................................................................................................................. 8  
4.1.1. Data transmission formats used in ASCII mode ....................................................................................... 8  
4.1.2. Data transmission formats used in binary mode ..................................................................................... 11  
4.1.3. Transmission Format of Block Communication....................................................................................... 14  
4.2. Commands....................................................................................................................................................... 18  
4.3. Transmission errors.......................................................................................................................................... 21  
4.4. Broadcast communications function................................................................................................................. 22  
4.5. Examples of the use of communication commands.......................................................................................... 24  
4.6. Examples of RS232C communication programs.............................................................................................. 25  
MODBUS-RTU protocol............................................................................................................................................ 30  
5.1. MODBUS-RTU transmission format .............................................................................................................. 32  
5.1.1. Read command (03) ............................................................................................................................... 32  
5.1.2. Write command (06) ............................................................................................................................... 33  
5.2. CRC Generation............................................................................................................................................... 34  
5.3. Error codes....................................................................................................................................................... 34  
Inter-drive communication......................................................................................................................................... 35  
6.1. Speed proportional control ............................................................................................................................... 38  
6.2. Transmission format for inter-drive communication.......................................................................................... 39  
Communications parameters.................................................................................................................................... 40  
7.1. Communication baud rate() , Parity bit().................................................................................. 41  
7.2. Inverter number()................................................................................................................................. 41  
7.3. Timer function().................................................................................................................................... 42  
7.4. Setting function of communication waiting time ()................................................................................ 43  
7.5. Free notes() ......................................................................................................................................... 43  
Commands and monitoring from the computer......................................................................................................... 44  
8.1. Communication commands (commands from the computer) ........................................................................... 44  
8.2. Monitoring from the computer........................................................................................................................... 47  
8.3. Control of input/output signals from communication......................................................................................... 53  
8.4. Utilizing panel (LEDs and keys) by communication.......................................................................................... 56  
8.4.1. LED setting by communication................................................................................................................ 56  
8.4.2. Key utilization by communication............................................................................................................ 59  
Parameter data......................................................................................................................................................... 60  
5.  
6.  
7.  
8.  
9.  
Appendix 1 Table of data codes........................................................................................................................................ 63  
Appendix 2 Response time ............................................................................................................................................... 64  
Appendix 3 Compatibility with the communications function of the VF-S9 ........................................................................ 65  
Appendix 4 Troubleshooting.............................................................................................................................................. 66  
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1. General outlines of the communications function  
This manual explains the serial communications interface function provided for the TOSVERT VF-  
S11 series of industrial inverters.  
The TOSVERT VF-S11 series of inverters can be connected to a computer or a controller (hereinaf-  
ter referred to as the computer) for data communications via RS232C converter (RS2001Z) or  
RS485 converter (RS4001Z, RS4002Z, RS4003Z). By writing computer programs, you can monitor  
the operating status of the inverter, control its operation in various ways from the computer, and  
change and store parameter settings on storage devices.  
The communication protocol is preparing the TOSHIBA Inverter Protocol and the MODBUS-RTU  
protocol. Please choose selection of a protocol with a communication protocol selection parameter  
().  
<Computer link>  
By preparing the program (explained later), the following information can be exchanged between the  
computer (host) and the inverter.  
Monitoring function (used to monitor the operating status of the inverter: Output frequency, cur-  
rent, voltage, etc.)  
Command function (used to issue run, stop and other commands to the inverter)  
Parameter function (used to set parameters and read their settings)  
<Inter-drive communication function>  
Master inverter sends the data, that is selected by the parameter, to all the slave inverters on the  
same network. This function allows a network construction in which a simple synchronous or propor-  
tional operation is possible among plural inverters (without the host computer).  
As for data communications codes, the TOSVERT VF-S11 series of inverters support the binary  
(HEX) code, in addition to the JIS (ASCII) code. The communications function is designed on the as-  
sumption that the JIS (ASCII) code is used for communications between the inverter and the person-  
al computer, and the binary (HEX) code for communications between the inverter and the microcom-  
puter built into the controller. A communication number is used to access the desired data item.  
* The smallest unit of information that computers handle is called a “bit (binary digit),” which repre-  
sents the two numbers in the binary system: 1 or 0. A group of 16 bits is referred to as a “word,”  
which is the basic unit of information the VF-S11 series of inverters use for data communications.  
One word can handle data items of 0 to FFFFH in hexadecimal notation (or 0 to 65535 in decimal  
notation).  
BIT15  
BIT8BIT7  
BIT0  
1 bit  
1 word  
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2. Data transmission specifications  
Items  
Specifications  
Transmission scheme  
Half-duplex  
Synchronization scheme  
Start-stop synchronization  
*: Standard  
default setting  
Communication baud rate 1200/2400/4800/9600*/19200 bps (selectable using a parameter) *1  
Communication protocol  
Character transmission  
TOSHIBA Inverter Protocol * / MODBUS-RTU  
<ASCII mode> JIS X 0201 8-bit (ASCII)  
<Binary mode, MODBUS-RTU> Binary codes fixed to 8 bits  
Received by inverter: 1 bit, Sent by inverter: 2 bits *3  
Parity *2: Even */odd/non parity (selectable using a parameter) *1  
checksum(Toshiba inverter protocol), CRC(MODBUS-RTU)  
Stop bit length  
Error detecting scheme  
,
Character  
transmission 11-bit characters *1 (Stop bit=1, with parity)  
format  
Order of bit transmission  
Frame length  
Low-order bits transmitted first  
Variable (to a maximum of 17 bytes)  
*1: Changes to the communication baud rate and to the parity setting do not take effect until the in-  
verter is turned back on or reset.  
*2: JIS-X-0201 (ANSI)-compliant 8-bit codes are used for all messages transmitted in ASCII mode  
and vertical (even) parity bits specified by JIS-X-5001 are added to them. These even parity bits  
can be changed to odd parity bits by changing the parameter setting (a change to the parameter  
setting does not take effect until the inverter has been reset.)  
*3: Here are the default character transmission formats. (Standard default setting)  
Characters received: 11 bits (1 start bit + 8 bits + 1 parity bit + 1 stop bit) ... Standard default setting  
START  
BIT  
PARITY STOP  
BIT BIT  
BIT0  
BIT1  
BIT2  
BIT3  
BIT4  
BIT5  
BIT6  
BIT7  
The inverter receives one stop bit.  
(The computer can be set so as to send 1, 1.5 or 2 stop bits.)  
Characters sent: 12 bits (1 start bit + 8 bits + 1 parity bit + 2 stop bits) ... Standard default setting  
START  
BIT  
PARITY STOP  
BIT BIT  
STOP  
BIT  
BIT0  
BIT1  
BIT2 BIT3  
BIT4  
BIT5  
BIT6  
BIT7  
The inverter sends two stop bits.  
(The computer can be set so as to receive 1, 1.5 or 2 stop bits.)  
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3. Communication protocol  
This communication protocol supports the TOSHIBA Inverter Protocol and part of MODBUS-RTU  
protocol.  
Select the desired protocol from in the following communication protocol selection parameters  
().  
“Parameter Name , Communication Number. 0829”  
Data Range: 0, 1 (Initial value: 0)  
0: TOSHIBA Inverter Protocol (Includes inter-drive communications)  
1: MOUBUS-RTU protocol  
* A parameter change is reflected when the inverter is reset, such as in power off.  
Note : When using the extension panel (RKP001Z) and the parameter writer (PWU001Z), be certain  
to set F829=”0” : TOSHIBA inverter protocol.  
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4. TOSHIBA Inverter Protocol  
Select “TOSHIBA Inverter Protocol” (=) in the communication protocol selection parame-  
ters. “TOSHIBA Inverter Protocol” (=) is set for initial communication protocol selection of  
shipment setting. (See “3. Communication protocol.”)  
Exchange of data between the computer and the inverter  
In communications between the computer and the VF-S11 (hereinafter referred to as the inverter),  
the inverter is always placed in wait states and acts as a slave that operates on a request from the  
computer. A start code is used to automatically identify the mode in which data is transmitted: ASCII  
mode or binary mode.  
A transmission error will result if the transmission format does not match.  
ASCII mode  
(1) In ASCII mode, the start code is “(”  
The inverter rejects all data items entered invalid the “(” If two or more “(” are entered, the “(” en-  
tered last will be valid and all “(“ entered before will be ignored. If the “(” is not recognized becau-  
se of a format error or for any other reason, no error code will be returned since the data is not  
recognized at all. In such cases, the inverter regards the data received as a transmission error,  
rejects it and goes back into a start code wait state.  
(2) When an inverter number is added behind the “(” communications will take place only in case of  
broadcast communication or if the number matches up with that assigned to the inverters. If not,  
the inverter will go back into a start code wait state.  
(3) The inverter stops receiving data on receipt of the CR (carriage return) code inserted in the des-  
ignated position.  
If the size of the data transmitted exceeds the maximum allowable size (17 bytes) or if the CR  
code cannot be found in the designated position within 0.5 seconds, the inverter will regard the  
data received as a transmission error and go back into a start code wait state.  
(4) If no communications take place within the time specified using the timer function, the computer  
will regard it as a communication error and trip the inverter. The timer setting is cleared when the  
timer is turned on or initialized. For more details, see Section 7.3, “Timer function.”  
(5) On executing the command received, the inverter returns data to the computer. For the response  
time, see Appendix 2, “Response time.”  
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Binary mode  
(1) In binary mode, the start code is “2FH(/).”  
The inverter rejects all data items entered before the “2FH(/).”  
If two or more “2FH(/)” are entered, the “2FH(/)” entered last will be judged valid and all “2FH(/)”  
entered before will be ignored.  
If the “2FH(/)” is not recognized because of a format error or for any other reason, no error code  
will be returned since the data is not recognized at all. In such cases, the inverter regards the  
data received as a transmission error, rejects it and goes back into a start code wait state.  
(2) If an inverter number is added behind the “2FH(/),” communications will take place only in case of  
broadcast communication or if the number matches up with that assigned to the inverters. If not,  
the inverter will go back into a start code wait state.  
(3) The inverter stops receiving data on receipt of a command and the number of bytes of data  
specified by the command.  
If no command is found in the data received or if the specified number of bytes of data cannot be  
received within about 0.5 seconds, the inverter will regard the data received as a transmission er-  
ror and go back into a start code wait state.  
(4) If no communications take place within the time specified using the timer function, the computer  
will assume that a communication error has occurred and trip the inverter. The timer function is  
disabled when the inverter is turned on or initialized. For details, see Section 7.3, “Timer func-  
tion.”  
(5) On executing the command received, the inverter returns data to the computer. For the response  
time, see Appendix 2, “Response time.”  
Note  
Communication is not possible for about one second after the power is supplied to the inverter until  
the initial setting is completed. If the control power is shut down due to an instantaneous voltage drop,  
communication is temporarily interrupted.  
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4.1. Data transmission formats  
Note: The term “trip status” used in this manual includes retry waiting status and trip retention status.  
4.1.1. Data transmission formats used in ASCII mode  
A communication number is used to specify a data item, all data is written in hexadecimal, and JIS-  
X-0201 (ASCII (ANSI))-compliant transmission characters are used.  
Computer VF-S11  
Omissible in one-to-one communications  
For the W and P commands only  
Omissible  
")"  
"("  
INV-NO  
2 bytes  
CMD  
Communication No.  
4 bytes  
DATA  
"&"  
SUM  
2 bytes  
CR  
(28H)  
1 byte  
0 to 4 bytes  
(26H)  
(29H) (0DH)  
Checksum area  
Omissible  
1. “(“ (1 byte)  
: Start code in ASCII mode  
2. INV-NO (2 bytes) : Inverter number (Omissible in one-to-one communications) ... 00 (30H, 30H) to 99 (39H,  
39h), *(2AH)  
The command is executed only when the inverter number matches up with that specified  
using a parameter.  
(When * is specified in broadcast communications, the inverter number is assumed to  
match if all numbers except * match. When * is specified instead of each digit (two-digit  
number), all inverters connected are assumed to match.)  
If the inverter number does not match or if the inverter number is of one digit, the data will be  
judged invalid and no data will be returned.  
3. CMD (1 byte)  
4. Communication No.(4 bytes)  
: Communication number (See 11, “Parameter data.”)  
5. Data (0 to 4 bytes): Write data (valid for the W and P commands only)  
: Command (For details, see the table below.)  
6. “&” (1 byte)  
: Checksum discrimination code (omissible. When omitting this code, you also need to omit  
the checksum.)  
7. Sum (2 bytes)  
: Checksum (omissible)  
Add the ASCII-coded value of the last two digits (4 bits/digit) of the sum of a series of bits  
(ASCII codes) from the start code to the checksum discrimination code.  
Ex.: (R0000&??) CR  
28H+52H+30H+30H+30H+30H+26H=160H  
The last two digits represent the checksum. = 60  
When omitting the checksum, you also need to omit the checksum discrimination code.  
8. “)” (1 byte)  
9. CR (1 byte)  
: Stop code (omissible)  
: Carriage return code  
Details of commands and data  
CMD (1 byte)  
Write data (0 to 4 bytes) Hexadecimal number  
No data  
Write data (0 to FFFF)  
R (52H): RAM read command  
W (57H): RAM/EEPROM write command  
P (50H) RAM write command  
Write data (0 to FFFF)  
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VF-S11 computer  
At time of broadcast communication, returning of data is not executed, except for the inverters to be  
returned, when the inverter number is not matched, and the inverter number has only one character.  
This is because there will be a risk of that the returned data may be deformed.  
Data returned when data is processed normally (ASCII mode)  
Omissible  
Omissible  
")" CR  
"("  
(28H)  
INV-NO  
2 bytes  
CMD  
1 byte  
Communication No.  
4 bytes  
DATA  
0 to 4 bytes  
"&"  
(26H)  
SUM  
2 bytes  
(29H) (0DH)  
Checksum area  
Omissible  
1. “(“ (1 byte)  
: Start code in ASCII mode  
2. INV-NO (2 bytes) : Inverter number (omitted if it is not found in the data received) ... 00 (30H, 30H) to 99 (39H,  
39H)  
If the inverter number matches up with that specified using a parameter, data will be return-  
ed to the computer. In broadcast communications, only the destination inverter (with a num-  
ber matching up with the smallest effective number) returns data to the computer.  
In broadcast communications, no data is returned from any inverters except the inverter  
bearing a number that matches up with the smallest effective number.  
Ex.: (*2R0000) CR -> (02R00000000) CR)  
Data is returned from the inverter with the number 2 only, but no data is returned from  
inverters with the number 12, 22 ....  
3. CMD (1 byte)  
: Command ... The command is also used for a check when an inverter is tripped.  
Under normal conditions... The uppercase letter R, W or P is returned, depending on the  
command received: R, W or P command.  
When an inverter is tripped... The lowercase letter r, w or p is returned, depending on the  
command received: R, W or P command.  
(The command received is returned with 20H added to it.)  
4. Communication No.(4 bytes) :  
The communication number received is returned.  
5. Data (0 to 4 bytes): Data ... The data read in is returned for the R command, while the data received is returned  
for the W and P commands. If the data received is composed of less than 4 digits, it will be  
converted into 4-digit data and returned.  
Ex.: (W123412) CR (W12340012) CR)  
6. “&” (1 byte)  
: Checksum discrimination code (omitted if it is not found in the data received)  
7. Sum (2 bytes)  
: Checksum ... Omitted if no checksum discrimination code is found in the data received.  
ASCII-coded value of the last two digits (4 bits/digit) of the sum of a series of bits (ASCII  
codes) from the start code to the checksum discrimination code.  
8. “)” (1 byte)  
9. CR (1 byte)  
: Stop code (omitted if it is not found in the data received)  
: Carriage return code  
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Data returned when data is not processed normally (ASCII mode)  
In case an error occurs, communication error command (4EH(N) or 6EH(n)) and the error type num-  
ber is returned to the computer in addition to the checksum. At time of broadcast communication of  
the binary mode, returning of data is not executed except for the inverter to be returned (inverter  
number 00H) and when the inverter number is not matched. This is because there will be a risk that  
the returned data may be deformed.  
Omissible  
Omissible  
“(“  
(28H)  
INV-NO  
2 bytes  
“N” or “n”  
(4EH) (6EH)  
DATA  
4 bytes  
"&"  
(26H)  
SUM  
2 bytes  
")" CR  
(29H) (0DH)  
Checksum area  
Omissible  
“(“ (1 byte)  
: Start code in ASCII mode  
1) N or n (1 byte)  
:Communication error command ... This is also used for the checking of inverter trip.  
“4EH(N)” for the normal communication and “6EH(n)” during the inverter trip.  
Data (4 bytes)  
: Error code (0000~0004)  
0000 ... Impossible to execute (Although communication is established normally, the com-  
mand cannot be executed because it is to write data into a parameter whose set-  
ting cannot be changed during operation (e.g., maximum frequency) or the  
EEPROM is faulty.)  
0001 ... Data error (The data is outside the specified range or it is composed of too many  
digits.)  
0002 ... Communication number error (There is no communication number that matches.)  
0003 ... Command error (There is no command that matches.)  
0004 ... Checksum error (The checksum result differs.)  
“)” (1 byte)  
: Stop code ... This code is omitted if it is not found in the data received.  
Examples:  
(N0000&5C)CR... Impossible to execute (e.g., a change of maximum frequency data during opera-  
tion)  
(N0001&5D)CR... Data error (Data is outside the specified range.)  
(N0002&5E)CR... No communication number (There is no communication number that matches.)  
(N0003&5F)CR... There is no command that matches. (Commands other than the R, W and P com-  
mands)  
(Ex.: L, S, G, a, b, m, r, t, w ...)  
(N0004&60)CR... Checksum error (The checksum result differs.)  
No data returned ... Format error or invalid inverter number  
(Ex.: A code other than the stop code (“)”) (Ex.: ”}”) is entered in the stop code  
position or the CR code was not found within 0.5 sec.)  
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4.1.2. Data transmission formats used in binary mode  
A communication number is used to specify a data item, data is written in hexadecimal form, and  
data in transmission characters are represented by binary codes (HEX codes).  
Computer VF-S11 (binary mode)  
Omissible in one-to-one communications  
No data for the 52H (R) command  
“/”  
(2FH)  
INV-NO  
1 byte  
CMD  
1 byte  
Communication No.  
2 bytes  
DATA  
2 bytes  
SUM  
1 byte  
Checksum area  
Not omissible  
1. 2FH (“/”) (1 byte) : Start code in binary mode  
2. INV-NO (2 bytes) : Inverter number (Omissible in one-to-one communications) ... 00H to 3FH ,FFH  
In case the inverter number is other than FFH (broadcast communication), command is ex-  
ecuted only when the inverter number coincides with the one designated with the panel. If  
the inverter number is not matched, it will be judged invalid and the data is not returned.  
3. CMD (1 byte)  
: Command (For details, see the table below.)  
52H (R) command: The size of the data following CMD is fixed to 3 bytes. (Communication  
number: 2 bytes, checksum: 1 byte)  
57H (W), 50H (P) and 47H (G) commands: The size of the data following CMD is fixed to 5  
bytes.  
(Communication number: 2 bytes, data: 2 byte, checksum: 1 byte)  
Any command other than the above is rejected and no error code is returned.  
4. Communication No.(2 bytes)  
: Communication number (See 11, “Parameter data.”)  
5. Data (2 bytes)  
: 0000H to FFFFH  
57H (W) and 50H (P) commands: Write data (An area check is performed.)  
47H (G) command: Dummy data (e.g., 0000) is needed.  
52H (R) command: Any data is judged invalid. (No data should be added.)  
6. Sum (2 bytes)  
: Checksum (not omissible) 00H to FFH  
Value of the last two digits (1 byte) of the sum of a series of bits (codes) from the start code  
of the data returned to the data (or to the communication number for the 52H (R) command)  
Ex.: 2F 52 00 ?? ... 2FH+52H+00H+00H=81H  
The last two digits (??) represent the checksum. = 81  
Details of commands and data  
CMD (1 byte)  
Write data (2 bytes) Hexadecimal number  
No data  
52H (R): RAM read command  
57H (W): RAM/EEPROM write command  
50H (P): RAM write command  
47H (G): RAM read command (for two-wire networks)  
Write data (0000H to FFFFH)  
Write data (0000H to FFFFH)  
Dummy data (0000H to FFFFH)  
11  
 
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VF-S11 computer (binary mode)  
At time of broadcast communication of the binary mode, returning of data is not executed except for  
the inverter to be returned (inverter number 00H) and when the inverter number is not matched. This  
is because there will be a risk that the returned data may be deformed.  
Data returned when data is processed normally (Binary mode)  
Omissible  
“/”  
(2FH)  
INV-NO  
1 byte  
CMD  
1 byte  
Communication No.  
2 bytes  
DATA  
2 bytes  
SUM  
1 byte  
Checksum area  
Not omissible  
1. 2FH (“/“) (1 byte) : Start code in binary mode  
2. INV-NO (2 bytes) : Inverter number... 00H to 3FH (The inverter number is omitted if it is not found in the data  
received.)  
If the inverter number matches up with that specified from the operation panel, data will be  
returned from the inverter. If the inverter number does not match, the data will be invalid and  
no data will be returned.  
3. CMD (1 byte)  
: Command...The command is also used for a check when the inverter is tripped.  
Under normal conditions...52H (R), 47H (G), 57H (W) or 50H (P) is returned, depending on  
the command received.  
When the inverter is tripped...The lowercase letter 72H (r), 67H (g), 77H (w) or 70H (p) is  
returned with 20H added to it, depending on the command received.  
4. Communication No. (4 bytes)  
: The communication number received is returned.  
5. Data (2 bytes)  
: Data ... 0000H to FFFFFH  
The data read is returned for the 52H (R) and 47H (G) commands, while the data written is  
returned for the 57H (W) and 50H (P) commands.  
6. Sum (1 bytes)  
: Checksum (not omissible) 00H to FFH  
Value of the last two digits (1 byte) of the sum of a series of bits (codes) from the start code  
to the data.  
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2) Error Processing (Binary mode)  
In case an error occurs, communication error command (4EH(N) or 6EH(n)) and the error type num-  
ber is returned to the computer in addition to the checksum. At time of broadcast communication of  
the binary mode, returning of data is not executed except for the inverter to be returned (inverter  
number 00H) and when the inverter number is not matched. This is because there will be a risk that  
the returned data may be deformed.  
Omissible  
(1 byte)  
(1 byte)  
“/”  
(2FH)  
INV-NO  
1 byte  
N or n  
(4EH)(6EH)  
DATA  
SUM  
2 bytes  
1 byte  
Checksum area  
Not omissible  
N or n (1 byte)  
Data (2 bytes)  
: Communication error command ... This command is also used for a check when the inverter  
is tripped.  
4EH (N)” is returned under normal conditions, while “6EH (n)” is returned when the in-  
verter is tripped.  
: Error code (0000~0004)  
0000 ... Impossible to execute (Although communication is established normally, the com-  
mand cannot be executed because it is to write data into a parameter whose setting  
cannot be changed during operation (e.g., maximum frequency) or the EEPROM is  
faulty.)  
0001 ... Data error (The data is outside the specified range or it is composed of too many  
digits.)  
0002 ... Communication number error (There is no communication number that matches.)  
0004 ... Checksum error (The checksum result differs.)  
No code returned ...Command error, format error (failure to receive the specified number of  
bytes within 0.5 seconds, or an parity, overrun or framing error) or the  
inverter number does not match or an inverter in broadcast communica-  
tion in the binary mode except for the inverter for data returning (the in-  
verter numbered 00H).  
Examples:  
2FH, 4EH, 00H, 00H, 7DH ... Impossible to execute (e.g., a change of maximum frequency data  
during operation)  
2FH, 4EH, 00H, 01H, 7EH ... Data setting error (The data specified falls outside the specified  
range.)  
2FH, 4EH, 00H, 02H, 7FH ... No communication number (There is no communication number that  
matches.)  
2FH, 4EH, 00H, 04H, 81H ... Checksum error (The checksum result differs.)  
13  
 
E6581222  
4.1.3. Transmission Format of Block Communication  
What is block communication?  
Data can be written in and read from several data groups set in one communication by setting the ty-  
pe of data desired for communication in the block communication parameters (, ,  
 to ) in advance. Block communications can save the communication time.  
Data is transmitted hexadecimal using the binary (HEX) code transmission characters. “Computer  
inverter” is for writing only, while “Inverter computer” for reply is for reading only.  
Computer VF-S11 (Block Communications)  
Number of writing data groups x 2 bytes  
Omissible  
INV-NO  
Num-  
ber of  
write  
Num-  
ber of  
read  
Start  
Code  
”  
CMD  
“X”  
Write  
data1  
High  
Write  
data1  
Low  
Write  
data2  
High  
Write  
data2  
Low  
SUM  
data  
data  
groups  
groups  
Checksum Area  
1. 2FH(“/”) (1 byte) : Start code of binary mode  
2. INV-NO (1 byte) : Inverter number. (Can be omitted in 1:1 communications): 00H to 3FH, FFH  
Executed only when the inverter number matches the inverter number. Set on the panel, ex-  
cept in FFH (broadcast communication).  
Communication data will be invalidated and data will not be returned either if the inverter  
number. Does not match.  
3. CMD (1 byte)  
: ‘X’ (Block communication command)  
4. Number of write data groups (1 byte)  
: Specify the number of data groups to be written (00H to 02H).  
If specified outside of the range, data will be treated as a format error and data will not be re-  
turned.  
5. Number of read data groups (1 byte)  
: Specify the number of data groups to be read (00H to 05H).  
If specified outside of the range, data will be returned as “Number of read data groups = 0”  
when returned by the inverter.  
6. Write data1 (2 bytes)  
: Needed when the number of write data groups is larger than 1.  
Data to be written to the specified parameter selected by   
Dummy data is needed if the number of write data groups is larger than 1 even though(none)  
is selected for   
7. Write data2 (2 bytes)  
: Needed when the number of write data groups is 2.  
Data to be written to the specified parameter selected by   
Dummy data is needed if the number of write data groups is 2 even though(none) is selected  
for   
8. SUM (1 byte)  
: Checksum (Cannot be omitted) 00H to FFH  
Lower two digits (1 byte) of total sum from start code (SUM value not included)  
14  
 
E6581222  
Block Write 1, 2  
Select data, which is desired to be written in block communications, in Block Communication Write  
Data 1 and 2 Parameters (, ). This parameter becomes effective when the system  
is reset, such as when power is turned off. When the setting is completed, turn off and then on the  
power.  
No. Block Write Data  
For data details, see:  
0
1
2
3
No selection  
 -  
Command 1 (FA00)  
“8.1 Command by communication”  
“8.1 Command by communication”  
“8.1 Command by communication”  
“8.3 Control of input/put signals from com-  
munication”  
Command 2 (FA20)  
Frequency Command Value (FA01)  
4
5
Terminal Board Output Data (FA50)  
Communication Analog Output (FA51)  
“8.3 Control of input/put signals from com-  
munication”  
* When “No selection” is specified in the parameters, no data will be written even though write data is  
specified.  
Block Read 1 to 5  
Select read data, which is desired to be read in block communications, in Block Communication  
Read Data 1 and 5 Parameters (to). This parameter becomes effective when  
the system is reset, such as when power is turned off. When the setting is completed, turn off and  
then on the power.  
No. Block Read Data  
For data details, see:  
0
1
2
3
4
5
6
No selection  
 -  
Status 1 (FD01)  
“8.2 Monitoring from communication”  
“8.2 Monitoring from communication”  
“9. Parameter data”  
Output Frequency (FD00)  
Output Current (FE03)  
Output Voltage (FE05)  
Alarm Information (FC91)  
PID Feedback Value (FE22)  
“9. Parameter data”  
“8.2 Monitoring from communication”  
“9. Parameter data”  
“8.3 Control of input/put signals from  
communication”  
7
8
Input Terminal Board Monitoring (FD06)  
Output Terminal Board Monitoring (FD07)  
Analog Monitoring VIA (FE35)  
“8.3 Control of input/put signals from  
communication”  
“8.3 Control of input/put signals from  
communication”  
9
“8.3 Control of input/put signals from  
communication”  
10  
Analog Monitoring VIB (FE36)  
* Output current (FE03), output voltage (FE05) and PID feedback value (FE22) will become hold data  
during a trip. Otherwise, real-time data appears.  
* “0000” will be returned as dummy data, if “0 (No selection)” is selected for the parameter and “read”  
is specified.  
15  
 
E6581222  
VF-S11 Computer  
At time of broadcast communication of the binary mode, returning of data is not executed except for  
the inverter to be returned (inverter number 00H) and when the inverter number is not matched. This  
is because there will be a risk that the returned data may be deformed.  
1) Normal processing  
Omissible  
Number of read data groups x 2 bytes  
Start  
Code  
INV CMD  
Write Read  
Read  
Status data1 data1 data2 data2 data3 data3 data4 data4 data5 data5  
high low high low high low high low high low  
Read  
Read  
Read  
Read  
Read  
Read  
Read  
Read SUM  
Number  
of Read  
Data  
No.  
“Y”  
”  
Groups  
Checksum area  
1. 2FH “/” (1 byte)  
2. INV-NO (1Byte)  
Start code in binary mode  
Inverter number・・・00H to 3FH  
If the inverter number matches up with that specified from the operation panel, data will  
be returned from the inverter. If the inverter number does not match, the data will be  
judged invalid and no data will be returned.  
Communication data will be invalidated and data will not be returned either if the in-  
verter number does not match. (Inverter number is considered matched if it is omitted  
during reception)  
3. CMD(1Byte)  
:‘Y’ (Block communication command [monitoring])  
Lowercase letter ‘y’ during an inverter trip, including standing by for retrying and during  
a trip.  
4. Number of read data groups (1 byte)  
: Return the number of data groups to be read (00H to 05H).  
5. Write status (1 byte) : Return 00H to 03H.  
* Failing to write in the specified parameter in the number of write data groups, set “1” in  
the corresponding bit for the parameter failed to write. (See below.)  
Bit Position  
Data Type  
7
6
5
4
3
2
1
0
   
6. Read data1 - 5 (2 bytes)  
: Return according to the number of read data groups. “0000H” is returned as dummy  
data if “0” is selected as a parameter.  
Read data1: Data selected by . Read data2: Data selected by .  
Read data3: Data selected by . Read data4: Data selected by .  
Read data5: Data selected by .  
7.SUM(1Byte)  
: Checksum (Cannot be omitted) 00H to FFH  
Lower two digits (1 byte) of total sum from start code of return data to read data.  
Example  
(When set as follows:  = (Command 1),  = (frequency command value),  
 = (status), = (output frequency),  = (output current),  = (output voltage) and  
 = (alarm)  
Computer Inverter2F 58 02 05 C4 00 17 70 D9  
Inverter Computer2F 59 05 03 00 00 00 00 00 00 00 00 00 00 90 (When parameter is not set)  
Inverter Computer2F 59 05 00 40 00 00 00 00 00 00 00 00 00 CD CD (When parameter is set)  
Inverter Computer2F 59 05 00 64 00 17 70 1A 8A 24 FD 00 00 3D (During operation at 60Hz)  
16  
 
E6581222  
2) Error Processing (Binary mode)  
In case an error occurs, communication error command (4EH(N) or 6EH(n)) and the error type num-  
ber is returned to the computer in addition to the checksum. At time of broadcast communication of  
the binary mode, returning of data is not executed except for the inverter to be returned (inverter  
number 00H) and when the inverter number is not matched. This is because there will be a risk that  
the returned data may be deformed.  
Omissible  
(1 Byte)  
(1 Byte)  
”  
INV-NO  
1 Byte  
“N” or “n”  
DATA  
SUM  
(2FH)  
(4EH)(6EH)  
2 Bytes  
1 Byte  
Checksum Area  
Not omissible  
“N” or “n” (1 byte) : Communication error command. Also for check during an inverter trip (includes standing by  
for retrying and trip holding). “4EH (N)” when normal, “6EH (n)” during an inverter trip.  
DATA (2 bytes)  
: Error code (0004)  
0004  
: Checksum error (The checksum does not match)  
No return : Command error, format error (specified number of bytes is not received in 1sec,  
or parity error, overrun error or framing error), inverter number mismatch, and  
inverter number other than 00H in broadcast communication.  
Examples  
Computer Inverter : 2F 58 02 05 C4 00 17 70 D8  
Inverter Computer : 2F 4E 00 04 81 ... Checksum error  
17  
 
E6581222  
4.2. Commands  
Here are the communication commands available.  
Command  
R command Reads the data with the specified communication number.  
Function  
W command Writes the data with the specified communication number. (RAM and EEPROM).  
P command Writes the data with the specified communication number. (RAM).  
Reads the data with the specified communication number. (For binary mode only.  
Dummy data is required for this command.)  
G command  
X command Block communication (Computer -> Inverter)  
Y command Block communication (Inverter -> Computer)  
W (57H) (RAM*1 /EEPROM*2 write)  
This command is used to write new data into the parameter specified using it communication number.  
It writes data into the RAM and EEPROM. For parameters whose settings cannot be stored in the  
EEPROM (e.g., parameter with the communication number FA00), the W (57H) command writes  
data into the RAM only. It cannot be used to write data into read-only parameters (e.g., parameter  
with the communication number FD?? or FE??).  
Each time an attempt to write data is made, the inverter checks if the data falls within the specified  
range. If this check reveals that the data falls outside the specified range, the inverter will reject it and  
return an error code.  
- Ex.: Setting the deceleration time (communication number: 0010) to 10 sec.  
CR: Carriage return  
<ASCII mode>  
Computer Inverter  
(W00100064)CR  
Inverter Computer  
(W00100064)CR  
…(10÷0.1=100=0064H)  
<Binary mode>  
Computer Inverter  
2F 57 00 10 00 64 FA  
Inverter Computer  
2F 57 00 10 00 64 FA  
…(10÷0.1=100=0064H)  
Notice  
Do not write the same parameter to the EEPROM more than 10,000 times. The life time of EEPROM is  
approximately 10,000 times.(Some parameters are not limited, please refer to the “9.Parameter data “)  
The lifetime of EEPROM is approximately 10,000 times. When using the TOSHIBA inverter protocol and  
the data does not need to be records, use P command (the data is written only to RAM).  
Explanation of terms  
*1: The RAM is used to temporarily store inverter operation data. Data stored in the RAM is cleared  
when the inverter is turned off, and data stored in the EEPROM is copied to the RAM when the  
inverter is turned back on.  
*2: The EEPROM is used to store inverter operation parameter settings, and so on. Data stored in  
the EEPROM is retained even after the power is turned off, and it is copied to the RAM when the  
inverter is turned on or reset.  
18  
 
E6581222  
P (50H) (RAM*1 write)  
This command is used to rewrite data into the parameter specified using a communication number. It  
writes data into the RAM only. It cannot be used to write data into any read-only parameters. Each  
time an attempt to write data is made the inverter checks whether the data falls within the specified  
range. If this check reveals that the data falls outside the range, the inverter will reject it and return an  
error code.  
- Ex.: Entering the emergency stop command (communication number: FA00) from the computer  
<ASCII mode>  
Computer Inverter  
Inverter Computer  
(PFA009000)CR  
(PFA009000)CR  
Command priority, emergency stop  
command  
<Binary mode>  
Computer Inverter  
2F 50 FA 00 90 00 09  
Inverter Computer  
2F 50 FA 00 90 00 09  
R (52H) (Data read)  
This command is used to read the setting of the parameter specified using a communication number.  
(When multiple inverters are operated in binary mode via RS485 converter connected to a two-wire  
line, the execution of the R command could result in a communication error. To avoid this, use the G  
command in binary mode when inverters are connected to a two-wire line.)  
- Ex.: Monitoring the electric current (communication number: FE03)  
<ASCII mode>  
Computer Inverter  
(RFE03)CR  
Inverter Computer  
(RFE03077B)CR  
…Current: 1915 / 100 = 19.15%  
<Binary mode>  
Computer Inverter  
2F 52 FE 03 82  
Inverter Computer  
2F 52 FE 03 07 7B 04  
Notice  
When multiple inverters are operated in binary mode via RS485 converter connected to a two-wire line, use  
the G command to read data.  
G (47H) (Data read)  
This command is used to read the parameter data specified using a communication number.  
To send this command to an inverter with two-wire type RS485 network, 2bytes of dummy data are  
needed. This command is available only in binary mode.  
- Ex.: Monitoring the electric current (communication number: FE03)  
Computer Inverter  
Inverter Computer  
2F 47 FE 03 00 00 77  
2F 47 FE 03 07 7B F9  
* In this example, the data 00H sent from the computer to the inverter is dummy data.  
19  
 
E6581222  
S (53 H)/ s (73 H) Inter-drive communication command(RAM*1 Write)  
This command is for using frequency command values in % (1 = 0.01%), instead of in Hz, and is for  
synchronous-proportional operation in inter-drive communication. This command can also be used  
in ordinary computer link communications.  
When writing in the frequency command (FA01) is enabled and a parameter other than it is specified,  
a communication number error will result. Data is written in the RAMs only and at this time the data  
check such as an upper limit and lower limit checking is not carried out.  
Data is not returned from the inverters while this command is used. This command can be used  
only in the binary mode.  
For the details of the format, see “6.2 Transmission format for inter-drive communication.”  
Use (%) as the unit for frequency command values specified by the command S, instead of (Hz), and  
the receiving side converts units for frequency values to “Hz” in accordance with the point conversion  
parameter. The conversion formula is shown below.  
Frequency command value (Hz) =  
Point 2 frequency (F813) Point 1 frequency (F812)  
x (Frequency command value (%)  
Point 2 (F814) Point 1 (F811)  
Point 1 (F811)) + Point 1 frequency (F812)  
When Command “s” (lowercase letter) is received, the slave side judges that the master side is  
tripped and operates in accordance with the inter-drive communication parameter ().  
For detail, see "7. Communication parameters ".  
- Examples: 50% frequency command  
(If maximum frequency = Frequency for operation at 80Hz = 40Hz: 50% = 5000d = 1388H)  
<Binary mode>  
Master inverter Slave inverter  
Slave inverter Master inverter  
2F 53 FA 01 13 88 18  
No return  
X(58H)/Y (59H) (Block Communication Command)  
Data selected in the block communication write parameters (,) is written in the  
RAMs. When returning data, data selected in block communication read parameters ( to  
) is read and is returned.  
- Examples: 60Hz operation command from communication and monitoring (Monitoring when al-  
ready operating at 60Hz)  
(Parameter Setting:  = , = ,  = ,  = ,  = ,  =  
, = )  
<Binary mode>  
Computer Inverter  
Inverter Computer  
2F 58 02 05 C4 00 17 70 D9  
2F 59 05 00 64 00 17 70 1A 8A 24 FD 00 00 3D  
20  
 
E6581222  
4.3. Transmission errors  
Table of error codes  
Error name  
Description  
Error code  
Impossible to exe- The command is impossible to execute, though communication was  
0000  
cute  
established normally.  
1 Writing data into a parameter whose setting cannot be changed  
during operation (e.g., maximum frequency) *1  
2 Writing data into a parameter while “” is in progress  
3 The maintenance command is issued. *2  
Invalid data is specified.  
Data error  
0001  
0002  
Communication  
number error  
There is no communication number that matches.  
Ex.: In the case of (R0)))) CR, 0))) is recognized as a communication  
number.  
Command error  
The command specified does not exist.  
0003 (ASCII mode)  
No code returned (Binary  
mode)  
Checksum error  
Format error  
The Checksum does not match.  
0004  
The data transmission format does not match.  
1 One-digit inverter number (ASCII mode)  
2 The CR code is found in the designated position. (ASCII mode)  
Ex.:Communication number of 4 digit or less. In the case of (R11)  
CR, 11) CR is recognized as a communication number and  
the CR code is not recognized, with the result that a format er-  
ror occurs.  
No code returned  
3 A code other then the stop code (“)”) is entered in the stop code  
position.  
4 The specified number of bytes of data are not received within 0.5  
sec.  
Receiving error  
A parity, overrun or framing error has occurred. *3  
No code returned  
*1: For parameters whose settings cannot changed during operation, see 11.1, Table of parame-  
ters.”  
*2: In binary mode, no data will be returned if a command error occurs. When the maintenance  
command (M) is issued, an impossible-to-execute error occurs and an error code is returned.  
*3: Parity error  
: The parity does not match.  
Overrun error : A new data item is entered while the data is being read.  
Framing error : The stop bit is placed in the wrong position.  
* For the errors with “no code returned” in the above table, no error code is returned to avoid a data  
crash.  
If no response is received, the computer side recognizes that a communication error has occurred.  
Retry after a lapse of some time.  
* If the inverter number does not match, no processing will be carried out and no data will be re-  
turned, tough it is not regarded as an error.  
21  
 
E6581222  
4.4. Broadcast communications function  
Broadcast communication function can transmit the command (write the data) to multiple inverters by  
one communication. Only the write (W, P) command is valid and the read (R, G) command is invalid.  
The inverters subject to the broadcast communication are the same to the independent communica-  
tion; 0 to 99 (00H - 63H) in the ASCII mode, and 0 to 63 (00H - 3FH) in the binary mode.  
To avoid data deforming, the inverters to return data will be limited. A RS485 communication con-  
verter unit (RS4001Z, RS4002Z or RS4003Z) will be needed to control multiple inverters on the net-  
work.  
“Overall” broadcast communications (ASCII mode / Binary mode)  
- ASCII Mode  
If you enter two asterisks (**) in the inverter number position of the data transmission format, the  
computer will send the data simultaneously to all inverters (with an inverter number between 0 and  
99 (00 to 63H)) on the network.  
- Binary Mode  
To put "FF" to the specified place of the inverter number in the communication format validates the  
broadcast communication and the command is transmitted to all the applicable inverters in the net-  
work (inverter numbers from 0 to 63 (00 to 3FH)).  
<Inverter that returns data to the computer>  
Data is returned from the inverter bearing the inverter number 00 only.  
If you do not want inverters to return data, do not assign the number 00 to any inverter on the net-  
work.  
“Group” broadcast communications (ASCII mode only)  
If you put “*?” In the inverter number position of the data transmission format, data will be sent  
simultaneously to all inverters bearing a number whose digit in the one’s place in decimal notation  
is”?”  
If you put ”?*” In the inverter number position of the data transmission format, the data will be sent  
simultaneously to all inverters bearing a number whose digit in the ten’s place in decimal notation  
is”?”.  
(“?”: Any number between 0 and 9.)  
<Inverter that returns data to the computer>  
Data is returned only from the inverter bearing the smallest number in the same group of inverters  
(i.e., inverter whose number in the position of ”*” is 0).  
If you do not want inverters to return data to the computer, do not assign a number having a 0 in the  
position of “*” to any inverter on the network.)  
Examples of broadcast communications  
Ex: Set the frequency setting for communication to 60Hz.  
1 Host computer Multiple inverters: broadcast communications (ASCII Mode)  
Example of transmission of data from host computer to inverter: (**PFA011770)CR  
Example of data returned from inverter to host computer: (00PFA011770)CR  
Data is returned from the inverter numbered 00 only, while commands are issued to all inverters  
connected to the network.  
2 Host computer A specific group of inverters: group communications (ASCII Mode)  
Example of transmission of data from host computer to inverters: (*9PFA011770)CR  
Example of data returned from inverter to host computer: (09PFA011770)CR  
Data is returned only the inverter numbered 09 only, while commands are issued to a maximum of  
10 inverters bearing the number 09, 19, 29, 39, ... or 99.  
3 Host computer Multiple inverters: broadcast communications (Binary Mode)  
Example of transmission of data from host computer to inverters: 2F FF 50 FA 01 17 70 00  
Example of data returned from inverter to host computer: 2F 00 50 FA 01 17 70 01  
Returning is possible only for the inverter that has the number 00, and the command is transmitted  
to all the applicable inverter connected in the network.  
22  
 
E6581222  
An example of system configuration (schematic diagram)  
A
RS485 communication converter unit (RS4001Z,  
Host  
computer  
RS4002Z or RS4003Z) will be needed to control multiple  
inverters on the network.  
Block 2  
Block 1  
Inverter No.20 Inverter No.21  
Inverter No.29  
Inverter No. 10 Inverter No.11  
Inverter No.19  
VF-S11  
VF-S11  
VF-S11  
VF-S11  
VF-S11  
VF-S11  
*1  
*1: Error signal I/F  
In broadcast communications, only the representative inverter in each block returns data to the host  
computer. However, you can make the representative inverter in each block report the occurrence of  
a problem in the block. To do so, follow these steps.  
Set the timer function so that, if a time-out occurs, the inverter will trip (Ex.: =(sec)), set the  
output terminal selection parameter (FL) so that trip information will be output through the output  
terminal (=), and set the input terminal selection parameter (F) of the representative in-  
verter in each block to “external input trip (emergency stop)” (=). Then, connect the input  
terminal (F) of the representative inverter to the FL terminal of each of the other inverters in the same  
block. In this setting, if an inverter trips, the representative inverter will come to an emergency stop,  
and as a result it will report the occurrence of a problem in its block to the computer. (If the repre-  
sentative inverter returns a lowercase letter in response to a command from the computer, the com-  
puter will judge that a problem has arisen in an inverter.) To examine details on the problem that has  
arisen, the host computer accesses each individual inverter, specifying its communication number.  
To make the computer issue a command to all inverters in block 1 or block 2 shown in the figure  
above, specify “1*” or “2*”, respectively. In this system, inverter No. 10 will return data to the comput-  
er if a problem arises in block 1, or inverter No. 20 if a problem arises in block 2. For overall broad-  
cast communications, specify “**”, in which case the inverter with the communication number “00” will  
return data to the computer.  
In this example, if you want the computer to maintain communications without bringing an represen-  
tative inverter to an emergency stop, set its input terminal selection parameter to “disabled  
(=) but not to “external input trip (emergency stop).” This setting causes the host computer  
to check the setting of the input terminal information parameter (communication number: FE06) of  
the representative inverter, and as a result enables the computer to detect the occurrence of a prob-  
lem.  
CAUTION:  
Data from inverters will be deformed if inverters of the same number are connected on the network.  
Never assign same single numbers to inverters on the network.  
23  
 
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4.5. Examples of the use of communication commands  
Here are some examples of the use of communications commands provided for the VF-S11 series of  
inverters.  
Inverter numbers and checksum used in ASCII mode are omitted from these examples.  
Examples of communications  
- To run the motor in forward direction with the frequency set to 60 Hz from the computer  
<ASCII mode>  
Computer Inverter  
Inverter Computer  
(PFA011770)CR  
(PFA011770)CR  
…Set the operation frequency to 60 Hz.  
(60 / 0.01 Hz = 6000 = 1770H)  
(PFA00C400)CR  
(PFA00C400)CR  
…Set to “forward run” with commands and frequency  
instruction from the computer enabled.  
<Binary mode>  
Computer Inverter  
2F 50 FA 01 17 70 01  
2F 50 FA 00 C4 00 3D  
Inverter Computer  
2F 50 FA 01 17 70 01  
2F 50 FA 00 C4 00 3D  
- To monitor the operation frequency (during 60 Hz operation)  
<ASCII mode>  
Computer Inverter  
Inverter Computer  
(RFD00)CR  
(RFD001770)CR  
…Set the operation frequency to 60 Hz.  
(60÷0.01Hz=6000=1770H)  
<Binary mode>  
Computer Inverter  
2F 52 FD 00 7E  
Inverter Computer  
2F 52 FD 00 17 70 05  
- To monitor the status of the inverter  
<ASCII mode>  
Computer Inverter  
Inverter Computer  
(RFD01)CR  
(rFD010003)CR  
…For details on statuses, see 8.2 “Monitoring from  
the computer.” (Stop status, FL output status, trip  
status (r command))  
<Binary mode>  
Computer Inverter  
2F 52 FD 01 7F  
Inverter Computer  
2F 72 FD 01 00 03 A2  
- To check the trip code (when the inverter is tripped because of )  
…For details on trip codes, see “Trip code monitor” in 8.2, “Monitoring  
from the computer.” (18H = 24d “” trip status)  
<ASCII mode>  
Computer Inverter  
(RFC90)CR  
Inverter Computer  
(rFC900018)CR  
<Binary mode>  
Computer Inverter  
2F 52 FC 90 0D  
Inverter Computer  
2F 72 FC 90 00 18 45  
24  
 
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4.6. Examples of RS232C communication programs  
Ex. 1: BASIC program for monitoring the operation frequency continuously (RS232C, ASCII mode)  
(Toshiba version of Advanced BASIC-86 Ver. 3.01.05J)  
Monitoring the operation frequency continuously  
1) Examples of programs  
10 OPEN "COM1:9600,E,8,1" AS #1  
20 A$=”FE00”  
--- 9600 baud, even parity, 8-bit length, 1 stop bit  
--- Specifies the communication number for  
monitoring the operation frequency.  
--- Transmits data to the inverter.  
Note: The carriage return code is added  
automatically.  
30 PRINT #1,"("+”R”+A$+")"  
40 INPUT#1,B$  
50 AAA$=“&H”+MID$(B$,7,4)  
--- Receives data returned from the inverter.  
--- Extracts only data items from the data re-  
turned.  
60 F$=LEFT$(STR$(VAL(AAA$)/100),6)  
--- Converts data into decimal form.  
70 PRINT " Operation frequency =";F$+“Hz” --- Displays the operation frequency.  
80 GOTO 20 --- Repeats.  
2) Examples of program execution results (stop command issued during 80 Hz operation)  
Operation frequency = 80 Hz ...  
Operation frequency = 79.95Hz  
:
:
Operation frequency = 0Hz  
25  
 
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Ex. 2: BASIC program for executing an input command with checksum (RS232C, ASCII mode)  
(Toshiba version of Advanced BASIC-86 Ver. 3.01.05J)  
Checking if the maximum frequency setting has been changed correctly  
1) Examples of programs  
10 OPEN "COM1:9600,E,8,1" AS #1  
--- 9600 baud, even parity, 8-bit length, 1 stop bit  
--- Reads in data to be sent to the inverter.  
--- Adds “(“ and “&” to the read data in.  
20 INPUT"Send Data=";A$  
30 S$="("+A$+"&"  
40 S=0  
50 L=LEN(S$)  
60 FOR I=1 TO L  
Calculates the number of bits (checksum).  
70 S=S+ASC(MID$(S$,I,1))  
80 NEXT I  
90 CHS$=RIGHT$(HEX$(S),2)  
100 PRINT #1,"("+A$+"&"+CHS$+")"  
--- Sends the data including the checksum result  
to the inverter.  
110 INPUT #1,B$  
120 PRINT "Receive data= ";B$  
130 GOTO 20  
--- Receives data returned from the inverter.  
--- Displays the data received.  
--- Repeats.  
2) Examples of program execution results  
Send Data=? R0011  
--- Reads the maximum frequency (0011).  
--- 1F40 (Maximum frequency: 80 Hz)  
--- Changes the maximum frequency to 60 Hz  
(1770).  
Receive Data= (R00111F40&3D)  
Send Data=? W00111770  
Receive Data= (W00111770&36)  
Send Data=? R0011  
Receive Data= (R00111770&31)  
--- Reads the maximum frequency (0011).  
--- 1770 (Maximum frequency: 60 Hz)  
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Ex. 3 BASIC program for communication tests (RS232C, ASCII mode)  
(Toshiba version of Advanced BASIC-86 Ver. 3.01.05J)  
Accessing a parameter (with error code.)  
1) Examples of programs  
100 INPUT "Baud rate=9600/4800/2400/1200";SPEED$  
---- Selects a baud rate.  
110 INPUT "Parity=even(E)/odd(O)";PARITY$  
---- Selects parity.  
120 OPEN "COM1:"+SPEED$+","+PARITY$+",8,1"AS #1  
130 INPUT "Send data";B$  
140 PRINT #1,B$  
---- Enters a command.  
150 C$=""  
160 T=TIMER  
170 COUNT=(TIMER-T)  
180 IF COUNT >3 THEN 270  
190 IF COUNT <0 THEN T=TIMER  
200 IF LOC(1)= 0 THEN A$="":GOTO 220  
210 A$=INPUT$(1,#1)  
220 IF A$ <>CHR$(13) THEN 240  
230 GOTO 290  
---- Prevents an increase in the number of digits.  
---- Carriage return  
(CR) to finish reading in.  
240 IF A$="" THEN 160  
250 C$=C$+A$  
260 GOTO 160  
270 COLOR @0,7:PRINT "!!! There is no data to return. !!! ";:COLOR @7,0:PRINT  
280 GOTO 130  
---- Repeats.  
290 PRINT A$;  
300 C$=C$+A$  
310 PRINT "Return data=";c$;  
320 GOTO 130  
---- Repeats.  
2) Examples of program execution results (In this example, the inverter number is 00.)  
Baud rate=9600/4800/2400? 9600  
Parity=even(E)/odd(O)? E  
Send data? (00R0011)  
Return data= (00R00111770)  
Send data? ()  
---- Selects 9600 baud.  
---- Select E (even parity).  
---- Carries out test communications.  
---- Error  
!!! There is no data to return. !!!  
Send data? (R0011)  
Return data= (R00111770)  
Send data?  
---- No data is returned.  
:
:
27  
 
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Ex. 4 A VisualBaisc program for the ASCII mode communication  
(VisualBaisc is the registered trademark of the U.S. microsoft company.)  
Accessing a parameter  
1) Sample program executive example (Monitor of the output frequency (FD00))  
Transmission and reception of the optional data like in the following example can be done by doing  
"the arrangement of the form control" of the explanation and "the description of the code" with  
mentioning later.  
Reply data from the inverter  
are 1770H (6000d) with this  
example.  
As for the unit of the output  
frequency (FD00),1= 0.01Hz,  
the Inverter is being operated  
in 60.00Hz.  
2)Arrangement of the control on the form  
Two TextBox, two Labels , three CommandButton and one MsComm are arranged on the form as  
follows.  
28  
 
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3)The description of the code  
Private Sub Form_Load()  
Form1.Show  
'**********************************************************************  
' Setting the labels (Initialization)  
'**********************************************************************  
Label1.Caption = "Data for transmission"  
Label2.Caption = "Received data"  
Command1.Caption = "Transmit"  
Command2.Caption = "Clear"  
Command3.Caption = "Exit"  
'**********************************************************************  
' Setup of communication (Initialization)  
'**********************************************************************  
MSComm1.RThreshold = 0  
MSComm1.InputLen = 1  
MSComm1.CommPort = 1  
MSComm1.InBufferCount = 0  
MSComm1.OutBufferCount = 0  
Form1.MSComm1.Settings = "9600,E,8,1"  
Form1.MSComm1.InputMode = comInputModeText  
'**********************************************************************  
' A serial port is opened. (Initialization)  
'**********************************************************************  
If False = MSComm1.PortOpen Then  
MSComm1.PortOpen = True  
End If  
'**********************************************************************  
' Data are received.  
'**********************************************************************  
Do  
dummy = DoEvents()  
If MSComm1.InBufferCount Then  
Text1.Text = Text1.Text & MSComm1.Input  
End If  
Loop  
End Sub  
'**********************************************************************  
' The contents of the text box are transmitted.  
'**********************************************************************  
Private Sub Command1_Click()  
MSComm1.Output = Text2.Text & Chr(13)  
End Sub  
'**********************************************************************  
'The contents of the text box are removed.  
'**********************************************************************  
Private Sub Command2_Click()  
Text2.Text = ""  
Text1.Text = ""  
End Sub  
'**********************************************************************  
'A serial port is closed, end  
'**********************************************************************  
Private Sub Command3_Click()  
If True = MSComm1.PortOpen Then  
MSComm1.PortOpen = False  
End If  
End  
End Sub  
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5. MODBUS-RTU protocol  
The MODBUS-RTU protocol of VF-S11 supports only part of the MODBUS-RTU protocol. Only two  
commands are supported, “03: Multiple data read (limited only to two bytes)” and “06: Word writes.”  
All data will be binary codes.  
Parameter Setting  
Protocol Selection ()  
Select “MODBUSRTU protocol ( = ) in the communication selection parameters. “TO-  
SHIBA Inverter Protocol” (=) is set for communication protocol selection in initial shipment  
setting. (See “3. Communication protocol.”)  
* Caution when selecting MODBUS-RTU protocol  
The extension panel (RKP001Z) and parameter writer (PWU001Z) , these options cannot be used.  
Note that Parameter Numbers. , , ,  and  to  do not  
function.  
Inverter Number ()  
Inverter numbers. 0 to 247 can be specified in MODBUS-RTU. “0” is allocated to broadcast com-  
munication (no return). Set between 1 and 247.  
<Related Parameter: Change and set as necessary>  
 : Communication baud rate  
 : Parity  
 : Communication error trip time  
Timing of Message from Host  
MODBUS-RTU sends and receives binary data without a frame synchronization header character  
and defines the frame synchronizing system to recognize the start of a frame by no-data time.  
MODBUS-RTU initializes frame information and decides the data that is first received subsequently  
as the first byte of a frame if data is not communicated within a time for 3.5 bytes, including the start  
and stop bits, at the transmission speed of the on-going communication while standing by for data  
reception. If a frame is being received before no-data time for 3.5 bytes, this frame will be aborted.  
Be sure to provide more than 3.5 bytes for data send interval.  
Send data so that the time between characters will not be spaced for more than 1.5 bytes. Other-  
wise, MODBUS-RTU will sometimes recognize it as a start of data.  
In the case of data to other stations, messages from the host and responses from other stations are  
also received. A wait time for 3.5 bytes is needed before starting transmission after own station  
completes reception when sending a response to recognize a frame start at this time.  
30  
 
E6581222  
Data Exchange with Inverters  
The inverters are always ready to receive messages and perform slave operation in response to  
computer requests.  
A transmission error will result if the transmission format does not match. The inverters will not re-  
spond if a framing error, parity error, CRC error or an inverter number mismatch occurs.  
If no response is received, the computer side recognizes that a communication error has occurred.  
Transmit data again.  
(1) In case spacing for more than 3.5 bytes are provided before characters, all data immediately  
preceding it will be aborted. Data will sometimes be aborted if spacing for 1.5 bytes or more is  
provided between characters.  
(2) Communications will be effective only when inverter numbers match or the communication mode  
is broadcast communications. No response will be made if inverter numbers do not match.  
(3) Message reception will end if spacing for more than 3.5 bytes are provided at the end of charac-  
ters.  
(4) If no communications take place within the time specified using the timer function, the computer  
will assume that a communication error has occurred and trip the inverter. The timer function is  
disabled when the inverter is turned on or initialized. For details, see Section 7.3, “Timer func-  
tion.”  
(5) On executing the command received, the inverter returns data to the computer. For the response  
time, see Appendix 2, “Response time.”  
Caution:  
Communication is not possible for about one second after the power is supplied to the inverter until  
the initial setting is completed. If the control power is shut down due to an instantaneous voltage drop,  
communication is temporarily interrupted.  
31  
 
E6581222  
5.1. MODBUS-RTU transmission format  
MODBUS-RTU sends and receives binary data without a frame-synchronizing start code and defines  
the blank time to recognize the start of a frame. MODBUS-RTU decides the data that is first re-  
ceived subsequently as the first byte of a frame after a blank time for 3.5 bytes at the on-going com-  
munication speed.  
5.1.1. Read command (03)  
Computer VF-S11 *The text size is 8 bytes fixed.  
Commu- Commu- Number Number  
(3.5bytes Inverter  
Blank) No.  
nication  
No.  
(high)  
nication  
No.  
(low)  
of Data  
Groups  
(high)  
of Data  
Groups  
(low)  
CRC  
(low)  
CRC  
(high)  
(3.5bytes  
Blank)  
Command  
03  
00  
01  
1) Inverter No.. (1 byte)  
: Specify an inverter number between 0 and 247 (00H to F7H).  
Command processing will be executed only broadcast communication “0” and with  
those inverters that match set inverter numbers. Data will not be returned if “0”  
(broadcast communication) and inverter numbers do not match.  
2) Command (1 byte)  
: Set the read command (03H fixed).  
3) Communication No.. (2 bytes)  
: Set in the order of high to low numbers.  
4) Number of data groups (2 bytes) : Set the number of data words 0001 (fixed) in the order of high to low numbers.  
5) CRC (2 bytes)  
: Set generation results of CRC in the order of low to high numbers.. For the  
method to generate CRC, see “5.2 CRC Generation.” Note that the setting se-  
quence is reversal to that of others.  
VF-S11 Computer (Normal return) *The text size is 7 bytes fixed.  
(3.5bytes Inverter  
Number of Read data Read data  
CRC  
(low)  
CRC  
(high)  
Command  
03  
Blank)  
No.  
Data  
02  
(high)  
(low)  
1) Command (1 byte)  
2) Number of data  
: Read command (03H fixed) will be returned.  
: A number of data bytes (02H fixed) will be returned. The number of data groups for  
transmission to the inverters is 2 bytes and 01H fixed. Note that the number of data re-  
turned by the inverters is 1 byte and 02H fixed.  
3) Read data (2 bytes)  
: Returned in the order of read data (high) and (low).  
VF-S11 Computer (Abnormal return) *The text size is 5 bytes fixed.  
(3.5bytes  
Blank)  
CRC  
(low)  
CRC  
(high)  
Inverter No. Command Error Code  
83  
1) Command (1 byte)  
2) Error code (1 byte)  
: 83H fixed (Read command error) (Command + 80H)  
: See “4.3 Transmission errors.”  
Example: Reading output frequency (During 60Hz operation)  
(Computer inverter)  
(Inverter computer)  
01 03 FD 00 00 01 B5 A6  
01 03 02 17 70 B6 50  
Example: Data specification error  
(Computer inverter)  
(Inverter computer)  
01 03 FD 00 00 02 F5 A7  
01 83 03 01 31  
32  
 
E6581222  
5.1.2. Write command (06)  
Computer VF-S11 *The text size is 8 bytes fixed.  
Communi- Communi-  
Command cation No. cation No.  
(high) (low)  
(3.5bytes Inverter  
Blank) No.  
Write Data Write Data  
CRC  
(low)  
CRC  
(high)  
(3.5bytes  
Blank)  
(high)  
(low)  
06  
1) Inverter No. (1 byte)  
: Specify an inverter number between 0 and 247 (00H to F7H).  
Command processing will be executed only broadcast communication “0” and with  
those inverters that match set inverter numbers. Data will not be returned if “0”  
(broadcast communication) and inverter numbers do not match.  
: Set the write command (06H fixed).  
2) Command (1 byte)  
3) Communication No. (2 bytes) : Set in the order of high to low numbers.  
4) Write data (2 bytes)  
5) CRC (2 bytes)  
: Set in the order of high to low write data.  
: Set generation results of CRC in the order of low to high numbers. For the method to  
generate CRC, see “5.2 CRC Generation.” Note that the setting sequence is reversal  
to that of others.  
VF-S11 Computer (Normal return) *The text size is 8 bytes fixed.  
Communi- Communi-  
Command cation No. cation No.  
(high) (low)  
(3.5bytes Inverter  
Blank) No.  
Write Data Write Data  
CRC  
(low)  
CRC  
(high)  
(3.5bytes  
Blank)  
(high)  
(low)  
06  
: Write command (06H fixed) will be returned.  
: Returned in the order of write data (high) and (low).  
1) Command (1 byte)  
2) Write data (2 bytes)  
VF-S11 Computer (Abnormal return) *The text size is 5 bytes fixed.  
(3.5bytes  
Blank)  
CRC  
(low)  
CRC  
(high)  
Inverter No. Command Error Code  
86  
1) Command (1 byte)  
2) Error code (1 byte)  
: 86H fixed (Read command error) (Command + 80H)  
: See “4.3 Transmission errors.”  
Example: Writing in frequency command value (FA01) (60Hz)  
(Computer inverter)  
01 06 FA 01 17 70 E6 C6  
(Inverter computer)  
01 06 FA 01 17 70 E6 C6  
Example: Communication number error  
(Computer inverter)  
01 06 FF FF 00 00 89 EE  
01 86 02 C3 A1  
(Inverter computer)  
Note  
The EEPROM life is 10,000 operations.  
Do not write in the same parameter that has an EEPROM more than 10,000 times.  
The communication commands (FA00, FA20, FA26), communication frequency command (FA01),  
terminal output data (FA50) and analog output data (FA50) are stored in the RAMs only and no re-  
strictions are placed on them.  
33  
 
E6581222  
5.2. CRC Generation  
“CRC” is a system to check errors in communication frames during data transmission. CRC is  
composed of two bytes and has hexadecimal-bit binary values. CRC values are generated by the  
transmission side that adds CRC to messages. The receiving side regenerates CRC of received  
messages and compares generation results of CRC regeneration with CRC values actually received.  
If values do not match, data will be aborted.  
Flow  
A procedure for generating a CRC is:  
CRC generation ( )  
1, Load a 16–bit register with FFFF hex (all 1’s). Call this  
the CRC register.  
CRC initial data: FFFF  
2. Exclusive OR the first 8–bit byte of the message with the  
low–order byte of the 16–bit CRC register, putting the  
result in the CRC register.  
Byte counter n = 0  
No  
Byte counter n < Length  
3. Shift the CRC register one bit to the right (toward the  
LSB), zero–filling the MSB. Extract and examine the  
LSB.  
Yes  
CRC = (CRC XOR nth send byte  
(0 expanded to word (higher 8  
bits))  
4. (If the LSB was 0): Repeat Step 3 (another shift).  
(If the LSB was 1): Exclusive OR the CRC register with  
the polynomial value A001 hex (1010 0000 0000 0001).  
Bit counter = 0  
No  
Bit counter < 8  
Yes  
5. Repeat Steps 3 and 4 until 8 shifts have been per-  
formed. When this is done, a complete 8–bit byte will  
have been processed.  
C = (Remainder of CRC ÷ 2)  
CRC >> 1  
No  
6. Repeat Steps 2 through 5 for the next 8–bit byte of the  
message. Continue doing this until all bytes have been  
processed.  
Is remainder (C)  
other than 0?  
Yes  
CRC=  
(CRC XOR generating polyno-  
mial (A001))  
7. The final contents of the CRC register is the CRC value.  
8. When the CRC is placed into the message, its upper and  
lower bytes must be swapped as described below.  
Bit counter +1  
Byte counter +1  
End (Return CRC)  
5.3. Error codes  
In case of the following errors, the return commands from the inverters are added 80h to the com-  
mands received by the inverters. The following error codes are used.  
Error Code  
01  
Description  
Command error (Returned when a command other than 03 or 06 is received)  
Communication number error (A communication number is not found when Com-  
mand 03 or 06 is received)  
02  
03  
Data range error (Data range error when Command 03 or 06 is received  
Unable to execute (Command 06 is being received and data cannot be written)  
(1) Writing in write-disable-during-operation parameter  
04  
(2) Writing in parameter that is executing TYP  
34  
 
E6581222  
6. Inter-drive communication  
Inter-drive communication function enables manipulation of multiple inverters without using the host  
computer such as the PLC and the PC. This function is utilized for "speed proportional control". The  
command is instructed by the operation from the master inverter’s panel or analog input, etc.  
With the Inter-drive communication function, the master inverter continues to transmit the data se-  
lected by the parameters to all the slave inverters on the same network. The master inverter uses the  
S command for outputting instructions to the slave inverters, and the slave inverters do not return the  
data. (See chapter 4.2 "Command".) Network construction for a simple synchronized operation and  
speed-proportional operation can be created by this function.  
The inverters on the slave side are always ready to receive messages during inter-drive communica-  
tions and perform slave operation in response to requests made by the inverters on the master side  
or computer requests during inter-drive communications. The inverters on the master side are al-  
ways ready to send messages during inter-drive communications and do not receive data.  
To use the inter-drive communication function, select “TOSHIBA Inverter Protocol” (=) in  
the communication protocol selection parameters. “TOSHIBA Inverter Protocol” (=) is set  
for communication protocol selection in Shipment setting. (See “3. Communication protocol.”)  
<Conceptual illustration>  
Slave 1 (50Hz)  
VF-S11  
Slave 2 (40Hz)  
VF-S11  
Slave 3 (30Hz)  
VF-S11  
Master (60Hz)  
VF-S11  
*
A
RS485 communication converter unit (RS4001Z,  
RS4002Z or RS4003Z) will be needed to control multiple  
inverters on the network.  
Analog input  
<Notes>  
Speed command can be transmitted but the run / stop signal is not issued. Slave station should have an individual  
stop signal or the function to stop the action by the frequency reference. (Setting is necessary for : Opera-  
tion starting frequency, : Operation starting frequency hysteresis .)  
For continuing the operation by the last received command value in the case of a communication breakdown,  
provide a communication time-out interval () to trip the slave inverters. The master inverter does not trip  
even though the communication breakdown happens. To trip the master inverter, provide an interlock mechanism  
by installing an FL fault relay point or the like from the slave side.  
35  
 
E6581222  
Setting of parameter  
Selection of communication protocol () Shipment setting: 0 (TOSHIBA Inverter Protocol)  
Protocol setting with all inverters (both master and slave inverters) engaged in inter-drive commu-  
nications  
0: Set the TOSHIBA Inverter Protocol.  
* Inter-drive communications are disabled when the MODBUS-RTU protocol is selected.  
* This parameter is validated after resetting the inverter or rebooting the power supply.  
Setting of master and slave inverters for communication between inverters (setting of master and  
slave) () ... Shipment setting =   
Assign one master inverter in the network. Other inverters should be the slave inverters.  
*Specify only one inverter as the master. In case two or more inverters are designated for the  
master inverter in the same network, data will collide.  
- Setting to the master inverter  
Set data desired for sending from the master side to the slave side.  
:Master inverter(transmission of frequency commands) : Master inverter (transmission of  
output frequency signals)  
- Setting to the slave inverters  
Set the desired action on the slave side that will be needed when the master trips.  
: Sets the frequency command value to 0Hz. (Output frequency is limited by low-limit frequency)  
: Normal operation is continued  
(If an output frequency is set on the master side, the output frequency of the master side be-  
comes 0Hz due to tripping and the frequency of commands to the slave side becomes 0Hz.)  
: Makes an emergency stop (“E” trip).  
(The method to stop follows the setting in “Emergency stop selection ()”  
*This parameter is validated after resetting the inverter or rebooting the power supply.  
Communication waiting time () ... Shipment setting =   
- Setting to the master inverter  
Set up more than 0.03 seconds as a transmitting interval on the master side to wait for the proc-  
essing time on the slave side(= ).  
Speed setting mode selection () ... Shipment setting = : Built-in potentiometer  
Designate a target of speed command input for the inverter to the parameter .  
- Setting to the master inverter  
Designate a number except for “: serial communication ” ( ).  
- Setting to the slave inverters  
Designate “: serial communication ” ( =).  
36  
 
E6581222  
Relating communication parameters  
Following parameters should be set or changed if necessary.  
Communication baud rate ()... Shipment setting = : 9600bps  
Baud rate of all inverters in the network (master and slave) should be same network.  
Parity () ... Shipment setting = : Even parity  
Parity of all inverters in the network (master and slave) should be same network.  
Communication error trip time() ... Shipment setting =   
Operation is continued by the last received command value in the case of a communication break-  
down. To stop the operation of inverter, provide a communication time-out interval (ex. =)  
to the slave inverters. The master inverter does not trip even though the communication breakdown  
happens. To trip the master inverter, provide an interlock mechanism by installing a FL fault relay  
point or the like from the slave side.  
Frequency point selection ()  
Adjusted to the system.  
See chapter “6.1 Speed proportional control” for details.  
Setting example of parameters  
Parameters relating to the master side (example)  
Parameters relating to the slave side (example)  
  
  
  
Master (transmission of output frequency  
 Slave (0Hz command issued in case the master inverter  
fails)  
 Selection of communication protocol  
(Toshiba inverter protocol)  
 Communication time-out (ex. 1 second)  
 Communication baud rate (same to the master side)  
 Parity (same to the master side)  
 Terminal block (ex. Driven by F, ST)  
( Run and stop of operation is controlled with the frequency  
reference value by setting the “run frequency”.)  
(%) (100% at FH))  
Selection of communication protocol  
(Toshiba inverter protocol)  
Communication baud rate  
(ex. 19200bps)  
Parity (even parity)  
Example: Panel  
  
  
 Example: Built-in potentiometer  
 Communication waiting time  
(ex. 30msec)  
< For speed control >  
 Serial communication  
?  
Adjusted to the system Point 1 setting (%)  
  
  
  
?
?
?
Ditto  
Ditto  
Ditto  
Point 2 frequency (Hz)  
Point 2 setting (%)  
Point 2 frequency (Hz)  
37  
 
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6.1. Speed proportional control  
Various inclinations can be set by frequency point setting.  
The frequency command value on the slave side during inter-drive communication can be expressed  
by the following formulas.  
If inter-drive communication is not selected (=), point conversion is not performed.  
Point conversion is performed only when the command “S” is received.  
(Ex.)  
< unit > Frequency unit: 1=0.01(Hz), point setting unit: 1=0.01%  
Maximum  
frequency  
()  
Point 1  
setting  
()  
Point 1 fre-  
quency  
()  
Point 2  
setting  
()  
Point 2  
frequency  
()  
Frequency  
(Fc)  
Master (Fc)  
Slave 1  
100.00Hz  
(10000)  
50.00Hz  
(5000)  
100.00Hz  
(10000)  
0.00%  
(0)  
0.00Hz  
(0)  
100.00%  
(10000)  
100.00%  
(10000)  
90.00Hz  
(9000)  
45.00Hz  
(4500)  
Slave 2  
100.00Hz  
(10000)  
0.00%  
(0)  
0.00Hz  
(0)  
80.00Hz  
(8000)  
40.00Hz  
(4000)  
Sending data from the master:  
Master side fc×10000  
5000×10000  
Master send fc(%) =  
=
= 5000  
=
50%  
Master side FH  
10000  
Slave frequency Command(Hz)=  
Point 2 frequency(F813) - Point 1frequency(F812)  
Point 2(F814) - point 1(F811)  
x (Master command (%) - Point 1(F811)) + Point 1 frequency(F812)  
By the point conversion process,  
9000 0  
10000 0  
Slave 1: fc(Hz) =  
× (5000 0)0 = 4500 = 45Hz  
8000 0  
10000 0  
Slave 2: fc(Hz) =  
× (5000 0)0 = 4000 = 40Hz  
Diagram of speed proportional control】  
<Inverter’s internal computation>  
<Outside>←  
(Note)fc=frequency reference, FH=Maximum frequency  
Point conversion  
(Hz)  
Point2 Frequency()  
Slave command (Hz)  
Point1 Frequency()  
Master FC  
Slave command (Hz)  
Master send data=  
×10000  
Master FH  
Master command (%)  
Point1  
()  
Point2  
)  
(%)  
Master command (%)  
F814F812  
F813F811  
Slavecommand(Hz) =  
×(Master command(%)-F811)+F812  
38  
 
E6581222  
6.2. Transmission format for inter-drive communication  
Data type is handled in hexadecimal notation and the transmission characters are treated with the  
binary (HEX) code.  
The transmission format is basically the same to the case of binary mode. S command is used and  
the slave inverters do not return the data.  
Master inverter (VF-S11) to slave inverter (VF-S11) (Binary mode)  
Omission  
”  
INV-NO  
1 byte  
CMD  
1 byte  
Communication number  
2 bytes  
DATA  
2 bytes  
SUM  
1 byte  
(2FH)  
Checksum range  
Not omissible  
1) INV-NO (1 byte)  
2) CMD (1 byte)  
: Inverter number  
This is always excluded at the master inverter side at time of inter-drive communication, and  
can be added when the user utilize this data for the purpose of proportional operation.  
(When this code is added, only the inverter concerned will accept the data.)  
: Command  
53H(“S”) or 73(“s”) command ... command for inter-drive communication  
When the master inverter is not tripping, this will be 53H(“S”).  
When the master inverter is tripping, this will be 73H(“s”).  
3) Communication number (2 bytes)  
:
Communication number of frequency command (FA01).  
: Data of frequency command value.  
4) DATA (2 bytes)  
(0000H to FFFFH (no range check))  
As for the S command, see section 4.2 “Commands”, and see chapter “6 Inter-drive communication function” for the  
communication of inverters.  
39  
 
E6581222  
7. Communications parameters  
The settings of communication-related parameters can be changed from the operation panel and the  
external controller (computer). Note that there are two types of parameters: parameters whose set-  
tings take effect immediately after the setting and parameters whose settings do not take effect until  
the inverter is turned back on or reset.  
Com-  
munica-  
tion  
Default  
setting  
Title  
Function  
Adjustment range  
Unit  
Valid  
Reference  
Number.  
0: 1200bps  
1: 2400bps  
2: 4800bps  
3: 9600bps  
4: 19200bps  
0: NON (No parity)  
1: EVEN (Even parity)  
2: ODD (Odd parity)  
Communication  
baud rate  
0800  
-
-
3
1
After reset.  
After reset.  
Section 7.1  
Section 7.1  
  
  
0801  
Parity  
0802  
0803  
Inverter number  
0-255  
1
0
0
Real time  
Real time  
Section 7.2  
Section 7.3  
  
  
Communication  
error trip time  
Communication  
waiting time  
0: (disabled)  
1-100  
1s  
0805  
0.00-2.00s  
0.01s  
0.00  
Real time  
Section 7.4  
  
0: Slave inverter (0 Hz command issued  
in case the master inverter fails)  
Setting of master  
and slave inverters  
1: Slave inverter (Operation continued in  
case the master inverter fails)  
for communication 2: Slave inverter (Emergency stop trip-  
0806  
-
0
After reset.  
  
Chapter 6  
between inverters  
(setting of master  
and slave)  
ping in case the master inverter fails)  
3: Master inverter (transmission of fre-  
quency commands)  
4: Master inverter (transmission of output  
frequency signals)  
0811  
0812  
0813  
0814  
Point 1 setting  
0-100  
1%  
0.01Hz  
1%  
0
Real time  
Real time  
Real time  
Real time  
  
  
  
  
Point 1 frequency 0.0-500.0Hz  
Point 2 setting 0-100  
0.0  
Section 6.1  
Chapter 3  
100  
60.0  
Point 2 frequency 0.0-500.0Hz  
Selection of com-  
munication proto-  
col  
0.01Hz  
0: Toshiba inverter protocol  
1: Modbus-RTU protocol  
0829  
0870  
-
-
0
After reset.  
  
  
0: No selection  
Block write data 1  
Block write data 2  
Block read data 1  
1: Command information 1  
2: Command information 2  
3: Frequency command  
4: Output data on the terminal board  
5: Analog output for communications  
0: No selection  
0
After reset.  
0871  
  
0875  
0876  
0877  
0878  
  
  
  
  
1: Status information  
Section  
4.1.3  
Block read data 2 2: Output frequency  
3: Output current  
Block read data 3  
4: Output voltage  
-
0
0
5: Alarm information  
Block read data 4  
After reset.  
Real time  
6: PID feedback value  
7: Input terminal board monitor  
8: Output terminal board monitor  
9: VIA terminal board monitor  
10: VIB terminal board monitor  
0879  
0880  
Block read data 5  
Free notes  
  
  
0-65535  
1
Section 7.5  
40  
 
E6581222  
7.1. Communication baud rate() , Parity bit()  
Communication baud rate and parity bit should be uniform inside the same network.  
This parameter is validated by resetting the power supply.  
7.2. Inverter number()  
This parameter sets individual numbers with the inverters.  
Inverter numbers should not be duplicate inside the same network.  
Receiving data will be canceled if inverter numbers specified in individual communications and set by  
a parameter do not match.  
This parameter is validated from the communication after change  
Data range: 0 to 255 (Initial value: 0)  
Parameters can be selected between 0 and 255. Note that the communication protocols limit in-  
verter numbers as follows:  
TOSHIBA Inverter Protocol ASCII mode: 0 to 99  
TOSHIBA Inverter Protocol Binary mode: 0 to 63  
MODBUS Protocol: 0 to 247  
41  
 
E6581222  
7.3. Timer function()  
This function detects any normal data that is not detected even once within an arbitrarily predeter-  
mined time.  
The timer function is used to detect breaks in cables during communications and to trip an inverter  
() if the inverter has received no data within the time specified using this function. If the in-  
verter number does not match or if a format error occurs, preventing the inverter from returning data  
to the computer, this function will assume that the inverter has not received any data.  
How to set the timer  
The communication error trip time parameter () is set to 0 (timer off) by default.  
* Timer adjustment range  
About 1 sec. (01H) to about 100 sec. (64H) / Timer off (0H)  
How to start the timer  
If the timer is set from the operation panel, it will start automatically the instant when communication  
is established for the first time after the setting.  
If the timer is set from the computer, it will start automatically the instant when communication is es-  
tablished after the setting.  
If the timer setting is stored in the EEPROM, the timer will start when communication is established  
for the first time after the power has been turned on.  
Note that, if the inverter number does not match or if a format error occurs, preventing the inverter  
from returning data, the timer function will assume that no communication has taken place and will  
not start.  
How to disable the timer  
To disable the timer, set its parameter to 0.  
Ex.:To disable the timer function from the computer (To store the timer setting in the EEPROM)  
Computer Inverter  
Inverter Computer  
(W08030)CR  
(W08030000)CR  
... Sets the timer parameter to 0 to disable it.  
Timer  
Time-out period  
The timer measures the time  
elapsed before the inverter ac-  
knowledges receipt of data after it  
acknowledged receipt of the previ-  
ous data.  
Computer link  
PC INV  
PC INV  
INV PC  
42  
 
E6581222  
7.4. Setting function of communication waiting time ()  
Use this function for the following case:  
When the data response from the inverter is too quick after the PC had sent the data to the inverter,  
PC process cannot get ready to receive the data, or when the RS485/RS232C converter is used,  
changeover of sending and receiving data takes much time in the converter process.  
The case of " Inter-drive communication ", set up more than 0.03 seconds as a transmitting interval  
on the master side to wait for the processing time on the slave side(= ).  
* This function, however, does not operate in case the MODBUS-RTU protocol is selected in com-  
munication protocol selection. (=)  
Functional specification:  
A time for sending data is prolonged longer than the preset time, until the inverter returns the data to  
the PC, after it finishes receiving the data (in case of an inter-drive communication, until the inverter  
returns the next data to the PC, after it has sent the data.) In case the inverter's processing capacity  
requires longer setting time, the value more than this time will be the set value. (The parameter mak-  
es the inverter wait for more than the set time.)  
Setting range:  to seconds (10ms to 2000ms)  
If the set value is , this function becomes invalid and the interval time for sending data is set to the  
maximum capacity of the inverter. To obtain a quick response for sending data, set value .  
Time from the confirmation of the  
data reception (transmission, in the  
Time elapses more than  
transmission waiting time.  
case of inter-drive communication)  
Computer link  
PC INV  
to the transmission of data, is  
adjusted.  
INV PC  
If the inverter's processing time  
requires longer time than the  
transmission waiting time, the time  
is prolonged.  
Time elapses more than the  
transmission waiting time.  
Inter-drive  
communication  
Master INV  
to Slave INV  
Master INV to  
Slave INV  
7.5. Free notes()  
This parameter allows you to write any data, e.g., the serial number of each inverter or parameter  
information, which does not affect the operation of the inverter.  
43  
 
E6581222  
8. Commands and monitoring from the computer  
Across the network, instructions (commands and frequency) can be sent to each inverter and the  
operating status of each inverter can be monitored.  
8.1. Communication commands (commands from the computer)  
Communication command (Communication number: FA00)  
Commands can be executed on inverter frequencies and operation stop through communications.  
The VF-S11 series can enable command and frequency settings through communications irrespec-  
tive of settings of the command mode () and frequency mode (). However, if “48:  
Forced change from communication to local,” “52: Forced operation,” or “53: Fire speed” is set by in-  
put terminal function selection ( to ), a change to a command other than communica-  
tion and to a frequency command is feasible through a contact on the terminal board.  
Once the communication command (FA00) is set to enable communication command priority and  
frequency priority, both priorities will be enabled unless OFF is set, power is turned off or is reset, or  
standard shipment setting () is selected. Emergency stop, RY terminal output hold and OUT  
terminal output hold are always enabled even though communication command priority is not set.  
Table 1 Data construction of communication commands (communication number: FA00)  
bit Specifications  
0
1
S7 S9/nC1/S11  
Remarks  
0 Preset speed operation Preset speed operation is disabled or 9  
9
Preset speed operation can be  
disabled or a preset speed op-  
eration frequencies (1-15) can  
be specified by combining 4 bits  
variously.  
frequencies 1  
preset speed operation frequencies (1-  
15) are set by specifying bits for preset  
speed operation frequencies 1-4.  
(0000: Preset speed operation OFF,  
001-1111: Setting of preset speed  
operation frequencies (1-15))  
1 Preset speed operation  
frequencies 2  
2 Preset speed operation  
frequencies 3  
3 Preset speed operation  
frequencies 4  
4 Motor selection (1 or 2)  
(THR 2 selection)  
Motor 1  
(THR 1)  
Motor2  
(THR2)  
-
9
THR1 : PT=set value, vL, vb, tHr  
THR2 : PT=0, F170, F172, F173  
5 PI control  
Normal operation  
Accelera-  
tion/deceleration  
pattern 1 (AD1)  
OFF  
PI OFF  
-
9
9
6 Acceleration/deceleration  
pattern selection (1 or 2)  
(AD2 selection)  
Accelera-  
tion/deceleration  
pattern 2 (AD2)  
9
AD1 : ACC, DEC,  
AD2 : F500, F501  
7 DC braking  
Forced DC braking 9  
9
9
9
8 Jog run  
OFF  
Jog run  
9
9
9 Forward/reverse  
selection  
run  
Forward run  
Reverse run  
10 Run/stop  
Stop  
Standby  
OFF  
Run  
9
9
9
9
9
9
11 Coast stop command  
12 Emergency stop  
13 Fault reset  
Coast stop  
Emergency stop 9  
“E” trip  
OFF  
Reset  
9
9
9
No data is returned from the  
inverter.  
14 Frequency priority selec-  
OFF  
OFF  
Enabled  
Enabled  
9
9
Enabled regardless of the set-  
ting of   
tion  
15 Command priority selec-  
tion  
Enabled regardless of the set-  
ting of   
Note: For the reset command, no data will be returned.  
Ex.: Forward run: (PFA008400) CR  
1 is specified for bit 15 (communication command: enabled) and bit 10 (operation command).  
BIT15  
BIT0  
0
FA00:  
1
0
0
0
0
1
0
0
0
0
0
0
0
0
0
8
4
0
0
Ex.: Reverse run: (PFA008600) CR, (PFA00C600) CR  
8600H : To disable frequency instructions from the computer  
C600H : To enable also frequency instructions from the computer  
44  
 
E6581222  
Communication command2 (Communication Number : FA20)  
This command is enabled only when the communication command is enabled. Set Bit 15 of Com-  
munication Command 1 (communication Number: FA00) to “1” (enable). When enabling the com-  
munication command by Communication Command 1, commands by communications can be given  
the priority irrespective of the setting of the command mode selection parameter (). How-  
ever, if “48: Forced change from communication to local,” “52: Forced operation,” or “53: Fire speed”  
is set by input terminal function selection ( to ), the enabled command and frequency  
will be given the priority.  
Once enabled, this setting will be enabled till disable is set (0 setting), power is turned off or is reset,  
or standard shipment setting () is selected.  
Table 2 Data construction of serial communication command 2 (FA20)  
Bit  
Function  
0
1
Remarks  
0
(Reserved)  
electric power quantity  
reset  
electric power quantity  
(FE76, FE77) reset  
1
OFF  
Reset  
2
3
4
5
6
7
(Reserved)  
(Reserved)  
(Reserved)  
(Reserved)  
(Reserved)  
(Reserved)  
Acceleration/deceleration  
pattern selection 1  
Select Acceleration/ de-  
celeration 1 - 3 by combi-  
nation of two bits  
8
00: Acceleration/deceleration 1  
01: Acceleration/deceleration 2  
10: Acceleration/deceleration 3,  
11: Disabled (Accelera-  
AD1: ACC, DEC  
AD2: F500, F501  
AD3: F510, F511  
Acceleration/deceleration  
pattern selection 2  
9
tion/deceleration 3)  
10  
11  
(Reserved)  
(Reserved)  
Over-current stall level  
change  
OC1: F601  
OC2: F185  
12  
OC stall 1  
OC stall 2  
13  
14  
15  
(Reserved)  
(Reserved)  
(Reserved)  
Note: The acceleration/deceleration change command ORs with Bit 6 of Communication number  
FA00. Set Bit 6 of FA00 to “0” and use FA20 when changing acceleration/deceleration in  
three types. Acceleration/deceleration 3 will be set when both Bit 8 of Communication num-  
ber FA20 (or Bit 6 of Communication number FA00) and Bit 9 of Communication number  
FA20 are set.  
45  
 
E6581222  
Communication command3 (Communication number: FA26)  
The RY Terminal Output Hold Command and OUT Terminal Output Hold Command are always en-  
abled even though communication command priority is not set.  
Table 3 Data construction of Serial Communication Command 3 (FA26)  
Bit  
Function  
0
1
Remarks  
Once it is turned  
on, a RY terminal  
holds that condi-  
tion.  
Always enabled even if  
communication command  
is not enabled  
0
RY terminal output hold  
OFF  
Once it is turned  
on, an OUT ter-  
minal holds that  
condition.  
Always enabled even if  
communication command  
is not enabled  
1
OUT terminal output hold  
OFF  
2
3
(Reserved)  
(Reserved)  
(Reserved)  
(Reserved)  
(Reserved)  
(Reserved)  
(Reserved)  
(Reserved)  
(Reserved)  
(Reserved)  
(Reserved)  
(Reserved)  
(Reserved)  
(Reserved)  
4
5
6
7
8
9
10  
11  
12  
13  
14  
15  
Frequency setting from the computer (communication number: FA01)  
Setting range: 0 to Maximum frequency ()  
This frequency command is enabled only when the frequency command by communication is en-  
abled by setting “serial communication (“3” for Communication Number FA04) by the speed com-  
mand selection parameter () or setting command priority (Bit 14 of Communication Number  
FA00 to “1” (enable)) by the communication command. In this case, frequency commands by  
communication will be enabled independent of  setting. However, enabled commands and  
frequencies are given the priority if “48: Forced change from communication to local,” “52: Forced  
operation,” or “53: Fire speed” is set by input terminal function selection ( to ).  
Once enabled, this frequency setting will be enabled till disable is set (0 setting), power is turned off  
or is reset, or standard shipment setting () is selected.  
Set a frequency by communication hexadecimal in Communication Number FA01. (1 = 0.01Hz  
(unit))  
Example: Operation frequency 80Hz command (PFA011F40) CR  
80Hz = 80 ÷ 0.01 = 8000 = 1F40H  
46  
 
E6581222  
8.2. Monitoring from the computer  
This section explains how to monitor the operating status of the inverter from the computer.  
Monitoring of the operation frequency from the computer (FE00, FD00)  
Operation frequency (frequency immediately before the occurrence of a trip):  
Communication Number FE00 (Minimum unit: 0.01 Hz)  
Operation frequency (current frequency): Communication Number FD00 (Minimum unit: 0.01 Hz)  
Ex.:Monitoring of operation frequency (during 50 Hz operation) ... (1388H = 5000d, 5000 x 0.1 = 50  
Hz)  
Computer Inverter  
Inverter Computer  
(RFD00) CR  
(RFD001388) CR  
Inverter operating status (FE01, FD01)  
Operating status (status immediately before the occurrence of a trip):  
Communication Number FE01  
Communication Number FD01  
Operating status (current status):  
Table 2 Data construction of inverter operating status (FE00/FD00) (*: FD01 supports the VF-S11 and later models.)  
Bit Specifications  
0 Failure FL  
0
1
S7 S9 S11/nC1  
Remarks  
No output  
Output in prog- - -  
ress  
9
1 Failure  
Not tripped  
Tripped  
- -  
9
Trip statuses include   
and trip retention status.  
2 Alarm  
No alarm  
-
Alarm issued - -  
9
-
3 Reserved  
-
- -  
4 Motor section (1 or 2)  
(THR 2 selection)  
5 PI control OFF  
Motor 1 (THR 1) Motor 2 (THR 2) - 9  
9
THR1: PT=set value, vL, vb, Thr  
THR2:PT=0, F170, F172, F173  
PI control  
permitted  
PI control  
prohibited  
- 9  
9
9
6 Acceleration/deceleration  
pattern selection (1 or 2)  
Acceleration/  
deceleration  
Acceleration/ 9 9  
AD1 :ACC, DEC,  
AD2 :F500, F501  
deceleration  
pattern 1 (AD 1) pattern 2 (AD 2)  
7 DC braking  
OFF  
Forced DC  
braking  
9 9  
9 9  
9
8 Jog run  
OFF  
Forward run  
Stop  
Jog run  
9
9
9
9
9
9 Forward/reverse run  
10 Run/stop  
Reverse run 9 9  
Run  
9 9  
- 9  
11 Coast stop (ST=OFF)  
12 Emergency stop  
ST=ON  
ST=OFF  
Not emergency Emergency stop - 9  
stop status  
status  
13 Standby ST=ON  
Start-up process  
Standby  
- -  
9
Standby: Initialization completed,  
not failure stop status, not alarm  
stop status (MOFF, LL forced  
stop or forced stop due to a  
momentary  
power  
failure),  
ST=ON, and RUN=ON  
14 Standby  
Start-up process  
Standby  
- -  
9
Standby: Initialization completed,  
not failure stop status, and not  
alarm stop status (MOFF, LL  
forced stop or forced stop due to  
a momentary power failure)  
15 Reserved  
-
-
- -  
-
47  
 
E6581222  
Inverter operating status3 (FE42, FD42)  
Operating status 3(status immediately before the occurrence of a trip):  
Communication Number FE42  
Communication Number FD42  
Operating status 3(current status):  
Bit  
0
Function  
(Reserved)  
0
1
Remarks  
1
Electric Power Counting  
(FE76,FE77) status  
(Reserved)  
Counting  
Resetting  
2
3
4
5
6
7
8
(Reserved)  
(Reserved)  
(Reserved)  
(Reserved)  
(Reserved)  
Acceleration/deceleration  
pattern selection1  
Acceleration/deceleration  
pattern selection2  
(Reserved)  
00:Acceleration/deceleration 1  
01:Acceleration/deceleration 2  
10:Acceleration/deceleration 3  
Acceleration/ decelera-  
tion 1 - 3 can be speci-  
fied by combination of  
two bits  
9
10  
11  
12  
(Reserved)  
Over-current stall level change  
OC stall 1  
OC stall 2  
OC1:F601  
OC2:F185  
13  
14  
15  
(Reserved)  
(Reserved)  
(Reserved)  
Inverter operating status4 (FE49, FD49)  
Operating status 4(status immediately before the occurrence of a trip):  
Communication Number FE49  
Operating status 4(current status):  
Communication Number FD49  
Bit  
0
Function  
0
1
Remarks  
RY terminal output hold  
OUT terminal output hold  
OFF  
OFF  
Holding  
Holding  
1
2 to 15 (Reserved)  
48  
 
E6581222  
Inverter operating command mode status (FE45)  
The monitor of the command mode that the present condition is enabled  
Data  
Enabled command  
Terminal board  
0
1
2
Operation panel  
Serial communication  
Inverter operating frequency mode status (FE46)  
The monitor of the frequency command mode that the present condition is enabled  
Note that Preset speed operation frequencies is given the priority independent of the frequency  
mode, in which case this monitor will be disabled, in case Preset speed operation frequencies is se-  
lected.  
Data  
Enabled frequency  
Potentiometer at Operation panel  
VIA  
0
1
2
3
4
5
6
VIB  
Operation panel  
Serial communications  
TB up down frequency  
VIA + VIB  
49  
 
E6581222  
Alarm information monitor (FC91)  
Remarks  
Bit  
Specifications  
Over-current alarm  
0
1
(Code displayed on the panel)  
0
1
Normal  
Normal  
Normal  
Normal  
Normal  
Normal  
-
Alarming  
Alarming  
Alarming  
Alarming  
Alarming  
Alarming  
-
 flickering  
 flickering  
Inverter overload alarm  
Motor overload alarm  
Overheat alarm  
 flickering  
 flickering  
 flickering  
2
3
4
Overvoltage alarm  
Main circuit undervoltage alarm  
(Reserved)  
5
-
-
-
-
-
-
6
7
Low current alarm  
Normal  
Normal  
Normal  
Normal  
Alarming  
Alarming  
Alarming  
Alarming  
8
Over-torque alarm  
Braking resistor overload alarm  
9
Cumulative operation hours  
alarm  
10  
11 (Reserved)  
-
-
-
12 (Reserved)  
-
-
-
13 Main-circuit voltage error alarm  
Normal  
-
Alarming  
 flickering  
At the time of the instant black-  
Decelerating, Related: F256 setting  
stopping  
14  
out, Forced deceleration/stop  
An automatic stop during the  
lower limit frequency continu-  
Decelerating, Related: F302 setting  
stopping  
15  
-
ance  
Cumulative operation time alarm monitor (FE79)  
Bit  
0
Specifications  
Fan life alarm  
0
1
Remarks  
Normal  
Normal  
Normal  
Normal  
-
Alarm issued  
Alarm issued  
Alarm issued  
Alarm issued  
-
-
-
-
-
-
1
Circuit board life alarm  
Main-circuit capacitor life alarm  
User set alarm  
2
3
4-15 (Reserved)  
50  
 
E6581222  
Trip code monitor (current status: FC90: historic records: FE10 to FE13)  
Data  
Data  
(hexadeci-  
mal number)  
(decimal  
number)  
Code  
Description  
0
0
1
2
3
4
5
8
9
No error  
nerr  
oc1  
1
2
Over-current during acceleration  
Over-current during deceleration  
Over-current during constant speed operation  
Over-current in load at startup  
Short circuit in arm  
oc2  
3
oc3  
4
ocl  
5
oca  
8
Input phase failure  
ephi  
epho  
op1  
9
Output phase failure  
A
10 Overvoltage during acceleration  
11 Overvoltage during deceleration  
12 Overvoltage during constant speed operation  
13 Over-LOAD in inverter  
14 Over-LOAD in motor  
B
op2  
C
op3  
D
ol1  
E
ol2  
10  
11  
12  
13  
14  
15  
16  
17  
18  
1A  
16 Overheat trip  
oh  
17 Emergency stop  
e
18 EEPROM fault 1 (writing error)  
19 EEPROM fault 2 (reading error)  
20 EEPROM fault 3 (internal fault)  
21 RAM fault  
eep1  
eep2  
eep3  
err2  
err3  
err4  
err5  
err7  
22 ROM fault  
23 CPU fault  
24 Communication error trip  
26 Current detector fault  
1B  
1D  
1E  
20  
22  
25  
26  
27  
29  
2E  
2F  
32  
33  
34  
35  
54  
27 Optional circuit board type error  
29 Small-current trip  
err8  
uc  
30 Trip due to undervoltage in main circuit  
32 Over-torque trip  
up1  
ot  
34 Ground fault trip (hardware detection)  
37 Overcurrent flowing in element during acceleration  
38 Overcurrent flowing in element during deceleration  
39 Overcurrent flowing in element during operation  
41 Inverter type error  
ef2  
oc1p  
oc2p  
oc3p  
etyp  
oh2  
46 External thermal input  
47 PM motor step-out  
sout  
e-18  
e-19  
e-20  
e-21  
etn1  
VIA cable break in an analog signal cable  
50  
51 CPU fault  
52 Excess torque boost  
53 CPU fault  
84 Auto-tuning error  
51  
 
E6581222  
Inverter model (capacity) code (FB05)  
Data  
Data  
(decimal number)  
Model  
(hexadecimal number)  
VFS11-2002PM-AN  
VFS11-2004PM-AN  
VFS11-2007PM-AN  
VFS11-2015PM-AN  
VFS11-2022PM-AN  
VFS11-2037PM-AN  
VFS11-2055PM-AN  
VFS11-2075PM-AN  
VFS11S-2002PL-AN  
VFS11S-2004PL-AN  
VFS11S-2007PL-AN  
VFS11S-2015PL-AN  
VFS11S-2022PL-AN  
VFS11-4004PL-AN  
VFS11-4007PL-AN  
VFS11-4015PL-AN  
VFS11-4022PL-AN  
VFS11-4037PL-AN  
VFS11-4055PL-AN  
VFS11-4075PL-AN  
VFS11-4110PL-AN  
VFS11-4150PL-AN  
VFS11-2110PM-AN  
VFS11-2150PM-AN  
1
1
2
2
4
4
6
6
7
7
9
9
A
10  
11  
25  
26  
28  
30  
31  
34  
36  
38  
39  
41  
42  
43  
44  
45  
108  
109  
B
19  
1A  
1C  
1E  
1F  
22  
24  
26  
27  
29  
2A  
2B  
2C  
2D  
6C  
6D  
52  
 
E6581222  
8.3. Control of input/output signals from communication  
The input terminals, output terminals, analog input and output signals of the inverters can be con-  
trolled by communications.  
Terminal Output Data (FA50)  
The output terminals on the inverters can be controlled directly by communications.  
Before controlling them, select Function Number 38 to 41 in Output Terminal Function Selection  
( - , ,). Set data (0 or 1) can be output to the output terminals by  
setting data of Bit 0 and Bit 1 of terminal output data (FA50) by communications.  
Data construction of Terminal Output Data (FA50)  
Bit  
0
Output Terminal Function  
Specified data output 1  
0
1
OFF  
ON  
(Output terminal selection Number : 38, 39)  
Specified data output 2  
1
OFF  
ON  
(Output Terminal Selection Number : 40, 41)  
2 to 15  
Example : Controlling only Terminal OUT1 by communication  
Set “38” (specified data output 1 [positive logic]) in Output Terminal Selection 1 () in  
advance and set “0001H” in FA50 to turn Terminal OUT1 on.  
BIT15  
BIT0  
1
FA50:  
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
Analog Output Data (FA51)  
The analog terminals on the inverters, such as Terminal FM can be controlled directly by communi-  
cations.  
Select “18” (communication analog output) in Analog Terminal Connection Selection Parameters  
(example: FM terminal connection meter selection []) before controlling them.  
Data set in Analog Output Data (FA51) can be output from the selected analog terminal. The data  
adjustment range is 0 to 1023 (10bit resolution) . Refer to “Meter Setting and adjustment” in the in-  
struction manual for inverters for the complete information.  
53  
 
E6581222  
Input terminal board status (FD06, FE06)  
Input terminal board status (status immediately before the occurrence of a trip):  
Communication Number FE06  
Communication Number FD06  
Input terminal board status (current status):  
In case “0: No assignment function” is selected in function selection, inverter operations will not be  
affected even when terminals are turned on and off. Therefore, the terminals can be used as input  
terminals for customer’s own use.  
The input terminal function selection parameter is used to select a function for each input terminal.  
When monitoring the operating status, check what function is assigned to each internal terminal.  
Data construction of input terminal board (FE06)  
Bit  
Terminal name (extended)  
Function (parameter title)  
Input terminal selection 1 (f111)  
Input terminal selection 2 (f112)  
Input terminal selection 3 (f113)  
Input terminal selection 4 (f114)  
Input terminal selection 5 (f115)  
Input terminal selection 6 (f116)  
Input terminal selection 7 (f117)  
Input terminal selection 8 (f118)  
-
0
1
0
F
OFF  
OFF  
OFF  
OFF  
OFF  
OFF  
OFF  
OFF  
-
ON  
ON  
ON  
ON  
ON  
ON  
ON  
ON  
-
1
R
2
RES  
S1  
3
4
S2  
5
S3  
6
7
VIB *1  
VIA *1  
8 ~ 15  
-
*1: It is valid only when it is selected as contact input by .  
It is effective only when it is chosen with F109 for input of a contact point.  
Ex.: FE06 data when the F and S1 terminals are ON: 0009H  
BIT15  
BIT0  
1
FE06:  
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
9
0
Output terminal board status (FD07, FE07)  
Output terminal board status (status immediately before the occurrence of a trip):  
Communication Number FE07  
Communication Number FD07  
Output terminal board status (current status):  
The output terminal function selection parameter is used to select a function for each output terminal.  
When monitoring the operating status, check what function is assigned to each output terminal.  
Data construction of output terminal board (FD07,FE07)  
Bit  
Terminal name  
Function (parameter title)  
Output terminal selection1(f130)  
Output terminal selection1(f131)  
Output terminal selection3(f132)  
-
0
1
0
RY  
OUT  
FL  
OFF  
OFF  
OFF  
-
ON  
ON  
ON  
-
1
2
3 15  
-
Ex.: FE07 data when both the RY and OUT terminals are ON: 0003H  
BIT15  
BIT0  
FE07:  
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
0
0
0
3
54  
 
E6581222  
Analog Input Monitors (FE35, FE36)  
Analog input value VIA monitor: “Communication Number FE35”  
Analog input value VIB monitor: “Communication Number FE36”  
Data: 10bit resolution (Data range 0 to 1023)  
These monitors can also be used as an A/D converter independent of inverter control.  
Setting except for “VIA” as the frequency setting mode will allow analog input (VIA) as an A/D con-  
verter independent of inverter control.  
Setting other than “VIB” as the frequency setting mode will allow analog input (VIB) as an A/D con-  
verter independent of inverter control.  
Note, however, input data to analog terminals will be regarded as frequency commands in case  
analog input is selected in frequency setting mode selection.  
55  
 
E6581222  
8.4. Utilizing panel (LEDs and keys) by communication  
The VF-S11 can display data that is not related to the inverters through an external controller or other  
means. Input by key operations can also be executed. The use of inverter resources reduces the  
cost for the entire system.  
8.4.1. LED setting by communication  
Desired LED information can be displayed by communication.  
<How to Set>  
Set the standard monitor display selection parameter to “communication LED setting (=).”  
When in the standard monitor mode status, LED information is displayed according to the setting of  
Communication Number FA65. (Is set to Communication Number FA65 = 1 and initial data “dAtA”  
in shipment setting)  
In case of an alarm while setting communication LEDs, the alarm display will alternately display  
specified LED data and alarm message.  
For example, if an over-current alarm (alarm display “”) occurs while “.” is displayed by this  
function, “” and “.” will be displayed alternately.  
Commu-  
nication  
Number.  
FA65  
Shipment  
setting  
Parameter Name  
Range  
Select display by communication  
0: Numeric data (FA66, FA67, FA68)  
1
1: ASCII data 1 (FA70, FA71, FA72, FA73,  
FA74)  
2: ASCII data 2 (FA75, FA76, FA77, FA78,  
FA79)  
FA66  
FA67  
Numeric display data  
(Enabled if FA65=0)  
Decimal point position  
(Enabled if FA65=0)  
0-9999  
0
0
0: No decimal point (xxxx)  
1: First digit below decimal point (xxx.x)  
2: Second digit below decimal point (xx.xx)  
0:Hz off, % off, 1:Hz on, % off  
2:Hz off, % on, 3:Hz on, % on  
0 – 127 (0 – 7FH)  
FA68  
FA70  
LED data 0 for unit  
(Enabled if FA65=0)  
ASCII display data 1, first digit from  
left  
0
64H (’d’)  
41H (’A’)  
74H (’t’)  
41H (’A’)  
(See ASCII LED display code chart)  
(Enabled if FA65=1)  
ASCII display data 1, second digit  
from left  
(Enabled if FA65=0)  
ASCII display data 1, third digit from  
left  
FA71  
FA72  
FA73  
0 – 256 (0 – FFH)  
(See ASCII LED display code chart)  
0 – 256 (0 – FFH)  
(See ASCII LED display code chart)  
(Enabled if FA65=1)  
ASCII display data 1, fourth digit from 0 – 127 (0 – 7FH)  
left  
(See ASCII LED display code chart)  
(Enabled if FA65=1)  
LED data 1 for unit  
(Enabled if FA65=1)  
ASCII display data 2, first digit from  
left  
FA74  
FA75  
0:Hz off, % off, 1:Hz on, % off  
2:Hz off, % on, 3:Hz on, % on  
0 – 127 (0 – 7FH)  
0
30H (’0’)  
(See ASCII LED display code chart)  
(Enabled if FA65=2)  
ASCII display data 2, second digit  
from left  
(Enabled if FA65=2)  
ASCII display data 2, third digit from  
left  
(Enabled if FA65=2)  
ASCII display data 2, fourth digit from 0 – 127 (0 – 7FH)  
left  
FA76  
FA77  
FA78  
FA79  
0 – 256 (0 – FFH)  
(See ASCII LED display code chart)  
30H (’0’)  
30H (’0’)  
30H (’0’)  
0
0 – 256 (0 – FFH)  
(See ASCII LED display code chart))  
(See ASCII LED display code chart)  
(Enabled if FA65=2)  
LED data 2 for unit  
(Enabled if FA65=2)  
0:Hz off, % off, 1:Hz on, % off  
2:Hz off, % on, 3:Hz on, % on  
56  
 
E6581222  
Block Communication Function for LED Display  
To display LED data for ASCII display that is synchronized to each digit, set data for each digit and  
validate this set data by display selection by communication (Communication Number FA65). Syn-  
chronization can also be achieved by batch writing LED data parameters after changing the following  
block communication mode parameters and by sending data by block communication.  
Writing in the block communication function will be writing in the RAMs only due to the EEPROM life  
for write operations. The LED data will reset to the initial value ““ when the power is turned  
off, in failure resetting or when standard shipment settings are set.  
Parameter Setting  
“Block communication mode (Communication Number FA80)”  
Setting range: 0, 1 (Initial value 0)  
0: Block communication parameters ( - ) is used  
1: LED display ASCII data is used (When writing, ASCII display data 1 [Communication Number  
FA70 - FA74], when reading, LED data displayed before change)  
*To validate LED data set by using LED display block communications, set standard monitor display  
selection to “communication LED select ( = ) and display selection by communication to  
“ASCII data 1 (Communication Number FA65).  
Format  
The format is the same as that used in the usual block communication mode. (For the detail infor-  
mation, see “4.1.3 Block communication transmission format”) The block communication parame-  
ters ( - ) will become invalid. Write data will become ASCII display data 1 (Commu-  
nication Number :FA70 - FA74) fixed. LED display data that is actually being output will be read  
during reading. The specification range for write operations is 0 to 5.  
Example  
Assuming:  
Communication LED selection ( = ) for standard monitor display selection.  
ASCII data 1 (Communication Number:FA65 = 1) for display selection by communication.  
LED display ASCII data (Communication Number: FA80 = 1) for the block communication mode.  
Current LED display status is display of initial value “”  
PC Inverter: 2F580505003000310032003300035A・・・“0123” display command  
Inverter PC: 2F59050000640041007400410000E7 ・・ “dAtA” displayed before change  
57  
 
E6581222  
ASCII LED display data code (00H-1FH are blank.)  
Hex Code Display Char. Hex Code  
Display  
BLANK  
BLANK  
BLANK  
BLANK  
BLANK  
BLANK  
BLANK  
BLANK  
Char. Hex Code  
Display  
Char. Hex Code  
Display  
Char.  
00H  
01H  
02H  
03H  
04H  
05H  
06H  
07H  
08H  
09H  
0AH  
0BH  
0CH  
0DH  
0EH  
0FH  
10H  
11H  
12H  
13H  
14H  
15H  
16H  
17H  
18H  
19H  
1AH  
1BH  
1CH  
1DH  
1EH  
1FH  
BLANK  
BLANK  
BLANK  
BLANK  
BLANK  
BLANK  
BLANK  
BLANK  
BLANK  
BLANK  
BLANK  
BLANK  
BLANK  
BLANK  
BLANK  
BLANK  
20H  
21H  
22H  
23H  
24H  
25H  
26H  
27H  
28H  
29H  
2AH  
2BH  
2CH  
2DH  
2EH  
2FH  
30H  
31HT  
32H  
33H  
34H  
35H  
36H  
37H  
38H  
39H  
3AH  
3BH  
3CH  
3DH  
3EH  
3FH  
SP  
40H  
41H  
42H  
43H  
44H  
45H  
46H  
47H  
48H  
49H  
4AH  
4BH  
4CH  
4DH  
4EH  
4FH  
50H  
51H  
52H  
53H  
54H  
55H  
56H  
57H  
58H  
59H  
5AH  
5BH  
5CH  
5DH  
5EH  
5FH  
BLANK  
@
A
B
C
D
E
F
G
H
I
60H  
61H  
62H  
63H  
64H  
65H  
66H  
67H  
68H  
69H  
6AH  
6BH  
6CH  
6DH  
6EH  
6FH  
70H  
71H  
72H  
73H  
74H  
75H  
76H  
77H  
78H  
79H  
7AH  
7BH  
7CH  
7DH  
7EH  
7FH  
BLANK  
`
a
b
c
d
e
f
!
#
$
%
&
g
h
i
(
)
BLANK  
BLANK  
DGP  
*
J
j
+
,
K
L
k
l
-
M
N
O
P
Q
R
S
T
U
V
W
X
Y
Z
[
m
n
o
p
q
r
DGP  
.
/
0
1
2
3
4
5
6
7
8
9
:
s
t
u
v
w
x
y
z
{
BLANK  
BLANK  
BLANK  
BLANK  
BLANK  
BLANK  
BLANK  
BLANK  
BLANK  
;
<
=
>
?
]
|
}
BLANK  
BLANK  
^
BLANK  
BLANK  
Æ
BLANK  
_
*Dots to show decimal points and other uses can be added by setting (80H) Bit 7 (highest bit).  
Example: “0.” to display “60.0” can be added by “30H + 80H = B0H.”  
58  
 
E6581222  
8.4.2.Key utilization by communication  
The VF-S11 can use the panel keys on the inverters through external communications. This func-  
tion is available with CPU version 1 (Communication Number: FE08) = 104 or higher.  
Key Monitoring Procedure  
Set panel key selection (Communication Number: FA10) to “1” to set the external key mode. How-  
ever, if communication duration is less than 1sec to avoid an inverter operation shutdown in commu-  
nication disruption, communication must always be maintained, such as monitoring key data and  
LED data to automatically reset inverter operations to inverter key operation (FA10 = 0). Set to the  
external communication key mode (FA10 = 1) to disable the key function of the inverters so that in-  
verter operation will not be affected by pressing of the keys on the inverters. By monitoring key in-  
formation, which is input by the keys on the inverters in this condition, through inverter key data  
(Communication Number; FC01), the keys on the inverters can be operated through a controller and  
other devices.  
* When the key mode is the external key mode, key operation as an inverter function is disabled and  
the inverters cannot be stopped by pressing the STOP key to stop inverter operation. Enable  
emergency stop through an external terminal or other device when an inverter stop is desired.  
Panel Key Selection (Communication Number:FA10)  
The panel key selection parameter (Communication Number; FA10) discriminates which keys are to be used, panel keys  
on the inverters or keys sent by external communications, as panel keys used in panel processing of the inverters.  
Communication No.FC01  
Panel key data of inverters  
FA10=”0”  
Communication No.FC00  
Key data for inverter  
control panel processing  
Communication No.FA11  
FA10=”1”  
External communication  
key data  
Keys on inverters enabled (Communication Number; FA10 = 0):  
Key data: Data of keys on inverters (Communication Number : FC01)  
Bit7  
Bit6  
Bit5  
Bit4  
Bit3  
Bit2  
Bit1  
Bit0  
Not  
defined  
KPP  
ENT  
MON  
DOWN  
UP  
STOP  
RUN  
“KPP” for Bit 7 indicates that panel keys are mounted on the inverters.  
External keys enabled (Communication Number; FA10 = 1):  
Key data: External key data (Communication Number: FA11)  
Bit7  
Bit6  
Bit5  
Bit4  
Bit3  
Bit2  
Bit1  
Bit0  
-
-
ENT  
MON  
DOWN  
UP  
STOP  
RUN  
Key monitoring (Communication Number : FC00):  
Information of the enabled keys on the inverters can be monitored.  
Bit7  
Bit6  
Bit5  
Bit4  
Bit3  
Bit2  
Bit1  
Bit0  
KPP  
-
ENT  
MON  
DOWN  
UP  
STOP  
RUN  
“KPP” for Bit 7 indicates that panel keys are enabled on the inverters.  
59  
 
E6581222  
9.Parameter data  
Explanation of parameters for VF-S11 series is described here. For communication purposes, see  
the parameter list on inverter's instruction manual regarding the communication number, adjustment  
range and so forth.  
Referring to the parameter list  
<Example of excerpts from the inverter’s instruction manual>  
Minimum  
Com-  
setting unit  
Default  
setting  
User  
Title  
auh  
  
  
munica-  
tion No.  
Function  
unit  
Adjustment range  
Reference  
4.1.4  
Panel/Com  
munication  
setting  
Displays  
parameters  
in  
groups of five in the reverse  
order to that in which their  
settings were changed.  
* (Possible to edit)  
-
History function  
-
-
-
-
-
-
-
0: Disabled (manual)  
1: Automatic  
Automatic ac-  
celera-  
0000  
0001  
0
0
5.1.1  
5.2  
2:Automatic (only at accelera-  
tion)  
tion/deceleration  
0:Disabled  
1:Automatic torque boost +  
autotuning  
Automatic tor-  
que boost  
2:Vector control + auto-tuning  
3:Energy saving + auto-tuning  
                       :  
                           :  
Acceleration  
0009  
S
0.1/0.1  
0.0-3200  
10.0  
5.1.2  
  
time1  
- The summary of parameter list relating to the communication is as follows.  
(1) “Title” means the display on the inverter panel.  
(2) “Communication number” is affixed to each parameter that is necessary for designating the parameter for com-  
munication.  
(3) "Adjustment range" means a data range adjustable for a parameter, and the data cannot be written outside the  
range. The data have been expressed in the decimal notation. For writing the data through the communication  
function, take the minimum setting unit into consideration, and use hexadecimal system.  
(4) "Minimum setup unit" is the unit of a single data (when the minimum unit is "-", 1 is equal to 1).  
For example, the "minimum setup unit" of acceleration time () is 0.01, and 1 is equal to 0.01s. For setting a  
data to 10 seconds, transmit 03E8h [10÷0.01=1000d=03E8h] by communication.  
60  
 
E6581222  
Command parameters  
For those parameters that contain data only in the RAM and not in the EEPROM, their data return to  
initial values when the power is turned off, in failure resetting, or when standard shipment settings  
are set. Note that parameters without data storage in the EEPROMs will be written in the RAMs  
only even if the command W (writing in EEPROMs and RAMs) is executed.  
Commands                          NOTE : Data is expressed in decimal notation.  
Communica-  
Min.  
Setting  
Unit  
Write  
During  
Operation  
Adjustment Range  
Initial  
Value  
EEP  
ROM  
tion  
Num-  
ber.(HEX)  
Function  
FA00 Command 1 (Communication) 0 to 65535  
0
0
0
yes None  
1
FA01 Operation frequency command 0 to Max. frequency 0.01Hz  
yes None  
1
()  
value (Communication)  
FA03 Operation frequency command Low-limit frequency 0.01Hz  
yes Available  
2
value (Panel)*  
() to High-limit  
frequency ()  
0 to 1  
4
Panel key selection*  
FA10  
0
0
yes None  
yes None  
FA11 External communication key  
0 to 65535  
4
data*  
FA20 Command 2 (Communication) 0 to 65535  
0
0
yes None  
yes None  
1
FA26 Command 3 (Communication) 0 to 65535  
1
3
Terminal output data*  
FA50  
FA51  
0 to 65535  
1
1
0
0
yes None  
yes None  
3
Analog output data*  
0 to 1023  
(10-bit resolution)  
FA65 Select display by communica- 0 to 2  
1
yes Available  
4
tion*  
4
Numerical display data*  
FA66  
FA67  
FA68  
0-9999  
0 to 2  
1
0
0
0
yes Available  
yes Available  
yes Available  
yes Available  
4
Decimal point position*  
4
LED data for unit 0*  
0 to 3  
FA70 ASCII display data 1  
0 to 127  
100  
(‘d’)  
4
First digit from left*  
FA71 ASCII display data 1  
Second digit from left*  
0 to 255  
0 to 255  
0 to 127  
65  
(‘A’)  
yes Available  
yes Available  
yes Available  
4
FA72 ASCII display data 1  
116  
(‘t’)  
4
Third digit from left*  
FA73 ASCII display data 1  
65  
(‘A’)  
4
Fourth digit from left*  
4
LED data for unit1*  
FA74  
0 to 3  
0
yes Available  
yes Available  
FA75 ASCII display data 2  
0 to 127  
48  
(‘0’)  
4
First digit from left*  
FA76 ASCII display data 2  
Second digit from left*  
0 to 255  
0 to 255  
0 to 127  
48  
(‘0’)  
yes Available  
yes Available  
yes Available  
4
FA77 ASCII display data 2  
48  
(‘0’)  
4
Third digit from left*  
FA78 ASCII display data 2  
48  
(‘0’)  
4
Fourth digit from left*  
4
LED data for unit 2*  
FA79  
0 to 3  
0 to 1  
0
0
yes Available  
yes Available  
4
Block communication mode*  
FA80  
1: Enable the communication command or communication frequency setting before setting these  
parameters are set. Otherwise, the parameters will not function. See “8.1 Command by com-  
munication” for the method to enable them.  
2: Note that the Communication Number for operation frequency command values (panel) is FA02  
in the VF-S7 and VF-S9 series.  
3: See “8.3 Control of input/output signals from communication” for the detail information.  
4: See “8.4 Utilizing panel (LEDs and keys) by communication” for the detail information.  
61  
 
E6581222  
Monitor parameters * These parameters are read-only (monitor-only) parameters.  
Communi-  
Title  
Function  
Monitor of key data (Effective data)  
Unit  
Remarks  
cation No.  
FC00  
FC01  
FC90  
FC91  
FD00  
FD01  
FD06  
FD07  
FD42  
FD49  
FE00  
FE01  
FE02  
FE03  
FE04  
FE05  
FE06  
FE07  
FE08  
FE09  
FE10  
FE11  
FE12  
FE13  
FE14  
FE15  
FE16  
FE18  
FE20  
FE21  
FE22  
FE26  
FE27  
FE29  
FE30  
FE35  
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
See 8.4.  
See 8.4.  
See 8.2.  
See 8.2.  
Monitor of inverter keypad data  
Trip code  
-
-
Alarm code  
-
Operation frequency (current frequency)  
Inverter status (current status)  
Input terminal information (current information)  
Output terminal information (current information)  
Inverter status2 (current status)  
Inverter status3 (current status)  
Operation frequency *5  
Inverter status *5  
0.01Hz  
-
See 8.2.  
See 8.3.  
See 8.3.  
See 8.2.  
See 8.2.  
-
-
-
-
0.01Hz  
-
See 8.2.  
Operation frequency command (actual instruction) *5  
Load current  
0.01Hz  
0.01%  
Input Voltage  
Output voltage *5  
Input terminal information *5  
Output terminal information *5  
CPU1 version  
0.01%  
0.01%  
-
See 8.3.  
See 8.3.  
-
-
EEPROM version  
-
-
Past trip 1  
See 8.2.  
See 8.2.  
See 8.2.  
See 8.2.  
Past trip 2  
-
Past trip 3  
-
Past trip 4  
-
Cumulative operation time  
Primary frequency (compensated frequency) *5  
Estimated motor operation frequency *5  
Torque  
Torque current *5  
Excitation current *5  
Analog (VIA) input frequency *5  
Motor (Electronic-thermal) load factor *5  
Inverter load factor *5  
1H  
0.01Hz  
0.01Hz  
0.01%  
0.01%  
0.01%  
0.01Hz  
1%  
1%  
Input power  
Output power *5  
0.01KW  
0.01KW  
-
-
-
Analog input value VIA  
10-bit resolution (data range: 0 to 1023)  
Analog input value VIB  
10-bit resolution (data range: 0 to 1023)  
Inverter status2  
See 8.3.  
See 8.3.  
FE36  
-
-
FE42  
FE45  
FE46  
FE49  
FE70  
FE71  
FE73  
FE75  
FE76  
FE77  
FE79  
FE80  
-
-
-
-
-
-
-
-
-
-
-
-
-
See 8.2.  
See 8.2.  
See 8.2.  
See 8.2.  
Command mode(CMOD) status  
Frequency mode(FMOD) status  
Inverter status3  
-
-
-
Rated current  
0.1A  
Rated voltage  
0.1V  
CPU2 version  
-
monitor of inverter number Hard SW  
Integral Input power  
-
0.01kWh  
0.01kWh  
-
Integral Output power  
Life alarm information  
See 8.2.  
Cumulative power-on time  
1H  
*5: If a trip occurs, data immediately before its occurrence is displayed.  
62  
 
E6581222  
Appendix 1 Table of data codes  
JIS (ASCII) codes  
Higher orde  
0
1
2
3
4
5
6
7
Lower order  
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
NUL  
TC7(DLE)  
DC1  
(SP)  
!
_
TC1(SOH)  
TC2(STX)  
TC3(ETX)  
TC4(EOT)  
TC5(ENQ)  
TC6(ACK)  
BEL  
DC2  
DC3  
DC4  
TC8(NAK)  
TC9(SYN)  
TC10(ETB)  
CAN  
FE0(BS)  
FE1(HT)  
FE2(LF)  
FE3(VT)  
FE4(FF)  
FE5(CR)  
SO  
EM  
SUB  
ESC  
IS4(FS)  
IS3(GS)  
IS2(RS)  
IS1(US)  
SI  
DEL  
CR: Carriage return  
Ex.: Code 41 = Character A  
63  
 
E6581222  
Appendix 2 Response time  
The communication response time can be calculated from data communication time and inverter  
processing time. When wishing to know the communication response time, calculate using the fol-  
lowing as a reference  
Data processing time of inverter  
Data transmission time  
Data transmission time  
PC Inverter  
Inverter PC  
Response time  
Data transmission time  
1
Data transmission time =  
×number of bytes transmitted×number of bits  
baud rate  
* Number of bits = start bit + data frame length + parity bit + stop bit  
* Minimum number of bits = 1 + 8 + 0 + 1 = 10 bits  
* Maximum number of bits = 1 + 8 + 1 + 2 = 12 bits  
<An example of the calculation of the transmission time: 19200 bps, 8 bytes, 11 bits>  
1
Data transmission time =  
×8×11= 4.6ms  
19200  
Data processing time of inverter  
Data processing time: maximum 20ms  
64  
 
E6581222  
Appendix 3 Compatibility with the communications func-  
tion of the VF-S9  
To provide consistency in communications procedures, the communications function of the VF-S11  
series of inverters has been designed based on the protocols used for the Toshiba VF-S9 series of  
inverters. With regard to compatibility, however, VF-S9 users should check the items described be-  
low before using the communications function of their inverters.  
To VF-S9 inverter users:  
Some parameters of the VF-S9 are different from those of the VF-S11 in function or adjustment  
range (upper and lower limits), even though they have the same title or the same communication  
number. So, when accessing a parameter, consult the VF- S9 inverter’s instruction manual to see if  
the parameter is identical to the corresponding parameter of the VF-S11. If the parameter differs,  
modify the computer program to suit your inverter. To avoid hazards, never copy parameters from  
one model of inverter to another.  
Comparison of communication-related items  
The table below gives a comparison of communication-related items to be kept in mind when re-  
placing VF-S9 inverters with VF-S11 inverters or when connecting VF-S9 inverters and VF-S11 in-  
verters to the same network. It does not cover any items common to the VF-S9 and VF-S11 series of  
inverters.  
Model  
VF-S9  
VF-S11  
maximum 20ms  
Reference  
Appendix 2  
Item  
Data processing time of About 8 ms  
inverter  
(This is only standard time, not guarantee  
time.)  
Notice  
Do not use communications programs written for another series of inverters.  
Even though parameters have the same title and the same communication number, they may be different  
in function. When using a parameter, always check its specifications in the instruction manual for your  
inverter. If the specifications of the parameter differ, modify the computer program to suit your inverter.  
To avoid hazards, do not copy parameters from one model of inverter to another.  
Even though parameters have the same titles and communication numbers, they may be different in  
function.  
65  
 
E6581222  
Appendix 4 Troubleshooting  
If a problem arises, diagnose it in accordance with the following table before making a service call. If  
the problem cannot be solved by any remedy described in the table or if no remedy to the problem is  
specified in the table, contact your Toshiba dealer.  
Problem  
Remedies  
Reference  
Communications will not take - Are both the computer and the inverter turned on?  
place.  
- Are all cables connected correctly and securely?  
- Are the same baud rate, parity and bit length set for every unit on the  
network?  
Chapter 7  
Section 4.1  
Section 5.1  
Chapter 9  
Inverter  
instruction  
manual  
An error code is returned.  
- Is the data transmission format correct?  
- Does the data written fall within the specified range?  
- Some parameters cannot be written during inverter operation.  
Changing should be attempted when the inverter is in halt.  
The trip  occurs.  
- Check the cable connection and the timer setting.  
Section 7.3  
Chapter 6  
The slave of " Inter-drive com- - Is a communication waiting time parameter on the master side set up?  
munication " did an err5 trip.  
Set bigger value than present value on the master's transmitting inter-  
val.  
Section 7.4  
Frequency instructions from the - Is the frequency setting mode selection parameter set to “computer”? Section 8.1  
computer have no effect.  
Commands, including the run - Is the command mode selection parameter set to “computer”?  
and stop commands, from the  
Section 8.1  
commuter have no effect.  
A change to a parameter does Some communications-related parameters do not take effect until the  
Chapter 7  
not take effect.  
inverter is reset. To make them take effect, turn the inverter off tempo-  
rarily, then turn it back on.  
The setting of a parameter was When using the TOSHIBA Inverter Protocol, use the W command to Section 4.2  
changed, but it returns to its write data into the EEPROM. If you use the P command that writes data  
original setting when the inverter into the RAMs only, the data will be cleared when the inverters are  
is turned off.  
reset.  
66E  
 

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