Toshiba Network Card MDB 100 User Manual

“MICRO” ADJUSTABLE SPEED DRIVE INTERFACE  
MDB-100  
MODBUS RTU / ASCII COMMUNICATIONS INTERFACE  
FOR THE TOSHIBA VF-S7 SERIES  
ADJUSTABLE SPEED DRIVE  
August, 1999  
ICC #10207-000  
 
Usage Precautions  
Operating Environment  
Please use the MDB-100 only when the ambient temperature of the environment into  
which the MDB-100 is installed is within the following specified temperature limits:  
Operation: -10 +40°C (+14 +104°F)  
Storage:  
-25 +65°C (-13 +149°F)  
Avoid installation locations that may be subjected to large shocks or vibrations.  
Avoid installation locations that may be subjected to rapid changes in temperature or  
humidity.  
Installation Wiring  
Do not touch charged parts of the drive such as the terminal block while the drive’s  
CHARGE lamp is lit. A charge will still be present in the drive’s internal electrolytic  
capacitors, and therefore touching these areas may result in an electrical shock.  
Always turn all drive input power supplies OFF, and wait at least 5 minutes after the  
CHARGE lamp has gone out before connecting communication cables or motor wiring.  
Route all communication cables separate from the inverter input/output power wiring.  
To avoid the possibility of electric shock due to leakage currents, always ground the  
inverter unit’s E/GND terminal and the motor. To avoid misoperation, do not connect  
the MDB-100’s SHIELD terminal to either of the above-mentioned grounds or any other  
power ground.  
When making connections between the MDB-100 and S7 drives, do not use cables  
that exceed 5 meters in length.  
For further drive-specific precaution, safety and installation information, please refer to  
the appropriate Toshiba documentation supplied with your S7 drive.  
Other Precautions  
The drive’s EEPROM has a life span of 10,000 write cycles. Do not write to the same  
holding register (other than registers 7A00 7A02 and FA00 FA02 or write-only coils)  
more than 10,000 times.  
The MDB-100’s EEPROM has a life span of 100,000 write cycles. Do not write to the  
same MDB-100 configuration register more than 100,000 times.  
Do not touch or insert a rod or any other item into the MDB-100’s case while power is  
applied, as this may lead to electrical shock or device damage.  
Commission the disposal of the MDB-100 to a specialist.  
Do not assign the same network address to more than one MDB-100 station in the  
same network. For a detailed explanation of station addressing, refer to section 8.  
When the MDB-100 is configured to receive its Modbus RTU / ASCII station address  
from the drive on Channel A, be sure to reset the MDB-100 if the inverter number  
parameter on the drive on Channel A is changed. Refer to section 8 for more  
information.  
Because the MDB-100 derives its control power from the drive connected to Channel  
A, removing power from that drive will also cause the MDB-100 to lose power, even if  
power is still applied to the drive connected to channel B.  
When only 1 drive is connected to the MDB-100, it must be connected to Channel A.  
2
 
TABLE OF CONTENTS  
1.  
2.  
3.  
4.  
5.  
6.  
Interface Package Diagram..................................................................4  
Feature Summary..................................................................................5  
Installing The MDB-100 ........................................................................7  
Equipment Specifications....................................................................9  
Maintenance And Inspection ...............................................................9  
Storage And Warranty ........................................................................10  
6.1  
6.2  
Storage ..........................................................................................................10  
Warranty ........................................................................................................10  
7.  
8.  
9.  
Network Characteristics Configuration ............................................11  
Modbus Station Address Selection...................................................13  
Modicon Programming.......................................................................15  
9.1  
9.2  
9.3  
9.4  
Supported Modbus Commands......................................................................15  
Programmable Pointer Register Function.......................................................15  
Loss of Communications Timer Function .......................................................16  
Response Delay Timer Function ....................................................................17  
10. Modbus Programming Interface........................................................19  
10.1  
10.2  
10.3  
10.4  
Overview.....................................................................................................19  
Holding Registers .......................................................................................24  
Write-Only Coils..........................................................................................31  
Read-Only Coils..........................................................................................32  
11. Notes....................................................................................................33  
3
 
1. Interface Package Diagram  
Case mounting hole  
Network connector  
(TB1)  
Switch SW2  
(local address)  
Switch SW1  
(network  
characteristics)  
Drive “B” connector  
Drive “A” Connector  
Case mounting hole  
Note that the above diagram shows the MDB-100 with its cover removed. However,  
it is only necessary to remove the cover in order to initially configure the MDB-100.  
Once configured, the cover should be reinstalled to prevent damage and dust  
accumulation.  
4
 
2. Feature Summary  
The MDB-100 interface provides a wide array of network data access and drive  
control features. Combined with the flexible data access methods and universal  
acceptance of the Modbus network, this allows powerful networked control and  
monitoring systems to be designed. Some of the main features provided by the  
MDB-100 which allow for this control and configurability are briefly described here:  
Protocol  
Modbus RTU and ASCII as specified in AEG Schneider Automation specification  
Modicon Modbus Protocol Reference Guide PI-MBUS-300 Rev. J”.  
Implementation  
Modbus network is optically isolated RS485 half-duplex 2-wire + shield physical layer,  
allowing connection of up to 32 units (masters and slave MDB-100 units) to a single  
bus trunk.  
Network Baud Rates  
Supports all Modbus RTU/ASCII baud rates from 300 baud to 38.4kbaud.  
Drive Connections  
The MDB-100 provides support for simultaneous connection of 2 VF-S7 drives. Both  
drives share a common Modbus station address. By supporting 2 drives per  
interface, the maximum number of drives that can be connected to 1 Modbus  
network segment without requiring repeaters increases from 31 (31 drives + 1  
master) to 62 (31 MDB-100 units + 1 master).  
Power Supply  
Self-contained. Powered directly from the drive connected to the Channel A  
communications port. No external power supply devices or connections are required.  
Isolation  
The MDB-100 has 3 separate isolated circuitry sections. Each drive is fully optically  
isolated from each other, and both drives are optically isolated from the Modbus  
network. By using optically isolated connections to the drives and the Modbus  
network, noise immunity is greatly improved and grounding differential problems  
become a thing of the past.  
Drive AutoScan Algorithm  
Connections to the drives are automatically established and continuously monitored.  
No drive configuration needs to be performed to connect the MDB-100 and  
communicate via the Modbus RTU or ASCII network. Just plug it in – it’s that simple.  
5
 
Programmable Pointer Registers  
32 programmable pointer registers are provided for user definition. By using these  
registers, frequently-accessed drive parameters that may be scattered throughout the  
register map can be grouped together and accessed with a single holding register  
read or write command.  
Response Delay Function  
A programmable network response delay function is available which forces the MDB-  
100 to wait a certain minimum time before generating network responses to Modbus  
commands. This function is useful when equipment such as radio modems (which  
require a finite time to switch from receive to transmit mode) are used as Modbus  
network bridges.  
Network Watchdog  
A network watchdog function is available to detect if communication with the master  
controller has been interrupted. If an interruption is detected, several different drive  
actions can be programmed to ensure that the process under control can be safely  
and automatically driven to a desired state.  
Modbus Network Connector  
The network interface is a 3-position pluggable terminal block with the following  
signals provided:  
Pin Number  
Function  
1
2
3
Modbus network RS485 “A” terminal  
Modbus network RS485 “B” terminal  
Network shield connection point  
No network termination is provided on the MDB-100. Be sure to install proper RS485  
network termination on the MDB-100 units that exist on the extreme endpoints of the  
network bus. This can be accomplished by placing a 121(±5%), 1/2W resistor  
across the A and B network terminals of those 2 units.  
Drive Network Connectors  
Uses standard RJ-45 style 8-pin modular connectors. Any standard category-5  
ethernet cable (found in most electronics and office-supply stores) 5 meters or less in  
length can be used to connect the MDB-100 to the drives.  
Supported Commands  
The MDB-100 presents and receives drive data via Modbus commands 01 (read coil  
status), 03 (read holding registers), 05 (force single coil), 06 (preset single register)  
and 16 (preset multiple registers).  
6
 
3. Installing The MDB-100  
The MDB-100 connects to each drive via the drive’s communication port, located on  
the right-hand side of the drive enclosure under a small snap-on cover. Although no  
drive parameters need to be configured in order to use the MDB-100, it is  
advantageous to check that the drive’s communication data rate is set to its  
maximum speed. Because the MDB-100 will communicate to each drive only at the  
drive’s configured data rate, this will provide the fastest response time for drive-to-  
Modbus network data transfers. For information on checking the drive’s  
communication data rate, refer to the appropriate manual supplied with your drive.  
Note that each drive’s communication data rate settings are independent of the  
Modbus network data rate, which is configured solely by the Modbus network  
characteristics switch (refer to section 7). Also note that the data communication  
parameters of each drive are handled independently; the drive connected to Channel  
A may simultaneously communicate to the MDB-100 at completely different baud  
rates, parity settings, etc. than the drive connected to Channel B.  
Installation of the MDB-100 Modbus RTU / ASCII interface should only be performed  
by a qualified technician familiar with the maintenance and operation of the  
connected drives. To install the MDB-100, complete the following steps:  
1.  
2.  
CAUTION! Verify that all input power sources to the drives to be  
connected have been turned OFF and are locked and tagged out.  
DANGER!  
Wait at least 5 minutes for the drive’s electrolytic  
capacitors to discharge before proceeding to the next step. Do not touch any  
internal parts with power applied to the drive, or for at least 5 minutes after  
power to the drive has been removed. A hazard exists temporarily for  
electrical shock even if the source power has been removed. Verify that the  
CHARGE LED has gone out before continuing the installation process.  
3. Attach the MDB-100 to a sturdy, unmovable object (such as a wall) via the 2 case  
mounting holes located on the tabs at the top and bottom of the enclosure.  
4. Remove the drive’s communication port cover, located on the right-hand side of  
the drive (as viewed when facing the drive), by pressing against the side of the  
cover while sliding it toward the front of the drive. Do not discard this cover, as it  
should be reinstalled if the MDB-100 unit is ever disconnected from the drive.  
5. Connect the drive’s communication port to Channel A of the MDB-100 with the  
communication cable (communication cable is not included with the MDB-100 kit).  
When choosing cables for this connection, standard 24 AWG category-5 (CAT 5)  
unshielded twisted-pair (UTP) 8-conductor cables found in ethernet networks in  
most office environments can be used. The maximum allowable length for these  
cables is 5 meters. Although there are many varieties and styles of CAT-5 UTP  
cables available, ICC strongly recommends using only high-quality cables from  
reputable manufacturers to guarantee optimal noise immunity and cable  
longevity. Ensure that each end of the cable is fully seated into the modular  
connector, and route the cable such that it is located well away from any drive  
input power or motor wiring. Also take care to route the cable away from any  
sharp edges or positions where it may be pinched.  
7
 
6. Repeat steps 1, 2, 4 and 5 above to connect another drive to Channel B on the  
MDB-100, if desired.  
7. Remove the cover of the MDB-100 by removing the 4 cover screws.  
8. Configure the Modbus network characteristics such as baud rate, parity etc. via 8-  
position DIP switch SW1 (refer to section 7). If the MDB-100’s station address is  
to be configured locally, select the desired station address via 8-position DIP  
switch SW2 (refer to section 8).  
9. Reinstall the cover of the MDB-100.  
10. Connect the Modbus network cable (2 signal wires + shield) to the 3-position  
pluggable terminal block marked “Network” on the left-hand side of the MDB-100.  
The terminal ordering for the network cable wiring is as shown in Figure 1.  
A
B
SHIELD  
Figure 1: Modbus RS485 Network Terminal Wiring  
Note that some RS485 equipment manufacturers reference the “A” and “B”  
terminals reversed from the MDB-100’s hardware, and some manufacturers use  
other labels, such as “+” and “-“. If you cannot communicate with the MDB-100  
after installation, try switching the “A” and “B” signal wires - swapped signal wires  
are the most common cause of communication difficulties in new RS485 network  
installations.  
Ensure that the Modbus network cable is tightly screwed into the terminals, and  
route the cable such that it is located well away from any drive input power or  
motor wiring. Also take care to route all cables away from any sharp edges or  
positions where they may be pinched.  
11. Take a moment to verify that the MDB-100 and all network cables have sufficient  
clearance from drives, motors, and power-carrying electrical wiring.  
12. Turn the power sources to all connected drives ON, and verify that the drives  
function properly. If the drives do not appear to power up, or do not function  
properly, immediately turn power OFF. Repeat steps 1 and 2 to remove all  
power from the drives. Then, verify all connections. Contact ICC or your local  
drive distributor or manufacturer for assistance if the problem persists.  
8
 
4. Equipment Specifications  
Item  
Specification  
Indoors, less than 1000m above sea level, do not  
expose to direct sunlight or corrosive / explosive gasses  
Operating Environment  
Operating Temperature  
Storage Temperature  
Relative Humidity  
Vibration  
-10 +40°C (+14 +104°F)  
-25°C +65°C (-13 +149°F)  
20% 90% (without condensation)  
5.9m/s2 {0.6G} or less (10 55Hz)  
Grounding  
SHIELD terminal connected to isolated network ground  
via 200resistance.  
Cooling Method  
Self-cooled  
5. Maintenance And Inspection  
Preventive maintenance and inspection is required to maintain the MDB-100 Modbus  
interface in its optimal condition and to ensure a long operational lifetime. Depending  
on usage and operating conditions, perform a periodic inspection once every three to  
six months. Before starting inspections, always turn off all power supplies to  
connected drives, and wait at least five minutes after each drive’s “CHARGE” lamp  
has gone out.  
DANGER!  
Do not touch any internal parts with power applied  
to the drives, or for at least 5 minutes after power to the drives has been  
removed. A hazard exists temporarily for electrical shock even if the source  
power has been removed.  
Inspection Points  
Check that the Modbus network connector screws and terminal block plug are not  
loose. Tighten if necessary.  
Check that the drive communication cables are not loose. Reinsert if necessary.  
Visually check all wiring and cables for damage. Replace as necessary.  
Clean off any accumulated dust and dirt.  
If use of the MDB-100 is discontinued for extended periods of time, apply power  
at least once every two years and confirm that the unit still functions properly.  
Do not perform hi-pot tests on the drives or MDB-100 interface, as they may  
damage the units.  
Please pay close attention to all periodic inspection points and maintain a good  
operating environment.  
9
 
6. Storage And Warranty  
6.1 Storage  
Observe the following points when the MDB-100 interface is not used immediately  
after purchase or when it is not used for an extended period of time.  
Avoid storing the MDB-100 in places that are hot or humid, or that contain large  
quantities of dust or metallic dust. Store the MDB-100 in a well-ventilated  
location.  
When not using the MDB-100 interface for an extended period of time, apply  
power at least once every two years and confirm that it still functions properly.  
6.2 Warranty  
The MDB-100 Modbus RTU / ASCII Communications Interface is covered under  
warranty by ICC for a period of 12 months from the date of installation, but not to  
exceed 18 months from the date of shipment from the factory. For further warranty  
or service information, please contact Industrial Control Communications or your  
local distributor.  
10  
 
7. Network Characteristics Configuration  
The MDB-100 interface board uses an 8-position DIP switch (labeled SW1) to  
configure the Modbus network communication characteristics. The switch settings  
are only read during initialization, so if a change is made to any of the switches on  
SW1, the MDB-100 must be reset in order to enable the new settings. The various  
configuration settings of switch SW1 are as follows:  
Communication Method:  
SW1 #  
Function  
1
OFF  
ON  
Modbus RTU (factory default)  
Modbus ASCII  
Baud Rate:  
SW1 #  
Function  
4
3
2
OFF OFF OFF 300 baud  
OFF OFF  
ON 600 baud  
OFF 1200 baud  
ON 2400 baud  
OFF  
OFF  
ON  
ON  
ON  
OFF OFF 4800 baud  
ON  
ON  
OFF  
ON  
ON 9600 baud (factory default)  
OFF 19.2 kbaud  
ON  
ON  
ON 38.4 kbaud  
Parity:  
SW1 #  
Function  
6
5
OFF OFF even parity (factory default)  
OFF  
ON  
ON odd parity  
OFF no parity (2 stop bits)  
ON  
ON no parity (1 stop bit) - applies only to RTU mode  
Protocol:  
SW1 #  
7
Function  
OFF  
ON  
Modicon Modbus (factory default)  
DO NOT SELECT (reserved for future expansion)  
Station Number Origin: (refer to section 8)  
SW1 #  
Function  
8
OFF  
ON  
Drive A’s inverter number parameter (factory default)  
Switch SW2 address setting  
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A Note About Modbus Communication Formats  
According to the Modicon Modbus Protocol Reference Guide, the specifications for  
both Modbus ASCII and RTU communication modes are as follows:  
ASCII Mode  
Coding System: ...... Hexadecimal, ASCII characters 0 9, A F  
One hexadecimal character contained in each ASCII character  
of the message  
Bits per Byte: .......... 1 start bit  
7 data bits, least significant bit sent first  
1 bit for even/odd parity; no bit for no parity  
1 stop bit if parity is used; 2 bits if no parity  
Error Check Field:... Longitudinal Redundancy Check (LRC)  
RTU Mode  
Coding System: ...... 8-bit binary, hexadecimal 0 9, A F  
Two hexadecimal characters contained in each 8-bit field of the  
message  
Bits per Byte: .......... 1 start bit  
8 data bits, least significant bit sent first  
1 bit for even/odd parity; no bit for no parity  
1 stop bit if parity is used; 2 bits if no parity  
Error Check Field:... Cyclical Redundancy Check (CRC)  
According to the Modicon Modbus specification, therefore, the number of bits per  
byte in ASCII mode is 1 start + 7 data + 1 parity + 1 stop (if parity is used), or 1 start  
+ 7 data + 2 stop (if parity is not used). The ASCII data frame is therefore fixed at 10  
bits per byte. Similarly, the number of bits per byte in RTU mode is 1 start + 8 data +  
1 parity + 1 stop (if parity is used), or 1 start + 8 data + 2 stop (if parity is not used),  
resulting in an RTU data frame that is fixed at 11 bits per byte.  
In addition to these standard specified data frame sizes, the MDB-100 interface  
offers an optional configuration of providing for only 1 stop bit when no parity is  
selected in the RTU communication mode. As indicated on the previous page, by  
setting SW5 and SW6 both to “ON”, the RTU data frame size is modified to consist of  
1 start + 8 data + 1 stop bit = 10 bits per byte. Please note that this setting is only  
valid when RTU mode is selected; if SW5 and SW6 are both set to “ON” when ASCII  
mode is selected, the MDB-100 will halt and will not communicate with the Modbus  
network.  
12  
 
8. Modbus Station Address Selection  
The MDB-100 interface provides two different methods for configuring the node’s  
station address. One method uses the inverter number parameter read from the  
drive connected to Channel A, and the other method uses a locally-configured  
address, set by DIP switches on the MDB-100 control PCB.  
When shipped from the factory, the MDB-100’s default configuration is to use the  
value set in the inverter number parameter (F802) of the drive connected to Channel  
A as its Modbus network station address. Depending on the software version of the  
drive connected to channel A, this parameter is adjustable from either 031 or 063.  
Since Modbus addressing allows for station addresses to be set from 1 247,  
however, there may be instances where the upper limit of the inverter number  
parameter setting is not high enough to support a desired address (for example, if  
you want to set a MDB-100 station to address 95) In these instances, the locally-  
configured station address can be used, which supports the full Modbus station  
addressing range of 1 247.  
Note that the Modbus protocol specification states that allowable station addresses  
are 1 to 247. If a station address is configured with 0 (inverter number or local  
address) or 248 to 255 (local address only), the MDB-100 will halt and will not  
communicate with the network. To resolve this situation, correct the station number  
and reset the MDB-100. Pay particular attention to this point, as the default factory  
setting of the drive’s “inverter number” parameter is 0, which therefore must be  
changed if it is to be used as the MDB-100’s station number.  
The selection of whether to use the drive on Channel A’s inverter number parameter  
or the locally-set station address is performed by switch SW1 #8. When SW1 #8 is  
OFF (factory default setting), the MDB-100’s station address is retrieved from drive  
A’s inverter number parameter. When SW1 #8 is ON, the MDB-100’s station  
address is obtained by the binary number set via DIP switch SW2 (factory default  
address setting = 1).  
SW1 #8  
OFF  
Meaning  
Drive A’s inverter number parameter (factory default)  
Switch SW2 address setting  
ON  
The values of switches SW1 and SW2 are read only during MDB-100 initialization.  
Therefore, if any of these switch settings are changed, the MDB-100 must be  
reinitialized to be made aware of the change by:  
1. Momentarily powering-off drive A (from which the MDB-100 receives power), or  
2. Issuing a reset command to the MDB-100 via the Modbus network by writing to  
holding register 0x6111NOTE 1, NOTE 2. Writing data 0x5A5A will reset the MDB-100,  
writing data 0xFEBA will reset the MDB-100 and return all MDB-100 –specific  
configuration registers (such as response delay time, loss of communications  
timeout time etc.) to their factory default values, and writing any other data will  
cause the MDB-100 to return a Modbus “ILLEGAL DATA VALUE” exception  
response (exception code 03). Reading from register 0x6111 will always return a  
value of 0.  
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Holding  
Register  
Write Data  
Meaning  
Reset the MDB-100  
0x5A5A  
Reset the MDB-100 and return MDB-100  
configuration registers to factory default  
values.  
0xFEBA  
0x6111  
Return “ILLEGAL DATA VALUE”  
exception  
Any other value  
NOTE 1: Throughout this document, hexadecimal (base 16) numbers will be  
represented by a preceding “0x” or by a trailing “H” designator, decimal  
(base 10) numbers will be represented by a trailing subscripted “10”  
designator, and binary (base 2) numbers will be represented by a trailing  
“B” designator. Binary numbers will always be written with their most  
significant bit (MSB) at the left, and their least significant bit (LSB) to the  
right (next to the “B”).  
For example, 0x6111 = 6111H = 2484910 = 0110 0001 0001 0001B.  
NOTE 2: The Modbus specification lists two addresses for each holding register (4X  
reference) and coil (0X reference). These are referred to as the  
“addressed as” and “known” as values. In all instances, registers and  
coils are addressed starting at zero; i.e. register 1 is addressed as 0, and  
coil 15 is addressed as 14, etc. Throughout this document, all addresses  
given for coils and holding registers will be their “addressed as” values  
unless otherwise specified. In other words, add 1 to the register/coil  
address given to obtain its “known as” value. For example, the S7 drive’s  
inverter number parameter is 0802H (= 0x0802 = 205010.) Therefore, this  
register would be “known as” 2051. Refer to the Modbus Protocol  
Reference Guide for a more detailed explanation of this issue.  
The station address set via switch SW2 must be set using binary encoding. In this  
case, SW2 #1 represents bit #0 of the address, and SW2 #8 represents bit #7.  
When one of the DIP switches of SW2 is turned ON, the corresponding address bit is  
1, and when one of the switches is turned OFF, the corresponding address bit is 0.  
For example, if an address of 16910 is desired, the conversion calculation would be  
performed as follows:  
16910 = 0xA9 = 1010 1001B, therefore switches SW2 #1, #4, #6 and #8 should be  
ON, and #2, #3, #5 and #7 should be OFF.  
Some more address configuration examples (factory default setting = 1):  
Address  
(Decimal)  
1 (min)  
63  
200  
247 (max)  
Address  
(Hex)  
0x01  
0x3F  
0xC8  
Address  
(Binary)  
0000 0001B  
0011 1111B  
1100 1000B  
1111 0111B  
“ON”  
Switches  
#1  
#1 #6  
#4, #7, #8  
“OFF”  
Switches  
#2 #8  
#7, #8  
#1 #3, #5, #6  
#4  
0xF7  
#1 #3, #5 #8  
14  
 
9. Modicon Programming  
9.1 Supported Modbus Commands  
The MDB-100 interface supports 5 Modbus commands: command 1 (0x01: read coil  
status), command 3 (0x03: read holding registers), command 5 (0x05: force single  
coil), command 6 (0x06: preset single register) and command 16 (0x10: preset  
multiple registers). Not all registers or coils support all commands (for example,  
read-only registers cannot be written to with a command 16). For more information,  
refer to section 10. The following limits represent the maximum number of registers  
and coils that can be read/written in one packet transaction:  
RTU Mode  
Read Max  
32 coils  
125 registers  
N/A  
RTU Mode  
Write Max  
N/A  
ASCII Mode  
Read Max  
32 coils  
61 registers  
N/A  
ASCII Mode  
Write Max  
N/A  
Command  
1
3
N/A  
N/A  
5
1 coil only  
1 register only  
123 registers  
1 coil only  
1 register only  
59 registers  
6
N/A  
N/A  
16  
N/A  
N/A  
9.2 Programmable Pointer Register Function  
MDB-100 registers 0x6000 0x601F and 0x6080 0x609F are used as  
programmable pointer and data registers, respectively. Registers 0x6000 0x601F  
(32 total) are used to define other register addresses from which you would like to  
read or write, and registers 0x6080 0x609F (32 total) are the actual registers used  
to access the data located at the register addresses defined in registers 0x6000 ∼  
0x601F. For example, if you would like to continuously read the data from registers  
0xFE03, 0xFE04, 0xFE06, and 0xFD00, the standard register configuration would  
require 3 read commands to be issued: one reading 2 registers starting at register  
0xFE03, one reading 1 register starting at register 0xFE06, and one reading 1  
register starting at register 0xFD00. To conserve network bandwidth and speed  
processing time, however, the programmable pointer registers can be used to allow  
the same information to be accessed, but by only issuing 1 command which reads 4  
registers.  
To configure this function, program as many registers as necessary (up to 32) in the  
range 0x6000 0x601F with the register numbers of the registers you would like to  
continuously access. In this example, we would set register 0x6000 to 0xFE03 (the  
first register number we want to access), register 0x6001 to 0xFE04, register 0x6002  
to 0xFE06, and register 0x6003 to 0xFD00. The data located at these drive status  
registers can then be obtained by accessing the corresponding registers in the range  
0x6080 0x609F (data register 0x6080 corresponds to address register 0x6000,  
data register 0x6081 corresponds to address register 0x6001, etc.) Therefore, the 4  
registers that are to be monitored can now be accessed simply by issuing 1 holding  
register read command with a length of 4 starting from register 0x6080. The returned  
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data will be the data obtained from registers 0xFE03, 0xFE04, 0xFE06, and 0xFD00  
(in that order).  
Note that the settings of the programmable address registers (0x6000 0x601F) are  
stored in the MDB-100’s nonvolatile EEPROM. Therefore, do not write to any of  
these registers more than 100,000 times. Typically, these registers would only be  
written to once, when the interface and Modbus network are first commissioned.  
When the programmable pointer registers are modified, the changes are made  
effective in the MDB-100 immediately (the MDB-100 does not need to be reset for the  
changed values to take effect).  
9.3 Loss of Communications Timer Function  
A configurable "loss of communications" (network watchdog) timer function is  
provided, which can detect communication losses and perform certain actions if a  
valid packet is not received and processed within a set time period.  
MDB-100 register 0x6100 sets the loss of communication time value (adjustable from  
100ms to 60.000s in 1ms increments, factory setting = 10.000s). If a valid  
(exception-free) reception-response or exception-free broadcast does not take place  
within this time limit, the timer will expire. If the timer expires, 5 possible actions can  
occur for each connected drive, as set by the value of registers 0x6101 and 0xE101  
(loss of communications action for drive A and drive B, respectively):  
Register  
Action Taken Upon Timeout  
0x6101 / 0xE101  
Setting  
0 (default)  
No action: ignore timeout  
Decelerated stop  
1
2
3
4
Coast stop  
Trip “E” (emergency off)  
Run a preset speed  
When a network timeout is detected, the timeout action is performed. When  
communications are once again reestablished, the timer function is automatically  
reset and will once again begin to monitor network receptions. However, any actions  
performed as a result of the timeout occurring will not be reversed by the MDB-100  
once communications are reestablished; the Modbus master’s application must  
explicitly modify the affected conditions to fully return the drive to its previous state.  
Setting 0 is the default setting; when a communications timeout occurs, no action will  
be taken.  
For setting 1 (decelerated stop), the drive will stop in a controlled manner if it was  
running. This action clears bit #10 in the selected drive’s communication command  
bit structure (register 0x7A00 / 0xFA00 - also the same data as write-only coil #10 /  
#26). Note that the “communication command valid” bit of register 0x7A00 / 0xFA00  
(bit #15 of each register, or write-only coil #15 / #31) must already be set by the  
master application for this timeout action to control the drive.  
16  
 
For setting 2 (coast stop), the drive will coast stop (free run) if it was running. This  
action clears bit #10 in the selected drive’s communication command bit structure  
(register 0x7A00 / 0xFA00 - also the same data as write-only coil #10 / #26) and sets  
bit #11 (same as coil #11 / #27). Note that the “communication command valid” bit of  
register 0x7A00 / 0xFA00 (bit #15 of each register, or write-only coil #15 / #31) must  
already be set by the master application for this timeout action to control the drive.  
For setting 3 (trip “emergency off”), the drive will trip “E”. This action clears bit #10 in  
the selected drive’s communication command bit structure (register 0x7A00 / 0xFA00  
- also the same data as write-only coil #10 / #26) and sets bit #12 (same as coil #12 /  
#28). Note that in this case the setting of the “communication command valid” bit of  
register 0x7A00 / 0xFA00 (coil #15 / #31) is irrelevant; the drive will trip regardless of  
its value.  
Setting 4 (run a preset speed) will modify the settings of bits #0 #3 of the selected  
drive’s communication command bit structure (register 0x7A00 / 0xFA00 - also the  
same data as write-only coils #0 #3 / #16 #19). The preset speed that is to run is  
selected by MDB-100 registers 0x6102 (for drive A) and 0xE102 (for drive B). The  
possible adjustment range for these registers is 0 15, corresponding to “no action”  
(0) and each of the drive’s 15 possible preset speeds (1 15). Note that the  
“communication command valid” and “run/stop” bits of register 0x7A00 / 0xFA00 (bits  
#15 and #10 of each register, or write-only coil #15 & #10 / #31 & #26) must already  
be set by the master application for this timeout action to control the drive. USE  
EXTREME CAUTION WHEN SELECTING THIS SETTING! Thoroughly verify that  
there is no possibility of personal injury or equipment damage due to the inverter  
running at the selected speed, especially with the possibility that network  
communications may not be able to be reestablished in a timely fashion (depending  
on what network condition caused the communications timeout in the first place).  
Note that the settings of the timeout time, timeout action and timeout preset speed  
configuration registers are stored in the MDB-100’s nonvolatile EEPROM. Therefore,  
do not write to any of these registers more than 100,000 times. Also note that when  
the setting of any one of these configuration registers is changed, the MDB-100 must  
be reset for the new value to be activated and the change to take effect.  
9.4 Response Delay Timer Function  
Register 0x6110 contains the setting for a response delay timer function. This  
function is useful for applications where it may not be desirable for the MDB-100  
interface to respond immediately to the network after a read/write request, such as  
when a radio modem that must be switched from receive mode to transmit mode is  
being used.  
The response delay timer is adjustable in 1ms increments from 0s to 2.000s (factory  
setting = 0s). A response delay of 0s means that there is no delay; response packets  
will be sent by the MDB-100 as soon as they are available. The delay timer starts  
when a complete packet is received by the MDB-100, and a response will not be sent  
until the timer has expired (at a minimum). Note that this time value only sets a  
minimum response delay value - depending on the quantity and location of registers  
read / written, much more time may actually be required before a complete response  
is formulated and ready to be returned to the network.  
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The response delay timer value is read only upon MDB-100 initialization, requiring  
the unit to be reset if the value is changed for the new value to take effect. This  
setting is also non-volatile (written to the MDB-100’s EEPROM). Therefore, do not  
write to this register more than 100,000 times.  
18  
 
10. Modbus Programming Interface  
10.1 Overview  
Three types of Modbus data may be accessed via the MDB-100. These are holding  
registers (4x reference), read-only coils (0x reference) and write-only coils (0x  
reference). In order to access 2 drives within the allocated holding register map  
(0x0000 0xFFFF), each drive is assigned one half of the register space.  
Drive A occupies the area from register 0x0000 to 0x7FFF. This area also contains  
several network and drive configuration registers (such as the programmable pointer  
and data registers, network timeout registers, etc.) that reside within the MDB-100  
only. The registers which the MDB-100 uses for these functions are not accessible in  
the drive. Currently, these registers are unoccupied in the drive, and therefore no  
loss of access to any drive parameters exists. Most of the registers for drive A are  
mapped to the exact same “communication number” that they are allocated in the S7  
drive by Toshiba. Refer to the VF-S7 Serial Communications Option Manual for a list  
of communication numbers. The only exception to this direct mapping are the  
registers that occupy communication numbers larger than 0x8000. For these  
parameters, their corresponding Modbus holding registers can be obtained by setting  
the MSB (bit #15) of their communication number to 0.  
For example, the communication number for drive A’s bus voltage parameter is  
0xFE04 (1111 1110 0000 0100B). Setting bit #15 to 0, we obtain the binary value  
0111 1110 0000 0100B, or 0x7E04. Reading from Modbus holding register 0x7E04  
(“known as” 0x7E05), therefore, will return the bus voltage from drive A.  
Drive B occupies the area from register 0x8000 to 0xFFFF. This area also contains  
the MDB-100 –specific drive configuration registers that correspond to those  
available for drive A. Most of the registers for drive B are not mapped to the exact  
same “communication number” that they are allocated in the S7 drive by Toshiba.  
For these parameters, their corresponding Modbus holding registers can be obtained  
by setting the MSB (bit #15) of their communication number to 1.  
For example, the communication number for drive B’s deceleration time #1  
parameter is 0x0010 (0000 0000 0001 0000B). Setting bit #15 to 1, we obtain the  
binary value 1000 0000 0001 0000B, or 0x8010. Writing to Modbus holding register  
0x8010 (“known as” 0x8011), therefore, will modify the deceleration time #1  
parameter for drive B.  
The only exception to this mapping modification requirement for drive B are the  
registers that occupy communication numbers larger than 0x8000. For these  
parameters, the communication numbers given in the VF-S7 Serial Communications  
Option Manual correspond exactly to their assigned “addressed as” holding registers  
(for example, holding register 0xFE10 will access the past trip #1 value from drive B).  
Refer to Figure 2 on page 20 for a graphical representation of the holding register  
mapping that exists in the MDB-100 Modbus interface.  
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Figure 2: MDB-100 Holding Register Mapping  
MDB-100  
Holding  
Register Map  
Drive A Comm.  
Numbers  
Drive B Comm.  
Numbers  
FFFF  
FFFF  
Drive B registers  
F000  
EFFF  
F000  
EFFF  
Channel B registers  
Drive B registers  
E000  
DFFF  
E000  
DFFF  
D000  
CFFF  
D000  
CFFF  
C000  
BFFF  
C000  
BFFF  
B000  
AFFF  
B000  
AFFF  
Drive B registers  
A000  
9FFF  
A000  
9FFF  
9000  
8FFF  
9000  
8FFF  
8000  
7FFF  
8000  
7FFF  
Drive A Registers  
7000  
6FFF  
7000  
6FFF  
MDB-100 registers  
Channel A registers  
Drive A registers  
6000  
5FFF  
6000  
5FFF  
5000  
4FFF  
5000  
4FFF  
4000  
3FFF  
4000  
3FFF  
3000  
2FFF  
3000  
2FFF  
Drive A registers  
2000  
1FFF  
2000  
1FFF  
1000  
0FFF  
1000  
0FFF  
0000  
0000  
Note: Inaccessible (currently unused) areas are shaded.  
20  
 
Table 1: Holding Register Mapping General Overview  
Factory  
Setting  
Adjustment  
Register #  
Name / Function  
Range  
--  
--  
Access drive A  
0000 05FF  
Any value other than  
Non-volatile programmable  
pointer registers (32 total  
available)  
0000  
(all 32)  
6000 601F or  
6080 609F  
6000 601F  
Programmable pointer data  
registers (each register  
corresponds to same one in  
Depends on  
registers pointed to  
--  
6080 609F  
6000 601F range)  
10000  
(10.000s)  
100 60000  
(0.100s 60.000s)  
0= do nothing  
Modbus network loss of  
communications timeout time  
6100  
1= decelerated stop  
2= coast stop  
3= trip “E”  
4= run a preset  
speed  
Modbus network loss of  
communications timeout action  
for Drive A  
6101  
0
Loss of communications preset  
speed for Drive A (effective only  
when register 6101 is set to 4)  
6102  
6110  
0
0
0 15  
0 2000  
(0ms 2.000s)  
0x5A5A: reset only  
0xFEBA: return  
Modbus network response delay  
time  
--  
Reset/reinitialize MDB-100  
interface  
6111  
(read always MDB-100 config  
returns 0)  
registers to factory  
setting values  
Version = MSB  
Revision = LSB  
--  
MDB-100 firmware  
version/revision (read-only)  
6112  
--  
--  
--  
Access drive A  
6113 6FFF  
7000 7FFF  
Access drive A communication  
numbers F000 FFFF  
Access drive B communication  
numbers 0000 6100  
Modbus network loss of  
communications timeout action  
for Drive B  
--  
--  
--  
0
8000 E100  
Same as register  
6101  
E101  
Loss of communications preset  
speed for Drive B (effective only  
when register E101 is set to 4).  
E102  
0
0 15  
Access drive B registers 6103 ∼  
--  
--  
--  
--  
E103 EFFF  
6FFF  
Access drive B  
F000 FFFF  
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Sections 10.2 to 10.4 specify the communication number holding register  
mappings and coil definitions for all current VF-S7 communication numbers. Note  
that the parameters and coils shown are those available at the time of this manual  
printing; if new parameters are added by the drive manufacturer and/or parameter  
adjustment limits are modified, etc., this will not affect the operation of the MDB-100  
interface. As all available parameters, adjustment ranges etc. are determined solely  
by the connected drive, and not the MDB-100, future drive firmware versions will  
automatically be supported by the MDB-100 with no software upgrades required.  
In the case of any discrepancies between the information in the following tables and  
the drive’s documentation, the drive’s documentation should always be followed.  
Some other important coil and holding register notes:  
Remember that all registers and coils indicated in the following sections are  
shown with their “addressed as” coil & register numbers. These coil &  
register numbers are 1 less than their “known as” numbers.  
A value indicated by “*” in the following tables indicates that the setting is  
dependent on the connected drive’s capacity. Refer to the drive’s  
documentation for these values.  
If frequency command values (registers 0x7A01 / 0xFA01) higher than each  
respective drive’s FH or UL parameters are written, the write will be  
acknowledged, but the drive will not change its frequency to this invalid value.  
All writes to holding registers use the drive’s RAM / EEPROM data write (“W”)  
command except for registers 0x7A00 0x7A02 and 0xFA00 0xFA02,  
which use the drive’s RAM data write (“P”) command.  
If an attempt is made to access non-existent registers or coils, an ILLEGAL  
DATA ADDRESS exception (code 02) will be returned.  
If an attempt is made to write invalid data to a register or coil, an ILLEGAL  
DATA VALUE exception (code 03) will be returned.  
If a drive connected to the MDB-100 goes “offline”, all coils will hold their last  
state, with the exception of read-only coils #115 and/or #131, which will  
indicate “offline”. Once communication with the drive(s) is reestablished,  
these coil(s) will again indicate “online”.  
If a drive connected to the MDB-100 goes “offline”, attempts to access any  
register in that drive’s register space will return a Modbus “SLAVE FAILURE”  
error (code 04), except for the following registers, which will hold their last  
state:  
1. Communication command (communication number FA00)  
2. Communication frequency command (communication number FA01)  
3. Output frequency (communication number FD00)  
4. Status (communication number FE01)  
5. Output current (communication number FE03)  
6. Output voltage (communication number FE05)  
Note that the MDB-100 does not assign drive register and coil functions; they  
are entirely drive-dependent, and managed by the drive manufacturer.  
Each drive’s write-only coils are mapped to the corresponding drive’s  
communication command parameter (communication number #FA00). Also,  
22  
 
the MDB-100 does not place any restrictions on coils marked as “Reserved”.  
These coils may be written to at any time. The data or function associated  
with these coils is entirely defined by the connected drive.  
With the exception of coils #115 and #131, each drive’s read-only coils are  
mapped to the corresponding drive’s communication status register  
(communication number #FE01). Also, the MDB-100 does not place any  
restrictions on coils marked as “Reserved”. These coils may be read from at  
any time. The data or function associated with these coils is entirely defined  
by the connected drive.  
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10.2 Holding Registers  
Reg. #  
(hex)  
Max  
(hex:dec)  
Min  
(hex:dec)  
Run Mode  
Modify  
Drive  
Title  
AU1  
AU2  
AU3  
CMOD  
FMOD  
FMSL  
FM  
Function  
0000  
8000  
0001  
8001  
0002  
8002  
0003  
8003  
0004  
8004  
0005  
8005  
0006  
8006  
0007  
8007  
0008  
8008  
0009  
8009  
0010  
8010  
0011  
8011  
0012  
8012  
0013  
8013  
0014  
8014  
0015  
8015  
0016  
8016  
0017  
8017  
0018  
8018  
0019  
8019  
0020  
8020  
0021  
8021  
0022  
8022  
Automatic acceleration and  
deceleration time  
A
B
1
0
Yes  
No  
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
Automatic torque boost  
3
0
Automatic environment  
setting  
2
0
No  
Command mode selection  
1
0
Yes  
Yes  
Yes  
Yes  
No  
Frequency setting mode  
selection  
FM terminal function  
selection  
2
0
1
FF:255  
6
0
0
Connected meter adjustment  
Standard setting mode  
selection  
Forward/reverse selection  
(panel)  
t YP  
Fr  
0
1
0
Yes  
Yes  
Yes  
No  
ACC  
dEC  
FH  
Acceleration time #1 (s)  
Deceleration time #1 (s)  
Maximum frequency  
Upper limit frequency  
Lower limit frequency  
Base frequency  
V/F pattern  
8CA0:3600  
8CA0:3600  
A:1.0  
A:1.0  
7D00:320.0 BB8:30.0  
UL  
FH  
UL  
32:0.5  
0:0.0  
Yes  
Yes  
Yes  
No  
LL  
vL  
7D00:320.0 9C4:25.0  
Pt  
3
0
vb  
Voltage boost  
BB8:30.0  
0
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
OLM  
Sr 1  
Sr 2  
Sr 3  
Sr 4  
Sr 5  
OL selection  
7
0
UL  
UL  
UL  
UL  
UL  
LL  
LL  
LL  
LL  
LL  
Preset speed 1  
Preset speed 2  
Preset speed 3  
Preset speed 4  
Preset speed 5  
24  
 
Reg. #  
(hex)  
Max  
(hex:dec)  
Min  
(hex:dec)  
Run Mode  
Modify  
Drive  
Title  
Sr 6  
Function  
Preset speed 6  
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
0023  
8023  
0024  
8024  
0100  
8100  
0101  
8101  
0102  
8102  
0103  
8103  
0104  
8104  
0110  
8110  
0111  
8111  
0112  
8112  
0113  
8113  
0114  
8114  
0115  
8115  
0130  
8130  
0131  
8131  
0200  
8200  
0201  
8201  
0202  
8202  
0203  
8203  
0204  
8204  
0210  
8210  
0211  
8211  
0212  
8212  
0213  
8213  
0240  
8240  
UL  
UL  
LL  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Sr 7  
LL  
Preset speed 7  
Low speed signal output  
frequency  
Speed reach signal output  
frequency  
F100  
F101  
F102  
F103  
F104  
F110  
F111  
F112  
F113  
F114  
F115  
F130  
F131  
F200  
F201  
F202  
F203  
F204  
F210  
F211  
F212  
F213  
F240  
FH  
0:0.0  
FH  
0:0.0  
FH  
Speed reach detection band  
ST signal selection  
0:0.0  
2
0
RST signal selection  
1
0
Always active function  
selection  
25:37  
25:37  
25:37  
25:37  
25:37  
25:37  
9
0
Input terminal selection #1  
Input terminal selection #2  
Input terminal selection #3  
Input terminal selection #4  
Input terminal selection #5  
Output terminal selection #1  
Output terminal selection #2  
Frequency priority selection  
VIA reference point #1  
VIA point #1 frequency  
VIA reference point #2  
VIA point #2 frequency  
VIB reference point #1  
VIB point #1 frequency  
VIB reference point #2  
VIB point #2 frequency  
Start-up frequency  
0
0
0
0
0
0
9
0
1
0
64:100  
7D00:320.0  
64:100  
7D00:320.0  
64:100  
7D00:320.0  
64:100  
7D00:320.0  
3E8:10.0  
0
0:0.0  
0
0:0.0  
0
0:0.0  
0
0:0.0  
32:0.5  
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Reg. #  
(hex)  
Max  
(hex:dec)  
Min  
(hex:dec)  
Run Mode  
Modify  
Drive  
Title  
F241  
F242  
F250  
F251  
F252  
F260  
F261  
F270  
F271  
F272  
F273  
F274  
F275  
F280  
F281  
F282  
F283  
F284  
F285  
F286  
F287  
F288  
F289  
F290  
F291  
Function  
Run frequency  
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
0241  
8241  
0242  
8242  
0250  
8250  
0251  
8251  
0252  
8252  
0260  
8260  
0261  
8261  
0270  
8270  
0271  
8271  
0272  
8272  
0273  
8273  
0274  
8274  
0275  
8275  
0280  
8280  
0281  
8281  
0282  
8282  
0283  
8283  
0284  
8284  
0285  
8285  
0286  
8286  
0287  
8287  
0288  
8288  
0289  
8289  
0290  
8290  
0291  
8291  
FH  
FH  
0:0.0  
0:0.0  
0:0.0  
0
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Run frequency hysteresis  
DC injection starting  
frequency  
FH  
DC injection current  
DC injection time  
Jog run frequency  
Jog stop control  
64:100  
C8:20.0  
7D0:20.0  
2
0:0.0  
0:0.0  
0
UL  
LL  
Jump frequency #1  
Jump frequency band #1  
Jump frequency #2  
Jump frequency band #2  
Jump frequency #3  
Jump frequency band #3  
Preset speed 1  
BB8:30.0  
UL  
0:0.0  
LL  
BB8:30.0  
UL  
0:0.0  
LL  
BB8:30.0  
UL  
0:0.0  
LL  
UL  
LL  
Preset speed 2  
UL  
LL  
Preset speed 3  
UL  
LL  
Preset speed 4  
UL  
LL  
Preset speed 5  
UL  
LL  
Preset speed 6  
UL  
LL  
Preset speed 7  
UL  
LL  
Preset speed 8  
UL  
LL  
Preset speed 9  
UL  
LL  
Preset speed 10  
Preset speed 11  
Preset speed 12  
UL  
LL  
UL  
LL  
26  
 
Reg. #  
(hex)  
Max  
(hex:dec)  
Min  
(hex:dec)  
Run Mode  
Modify  
Drive  
Title  
F292  
F293  
F294  
F300  
F301  
F302  
F303  
F304  
F305  
F306  
F307  
F400  
F401  
F402  
F403  
F404  
F405  
F406  
F407  
F500  
F501  
F502  
F503  
F504  
Function  
Preset speed 13  
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
0292  
8292  
0293  
8293  
0294  
8294  
0300  
8300  
0301  
8301  
0302  
8302  
0303  
8303  
0304  
8304  
0305  
8305  
0306  
8306  
0307  
8307  
0400  
8400  
0401  
8401  
0402  
8402  
0403  
8403  
0404  
8404  
0405  
8405  
0406  
8406  
0407  
8407  
0500  
8500  
0501  
8501  
0502  
8502  
0503  
8503  
0504  
8504  
UL  
LL  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
No  
UL  
LL  
Preset speed 14  
UL  
LL  
Preset speed 15  
PWM carrier frequency (kHz)  
*
16:2.2  
Auto-restart (motor speed  
search)  
Regeneration power ride-  
through control  
Retry selection: number of  
times  
Regenerative braking  
selection  
3
0
1
0
A:10  
0
1
0
Overvoltage stall protection  
Output voltage adjustment  
Line voltage compensation  
Auto-tuning  
1
0
78:120  
0
1
2
0
0
No  
Slip frequency gain  
FF:255  
FF:255  
FF:255  
FF:255  
3
0
Yes  
No  
Motor constant 1: R1 gain  
Motor constant 2: R2 gain  
Motor constant 3: M gain  
Load inertia  
0
0
No  
0
No  
0
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Auto torque boost no load  
current  
Auto torque boost maximum  
boost  
1E:30  
1E:30  
8CA0:3600  
8CA0:3600  
2
0
0
Acceleration time #2  
Deceleration time #2  
1:0.1  
1:0.1  
0
Acceleration & deceleration  
pattern #1  
Acceleration & deceleration  
pattern #2  
Acceleration & deceleration  
pattern #1 & #2  
2
0
1
0
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Reg. #  
(hex)  
Max  
(hex:dec)  
Min  
(hex:dec)  
Run Mode  
Modify  
Drive  
Title  
Function  
Acceleration & deceleration  
pattern #1 & #2 switching  
frequency  
A
B
0505  
8505  
F505  
UL  
0:0.0  
Yes  
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
0600  
8600  
0601  
8601  
0602  
8602  
0603  
8603  
0604  
8604  
0605  
8605  
0700  
8700  
0701  
8701  
0702  
8702  
0800  
8800  
0801  
8801  
0802  
8802  
0803  
8803  
7A00  
FA00  
7A01  
FA01  
7A02  
FA02  
Motor overload protection  
level  
F600  
F601  
F602  
F603  
F604  
F605  
F700  
F701  
F702  
F800  
F801  
F802  
F803  
FA00  
FA01  
FA02  
64:100  
*
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Stall protection level  
Fault trip saving  
C8:200  
*
1
0
Emergency stop selection  
2
0
Emergency stop DC injection  
time  
Open phase detection  
parameter  
Parameter setting disable  
selection  
C8:20.0  
0:0.0  
2
0
2
0
Unit selection  
3
0
Frequency units  
multiplication factor  
4E20:200.0  
64:0.01  
Communication speed  
Parity  
3
2
0
0
Inverter number  
1F:31  
64:100  
FFFF:65535  
FH  
0
Communication error trip  
time  
0
Communication command  
0
Communication frequency  
command  
0:0.0  
0:0.0  
FH  
Panel frequency command  
28  
 
Status Monitoring Parameters (read-only)  
Comm #  
(hex)  
Drive  
Function  
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
7D00  
FD00  
7E00  
FE00  
7E01  
FE01  
7E02  
FE02  
7E03  
FE03  
7E04  
FE04  
7E05  
FE05  
7E06  
FE06  
7E07  
FE07  
7E08  
FE08  
7E09  
FE09  
7E10  
FE10  
7E11  
FE11  
7E12  
FE12  
7E13  
FE13  
7E14  
FE14  
Current output frequency  
Output Frequency (saves trip  
frequency)  
Status (saves trip status)  
Current frequency command  
Output current display  
Bus voltage  
Output voltage  
Input terminal data  
Output terminal data  
CPU version  
EEPROM version  
Past trip 1  
Past trip 2  
Past trip 3  
Past trip 4  
Cumulative run time  
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Trip Data Codes  
Display  
nEr r  
OC1  
Data  
0000  
0001  
0002  
0003  
0004  
0005  
0006  
0007  
0008  
0009  
000A  
000B  
000C  
000D  
000E  
000F  
0010  
0011  
0012  
0013  
0014  
0015  
0016  
0017  
0018  
Trip Type  
No trip  
Overcurrent during acceleration  
Overcurrent during deceleration  
Overcurrent during constant-speed run  
Load-end short circuit trip during start-up  
Phase short circuit  
OC2  
OC3  
OCL  
OCA  
reserved  
reserved  
EPH1  
EPH0  
OP1  
OP2  
OP3  
OL1  
OL2  
OLr  
reserved  
Loss of output phase  
Overvoltage during acceleration  
Overvoltage during deceleration  
Overvoltage during constant-speed run  
Inverter overload trip  
Motor overload trip  
DBR overload  
OH  
Overheat trip  
E
Emergency stop  
EEP1  
EEPROM fault: write error  
reserved  
reserved  
Er r 2  
Er r 3  
Er r 4  
Er r 5  
RAM fault  
ROM fault  
CPU fault  
Communication interruption error  
0019~0024 reserved  
OCr  
0025  
Dynamic braking resistor trip  
0026~0027 reserved  
Et n  
0028  
0029  
Auto-tuning error  
Inverter typeform error  
Et YP  
30  
 
10.3 Write-Only Coils  
Coil #  
S7 ASD Function  
OFF  
ON  
31  
30  
29  
28  
27  
26  
25  
24  
Command source  
Frequency command source  
Fault reset  
Local  
Local  
N/A  
Network  
Network  
Reset  
Emergency OFF command  
Coast stop command  
Run / stop command  
Forward / reverse selection  
Jog command  
N/A  
Trip “E”  
Coast stop  
Run  
N/A  
Stop  
Forward  
N/A  
Reverse  
Jog  
DC injection  
command  
23  
DC injection braking  
N/A  
22  
21  
20  
19  
18  
17  
16  
15  
14  
13  
12  
11  
10  
9
Accel / decel #1/#2 selection  
Reserved  
#1  
--  
#2  
--  
Reserved  
--  
--  
Preset speed 4  
OFF  
OFF  
OFF  
OFF  
Local  
Local  
N/A  
ON  
Preset speed 3  
ON  
Preset speed 2  
ON  
Preset speed 1  
ON  
Command source  
Frequency command source  
Fault reset  
Network  
Network  
Reset  
Trip “E”  
Coast stop  
Run  
Emergency OFF command  
Coast stop command  
Run / stop command  
Forward / reverse selection  
Jog command  
N/A  
N/A  
Stop  
Forward  
N/A  
Reverse  
Jog  
8
DC injection  
command  
7
DC injection braking  
N/A  
6
5
4
3
2
1
0
Accel / decel #1/#2 selection  
Reserved  
#1  
--  
#2  
--  
Reserved  
--  
--  
Preset speed 4  
Preset speed 3  
Preset speed 2  
Preset speed 1  
OFF  
OFF  
OFF  
OFF  
ON  
ON  
ON  
ON  
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10.4 Read-Only Coils  
Coil #  
S7 ASD Function  
OFF  
ON  
131  
130  
129  
128  
127  
126  
125  
124  
Drive B online / offline status  
Reserved  
Offline  
Online  
Always “0”  
Always “0”  
Always “0”  
Always “0”  
Reserved  
Reserved  
Reserved  
Run / stop status  
Forward / reverse status  
Jog status  
Stopped  
Forward  
Running  
Reverse  
Jogging  
Not jogging  
Not DC injection  
braking  
DC injection  
braking  
123  
DC injection braking status  
122  
121  
120  
119  
118  
117  
116  
115  
114  
113  
112  
111  
110  
109  
108  
Accel / decel #1/#2 status  
Reserved  
#1  
#2  
Always “0”  
Reserved  
Always “0”  
Always “0”  
Always “0”  
Always “0”  
Always “0”  
Reserved  
Reserved  
Reserved  
Reserved  
Drive A online / offline status  
Reserved  
Offline  
Online  
Always “0”  
Always “0”  
Always “0”  
Always “0”  
Reserved  
Reserved  
Reserved  
Run / stop status  
Forward / reverse status  
Jog status  
Stopped  
Forward  
Running  
Reverse  
Jogging  
Not jogging  
Not DC injection  
braking  
DC injection  
braking  
107  
DC injection braking status  
106  
105  
104  
103  
102  
101  
100  
Accel / decel #1/#2 status  
Reserved  
#1  
#2  
Always “0”  
Reserved  
Always “0”  
Always “0”  
Always “0”  
Always “0”  
Always “0”  
Reserved  
Reserved  
Reserved  
Reserved  
32  
 
11. Notes  
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34  
 
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36  
 
2202 Timberloch Place, Suite 210  
The Woodlands, TX USA 77380-1163  
Tel: [281] 367-3007 Fax: [281] 367-2177  
Printed in U.S.A  
 

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