Honeywell Automobile Electronics MN7220 User Manual

N20, N34 Series MN7220, MN7234  
NON-SPRING RETURN DAMPER ACTUATOR  
20/34 Nm (175/300 lb-in) FOR MODULATING CONTROL  
PRODUCT DATA  
SPECIFICATIONS  
Supply voltage  
24 Vac ±20%, 50/60 Hz;  
24 Vdc -10...+20%  
24 Vac, 50/60 Hz; 24 Vdc  
Nominal voltage  
All values stated hereinafter apply to operation under  
nominal voltage conditions.  
Power consumption  
MN7220  
MN7234  
6 VA / 6 W  
8 VA / 6 W  
Ambient limits  
Ambient operating limits  
Ambient storage limits  
Relative humidity  
Safety  
-5...+140 °F (-20...+60 °C)  
-40...+175 °F (-40...+80 °C)  
5...95%, non-condensing  
Protection standard  
IP54 (non-USA models)  
NEMA2 (USA models)  
II as per EN 60730-1  
II  
Protection class  
Overvoltage category  
Lifetime  
Full strokes  
Repositions  
Mounting  
60000  
1.5 million  
GENERAL  
These direct-coupled damper actuators provide modulating  
control for:  
Round damper shaft  
Square damper shaft  
3/8...1-1/16” (10...27 mm)  
3/8...11/16” (10...18 mm);  
45° steps  
min. 7/8” (22 mm)  
0(2)...10 Vdc  
rotary valves,  
air handling units,  
ventilation flaps,  
louvers, and  
reliable control for air damper applications with up to 50  
sq.ft. (20 Nm / 175 lb-in) or 85 sq. ft. (34 Nm / 300 lb-in)  
(seal-less damper blades; air friction-dependent).  
Shaft length  
Control signal  
0(4)...20 mA  
Input impedance  
100 kΩ [0...10 V]  
500 Ωm [0...20 mA]  
Feedback signal  
Limits  
± 1 mA at 0...10 V  
Auxiliary switch (when included)  
FEATURES  
Rating  
5 A (resistive) / 3 A (inductive)  
Triggering points  
Torque rating  
MN7220  
MN7234  
Runtime  
5° / 85°  
New self-centering shaft adapter  
Access cover to facilitate connectivity  
Declutch for manual adjustment  
175 lb-in (20 Nm)  
300 lb-in (34 Nm)  
95 sec (60 Hz) / 110 sec (50 Hz)  
Mechanical end limits (MN7220 only)  
Field-installable auxiliary switches  
Rotation direction selectable by switch  
Mountable in any orientation (no IP54 if upside down)  
Mechanical position indicator  
Rotation stroke  
Dimensions  
Weight  
95° ± 3°  
see “Dimensions” on page 8  
3 lbs. (1.35 kg)  
Noise rating  
40 dB(A) max. at 1 m  
63-2587-1  
 
N20, N34 SERIES MN7220, MN7234  
Rotary Movement  
The control signal and the corresponding rotation direction  
(clockwise or counterclockwise) can be selected using the  
rotation direction switch (see part Rotation direction switch in  
Fig. 2), thus eliminating the need to re-wire. To ensure tight  
closing of the dampers, the actuator has a total rotation stroke  
of 95°.  
voltage/current control signal  
As soon as operating power is applied, the actuator may start  
to run. When power is removed, the actuator remains in  
position. For actuator-controller wiring instructions, see section  
“Wiring” on page 5.  
dip switch (OFF  
)
autoadapt dip switch for  
normal operation (ON  
)
Rotation Direction Switch  
Fig. 4. Dip switches (view with PCB at bottom)  
Autoadapt Dip Switch for Normal Operation  
In its default shipping position, the autoadapt dip switch for  
normal operation is set to ON as shown in Fig. 4. Dip switches  
(view with PCB at bottom)4. If it is set to OFF, no autoadapting  
is performed, and the control signal map remains constant.  
Fig. 3. Rotation Direction Switch  
The autoadapt functionality does not have to be triggered.  
Rather, the SmartAct actuator does this automatically when the  
min. and max. control signals are provided (see Fig. 5); the  
feedback signal is likewise autoadapted.  
Table 1. Feedback/control signal values  
Feedback/control signal when  
Rotation direction  
actuator is  
switch position  
totally  
U = 2 V  
U = 0 V  
U = 10 V  
U = 10 V  
totally  
Y=2 /2...10V  
Y=0 /0...10V*  
Y=0 /10...0V  
Y=2 /10...2V  
U = 10 V  
U = 10 V  
U = 0 V  
U = 2 V  
* Default shipping position.  
Feedback Signal and Manual Adjustment  
If, while the actuator is not rotating, the user declutches it and  
manually repositions the shaft adapter, the feedback signal will  
then follow the new position at which the shaft adapter has  
been left.  
Fig. 5. Actuator positioning curve  
Power Off/On Behavior  
In case the power to the actuator fails, after re-applying power,  
the actuator acknowledges its present position and follows the  
signal from the controller. This makes it unnecessary for the  
actuator to employ autoadaption in order to re-map the control  
signal settings.  
In order to make use of the autoadapt functionality, proceed as  
follows:  
1. Set the autoadapt dip switch to the ON position.  
2. If necessary, limit the stroke to the desired range using  
the mechanical end limits.  
3. Drive the actuator to the left end limit (totally counter-  
clockwise) by setting the control signal as specified in  
Table 1. Feedback/control signal values1.  
4. Drive the actuator to the right end limit (totally clockwise)  
by setting the control signal as specified in Table 1.  
Feedback/control signal values1. The stroke has now  
been limited to 0...100% of the control signal range.  
Dip Switches  
The actuators are equipped with two dip switches accessible  
after removing the access cover (see Fig. 4).  
3
63-2587—1  
 
N20, N34 SERIES MN7220, MN7234  
The mechanical end limits must be securely fastened in place  
as shown in Fig. 8. Correct / incorrect tightening of end limits8.  
Specifically, it is important that they properly mesh with the  
rotational angle scales when the screws are tightened.  
Voltage/Current Control Signal Selection Dip Switch  
In its default shipping position, the voltage/current control  
signal dip switch (see Fig. 4) is set to OFF (= voltage control).  
as shown in Fig. 4. Setting it to ON results in current control.  
Position Indication  
The hub adapter indicates the rotation angle position by means  
of the rotational angle scales (0...90° / 90...0°).  
90 90  
60  
60  
30  
0
30  
0
Fig. 8. Correct/incorrect tightening of end limits  
Internal Auxiliary Switches  
The internal auxiliary switches are set to change from  
“common” to “normally open” at angles of 5° and 85°,  
respectively, from the totally counterclockwise position.  
Fig. 6. Position indication  
Manual Adjustment  
actuator scale: clockwise  
IMPORTANT  
In order to prevent equipment damage, you must  
-2.5° 0°  
5°  
10°  
10°  
15°  
75°  
80°  
80°  
85°  
90° 92.5°  
CCW internal  
auxiliary switch  
CW internal  
auxiliary switch  
remove power before manual adjustment.  
auxiliary switch scale  
After removing power, the gear train can be disengaged using  
the declutch button, permitting the actuator shaft to be  
manually rotated to any position. The feedback signal will then  
follow the new position.  
0°  
5°  
15°  
75°  
85°  
90°  
actuator scale: counterclockwise  
92.5° 90°  
85°  
80°  
75°  
15°  
10°  
5°  
0° -2.5°  
Limitation of Rotation Stroke  
Fig. 9. Internal auxiliary switches  
Two mechanical end limits (adjustable in 3° increments) are  
provided (20 Nm [175 lb-in] models, only) to limit the angle of  
rotation as desired (see Fig. 7).  
Override  
If terminal 3 of the terminal strip (see section “Wiring  
Diagrams” on page 6) is unplugged, the stroke will be 0%;  
reversing the rotation direction using the rotation direction  
switch will result in a max. stroke of 100%. If terminal 3 is  
jumped with terminal 1 (24 V), the stroke will be 50%.  
INSTALLATION  
These actuators are designed for single-point mounting.  
IMPORTANT  
In order to prevent equipment damage, you must  
remove power or set the rotation direction switch to  
the “Service/Off” position before manual operation.  
Fig. 7. Mechanical end limits  
Mounting Instructions  
All information and steps are included in the Installation  
Instructions supplied with the actuator.  
63-2587—1  
4
 
N20, N34 SERIES MN7220, MN7234  
IMPORTANT  
Mounting Position  
Remove power before detaching the access cover.  
Once the access cover has been removed, please  
take care to avoid damaging any of the parts now  
accessible.  
The actuators can be mounted in any desired orientation (no  
NEMA2 or IP54 if mounted upside down; see Fig. 10). Choose  
an orientation permitting easy access to the actuator's cables  
and controls.  
NEMA2  
IP54  
NEMA2  
IP54  
NEMA2  
IP54  
NEMA2  
IP54  
Fig. 11. Access cover  
Depending upon the model, the access cover may have one or  
two terminal strips, including a layout with a description for  
each of the terminals.  
Fig. 10. Mounting for IP54/NEMA2  
Mounting Bracket and Screws  
If the actuator is to be mounted directly on a damper shaft, use  
the mounting bracket and screws included in the delivery  
package.  
Self-Centering Shaft Adapter  
The self-centering shaft adapter can be used for shafts having  
various diameters (3/8...1-1/16” [10...27 mm]) and shapes  
(square or round).  
In the case of short shafts, the shaft adapter may be reversed  
and mounted on the duct side.  
Stroke Limitation with Mechanical End Limits  
The mechanical end limits (20 Nm [175 lb-in] models, only)  
enable the stroke to be limited from 0...90° in increments of 3°.  
Wiring  
Fig. 12. Actuator with access cover removed  
Access cover  
To facilitate wiring the actuator to the controller, the access  
cover can be detached from the actuator.  
5
63-2587—1  
 
N20, N34 SERIES MN7220, MN7234  
Wiring Diagrams  
MN7220/MN7234  
24 Vac 24 Vdc  
~
1
1~  
2
2
3Y  
5U  
0(2)...10 Vdc  
0(4)...20 mA  
3Y  
5U  
0(2)...10 Vdc  
TERMINAL STRIP 1  
Connect via safety  
isolating transformer!  
!
MODULATING CONTROL  
MN7220 WITH SWITCHES  
S1  
S2  
S3  
S4  
S5  
S6  
S1  
S2  
S3  
S4  
S5  
S6  
24 Vac 24 Vdc  
1
~
1~  
2
2
0(2)...10 Vdc  
0(4)...20 mA  
3Y  
TERMINAL STRIP  
3Y  
0(2)...10 Vdc  
5U  
5U  
Connect via  
!
isolating  
AUXILIARY  
AUXILIARY  
MODULATING  
NOTE: Internal auxiliary switches S1 and S4 must be connected to the same power source.  
connecting cable  
terminal  
name  
1~  
24 Vac/ 24 Vdc+  
24 Vac/ 24 Vdc-  
2⊥  
3Y  
5U  
S1  
S2  
S3  
S4  
S5  
S6  
supply and signal lines  
0(2)...10 Vdc / 0(4)...20 mA control signal  
0(2)...10 V feedback signal  
Common  
CCW (left)  
5°  
normally closed  
normally open  
auxiliary switched  
(when included)  
Common  
CW (right)  
85°  
normally closed  
normally open  
63-2587—1  
6
 
N20, N34 SERIES MN7220, MN7234  
7
63-2587—1  
 
N20, N34 SERIES MN7220, MN7234  
DIMENSIONS  
100 mm (3-15/16”)  
95°  
shaft  
adapter  
shaft  
adapter (reverse)  
90  
60  
30  
0
20.6 mm  
(1-3/16”)  
92 mm (3-5/8”)  
min. 60 mm (2-3/8”)  
132 mm (5-3/16”)  
230 mm [+/- 0.5 mm] (9-1/16” [+/-1/64”])  
20 mm (25/32”)  
anti-rotation bracket  
7 mm (9/32”)  
13 mm (1/2”)  
5 mm (+0.05, -0.10 mm)  
25/128” (+0.002, -0.004”)  
2 mm (5/64”)  
Automation and Control Solutions  
Honeywell International Inc.  
1985 Douglas Drive North  
Golden Valley, MN 55422  
customer.honeywell.com  
Honeywell Limited-Honeywell Limitée  
35 Dynamic Drive  
Scarborough, Ontario M1V 4Z9  
® U.S. Registered Trademark  
© 2005 Honeywell International Inc.  
63-2587—1 M.S. Rev. 10-05  
 

Graco Digital Camera 850 6 02 User Manual
Graco Saw 246477 User Manual
Graco Stroller little tikes User Manual
Hearth and Home Technologies Indoor Fireplace Cinch Pipe Termination Cap System User Manual
Heatcraft Refrigeration Products Refrigerator H IM 79E User Manual
Hotpoint Dishwasher FDD 912 User Manual
HP Hewlett Packard Tool Storage A3311A User Manual
Humminbird Fish Finder 900 Series User Manual
Hunter Fan Fan 20727 User Manual
IBM Computer Accessories 190000 User Manual