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American Control Electronics MGC403 - Page 2

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
speed is held constant as the motor load changes. To calibrate the IR/T:
1. Set the IR/T trim pot full CCW.

2. handheld tachometer may be used to measure motor speed.


2. 
2. 
5. Unload the motor.
If using tach feedback, calibrate the IR/T trim pot as follows:

2. 
2. 

2. the armature voltage across A1 and A2 using a voltmeter.


6. Set the IR/T trim pot to full CW.


2. step 3.

to either A90/A180 or TACH.



calibrate FWCL:
1. With the power disconnected from the drive, connect a DC ammeter in series with the motor
2. armature.



5. Apply line power. The motor should be stopped.

2. armature current.

8. Remove line power.
9. Remove the stall from the motor.
10. Remove the ammeter in series with the motor armature if it is no longer needed.
Reverse Current Limit (RVCL): 






for minimum speed. To calibrate the OFS1:
1. Set the OFS1 trim pot at 50%.



crossing / zero speed command. To calibrate the OFS1:
1. Set the OFS1 trim pot at 50%.



for minimum speed. To calibrate the OFS2:
1. Set the OFS2 trim pot at 50%.



crossing / zero speed command. To calibrate the OFS2:
1. Set the OFS2 trim pot at 50%.


Maximum Speed (MAX): 
Signal 2 inputs. To calibrate the MAX:
1. Set the MAX trim pot full CCW.








1. With the power disconnected from the drive, connect a DC ammeter in series with the motor armature.








point is below the current limit.
8. Remove AC line power. Wait 30 seconds before reapplying power.





Calibration

Open to Start

Close to Stop
1 2 3 4 5 6 7 8

Close to Start

Close to Stop
1 2 3 4 5 6 7 8

Open to Start

Open to Stop
1 2 3 4 5 6 7 8

Close to Start

Open to Stop
1 2 3 4 5 6 7 8
Enable
Open to Coast
Inhibit
Open to Brake
1 2 3 4 5 6 7 8
Enable
Close to Coast
Inhibit
Open to Brake
1 2 3 4 5 6 7 8
Enable
Open to Coast
Inhibit
Close to Brake
1 2 3 4 5 6 7 8
Enable
Close to Coast
Inhibit
Close to Brake
1 2 3 4 5 6 7 8
Independent Speed/Torque
Mode
1 2 3 4 5 6 7 8
Linear Speed/Torque
Mode
1 2 3 4 5 6 7 8
Torque Mode
1 2 3 4 5 6 7 8

Mode
1 2 3 4 5 6 7 8
Speed Mode
1 2 3 4 5 6 7 8

Speed Mode: 


Torque Mode: 
Linear Speed/Torque Mode: 
Independent Speed/Torque Mode: 


 The drive will run to set speed upon power up if receiving a run command and the Enable and Inhibit are set to run.
 Upon power up, the drive must see a stop command before the drive will run the motor.



 Alarm Output Type
The AUX output alarm will turn on whenever the drive is in current limit.

 Enable/Inhibit or 3-Wire Start/Stop

Terminals COM and EN are a momentary Start switch and terminals COM and INH are a momentary Stop switch.











Operation