Issue 01/06 | Faults and Alarms |
5 Faults and Alarms
5.1Fault messages
In the event of a failure, the inverter switches off and a fault code appears on the display.
NOTE
To reset the fault code, one of three methods listed below can be used:
1.Cycle the power to the drive.
2.Press the 
button on the BOP or AOP.
3.Via Digital Input 3 (default setting)
Fault messages are stored in parameter r0947 under their code number (e.g. F0003 = 3). The associated error value is found in parameter r0949. The value 0 is entered if a fault has no error value. It is furthermore possible to read out the point in time that a fault occurred (r0948) and the number of fault messages (P0952) stored in Parameter r0947.
F0001 Overcurrent | STOP II |
Quit
Remove fault and reset fault memory by disconnecting the
-drive converter from the line supply and
-Press the Fn key on the BOP or AOP
-Acknowledge fault P2103, P2104
-P0952 (complete fault memory)
Cause
-
-ground fault
-excessively large motor (the motor power rating P0307 is greater than the inverter power r0206)
-defective final stage (end stage)
Diagnosis & Remedy
Please check the following:
-are the cable lengths within the limit values ?
-does the motor cable or motor have either a
-do the motor parameters correspond to those of the motor being used ?
-is the motor overloaded or stalled (locked rotor) ?
-increase the accelerating time.
-reduce the gain
-use a motor with a lower power rating
-is the stator resistance value (P0350) correct ?
F0002 Overvoltage | STOP II |
Quit
Refer to F0001
Cause
-DC link voltage (r0026) higher than the overvoltage threshold (refer to parameter r0026)
-ground fault
Diagnosis & Remedy
Please check the following:
-is the line supply voltage within the permissible range?
-has the DC current DC link monitoring been enabled (P1240) and correctly parameterized?
-extend the deceleration ramp
-remove the ground fault
-is the required braking power within the permissible limits?
NOTE
-a higher moment of inertia requires longer deceleration times; if required, use a braking resistor.
-overvoltage can either be caused by an excessively high line supply voltage or by the fact that the motor is generating (regenerative mode).
-the motor can be generating as it is decelerating quickly or due to the fact that an active load is driving the motor.
MICROMASTER 440 | Parameter List |
307 |
