Faults And Alarms; Fault Messages; F0001 Overcurrent; F0002 Overvoltage - Siemens MICROMASTER 440 Parameter Manual

Issue 01/06
5

Faults and Alarms

5.1

Fault 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
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

Quit
Remove fault and reset fault memory by disconnecting the
- drive converter from the line supply and powering-up again
- Press the Fn key on the BOP or AOP
- Acknowledge fault P2103, P2104
- P0952 (complete fault memory)
Cause
- short-circuit at the output
- 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 short-circuit or ground fault ?
- 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

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 (ramp-down time P1121, P1135)
- 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
6SE6400-5BB00-0BP0
button on the BOP or AOP.
Faults and Alarms
STOP II
STOP II
307