Fault Messages - Siemens Micromaster 440 Operating Instructions Manual

6 Troubleshooting
6.3

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
Possible Causes
! Motor power (P0307) does not correspond to the inverter power (r0206)
! Motor leads are too long
! Motor lead short circuit
! Earth faults
Diagnose & Remedy
Check the following:
1. Motor power (P0307) must correspond to inverter power (r0206)
2. Cable length limits must not be exceeded
3. Motor cable and motor must have no short-circuits or earth faults
4. Motor parameters must match the motor in use
5. Value of stator resistance (P0350) must be correct
6. Motor must not be obstructed or overloaded
! Increase the ramp time
! Reduce the boost level (V/f control: P1311 & P1312, Vector control: P1610 & P1611)
F0002 OverVoltage
Possible Causes
! DC-link controller disabled (P1240 = 0)
! DC-link voltage (r0026) exceeds trip level (P2172)
! Overvoltage can be caused either by too high main supply voltage or if motor is in regenerative
mode. Regenerative mode can be caused by fast ramp downs or if the motor is driven from an
active load.
Diagnose & Remedy
Check the following:
7. Supply voltage (P0210) must lie within limits indicated on rating plate
8. DC-link voltage controller must be enabled (P1240) and parameterized properly
9. Ramp-down time (P1121) must match inertia of load
10. Required braking power must lie within specified limits
NOTE
Higher inertia requires longer ramp times. Apply a braking resistor for the models A- F, if necessary
92
button on the BOP or AOP.
MICROMASTER 440 Operating Instructions
6SE6400-5AW00-0BP0
Issue 12/02
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