Siemens G120P Manual page 52

Fault rectification
6
Alarms and faults
Number Cause
F30002 Power unit: DC-link voltage
overvoltage
F30003 Power unit: DC-link voltage
undervoltage
F30004 Drive overtemperature
F30005 I2t drive overload
F30011 Line phase failure
F30015 Motor cable phase failure
F30021 Ground fault
F30022 Power Module: UCE monitoring
F30027 Time monitoring for DC link pre-
charging
F30035 Overtemperature, intake air
F30036 Overtemperature, inside area
F30037 Rectifier overtemperature
52
Siemens AG
Solution
Motor data. Perform commissioning, if necessary.

Motor connection method (Υ / Δ).

V/f operation, the assignment of the rated currents of the motor and power unit.

Line quality.

 The line commutating reactor must be connected properly.
Power cable connections.

Power cables for short-circuit or ground fault

Power cable length

Line phases

If the fault is still present:
V/f operation: Increase the up ramp.

Reduce the load.

Replace the power unit.

 Increase the ramp-down time (p1121).
 Set the rounding times (p1130, p1136).
Activate the DC link voltage controller (p1240, p1280).

Check the line voltage (p0210).

Check the line phases.

Check the line voltage (p0210).

Check the line phases.

 Check whether the drive fan is running.
 Check the ambient temperature.
Check whether the motor is overloaded.

Reduce the pulse frequency.

Check the rated currents of the motor and Power Module.

 Reduce current limit p0640.
When operating with V/f characteristic: Reduce p1341.

Check the drive's input fuses.

Check the motor cables.

Check the motor cables.

Increase the ramp-up or ramp-down time (p1120).

 Check the power cable connections.
 Check the motor.
Check the current transducer.

Check the cables and contacts of the brake connection (a wire might be

broken).
Check the Power Module.

Replace the Power Module, if necessary.

 Check the supply voltage at the input terminals.
 Check the line voltage setting (p0210).
Check whether the fan is running.

Check the fan elements.

 Check the ambient temperature.
Check whether the fan is running.

Check the fan elements.

Check the ambient temperature.

 Check the motor load.
Check the line phases.

CM2G5111en
2014-05-16