Siemens SINAMICS G120D - Page 343

Alarms, faults and system messages
10.6 List of alarms and faults
Converter with control units CU250D-2
Operating Instructions, 04/2015, FW V4.7.3, A5E34261542B AB
343
Number
Cause
Remedy
F30004 Converter overtemperature Check whether the converter fan is running.
Check whether the ambient temperature is in the permissible range.
Check whether the motor is overloaded.
Reduce the pulse frequency.
F30005 I2t converter overload Check the rated currents of the motor and Power Module.
Reduce current limit p0640.
When operating with U/f characteristic: Reduce p1341.
F30011 Line phase failure Check the converter's input fuses.
Check the motor cables.
F30015 Motor cable phase failure Check the motor cables.
Increase the ramp-up or ramp-down time (p1120).
F30021 Ground fault
• Check the power cable connections.
• Check the motor.
• Check the current transformer.
• Check the cables and contacts of the brake connection (a wire might
be broken).
F30027 Time monitoring for DC link pre-
charging
Check the supply voltage at the input terminals.
Check the line voltage setting (p0210).
F30035
Overtemperature, intake air
• Check whether the fan is running.
• Check the fan filter elements.
• Check whether the ambient temperature is in the permissible range.
F30036 Overtemperature, inside area
F30037 Rectifier overtemperature See F30035 and, in addition:
• Check the motor load.
• Check the line phases
A30049
Internal fan defective
Check the internal fan and if required replace.
F30059
Internal fan defective
Check the internal fan and if required replace.
A30502 DC link overvoltage
• Check the unit supply voltage (p0210).
• Check the dimensioning of the line reactor.
A30920
Temperature sensor fault
Check that the sensor is connected correctly.
F31100
Zero mark distance error
The measured zero mark distance does not correspond to the parameter-
ized zero mark distance. Remedy:
• Check that the encoder cables are routed in compliance with EMC.
• Check the cable connections.
• Check the encoder type (encoder with equidistant zero marks).
• Adapt the parameters for the distance between zero marks (p0424,
p0425).
• For a signal output above a speed threshold, reduce the filter time
(p0438).
F31101 Zero mark failed
F31118
Speed difference outside tolerance
For an HTL/TTL encoder, the speed difference has exceeded the value in