Siemens SINAMICS G120D Operating Instructions Manual page 251

Number Cause
F30036 Overtemperature, inside area
F30037 Rectifier overtemperature
A30049 Internal fan defective
F30059 Internal fan defective
A30502 DC link overvoltage
A30920 Temperature sensor fault
F31118 Speed difference outside tolerance For an HTL/TTL encoder, the speed difference has exceeded the value in
A31418 Speed difference per sampling rate
exceeded
F31905 Parameterization error
For further information, please refer to the List Manual.
Converter with control units CU240D-2
Operating Instructions, 04/2014, FW V4.7, A5E34262100B AA
Remedy
Check the fan filter elements.
•
Check whether the ambient temperature is in the permissible range.
•
See F30035 and, in addition:
Check the motor load.
•
Check the line phases
•
Check the internal fan and if required replace.
Check the internal fan and if required replace.
Check the unit supply voltage (p0210).
•
Check the dimensioning of the line reactor.
•
Check that the sensor is connected correctly.
p0492 over several sampling cycles.
Check tachometer feeder cable for interruptions.
•
Check grounding of the tachometer shielding.
•
Increase the maximum speed difference per sampling cycle (p0492).
•
Check whether the connected encoder type matches the encoder that
has been parameterized.
Alarms, faults and system messages
11.6 List of alarms and faults
251