Siemens SINAMICS G120D Series - Page 280

Alarms, faults and system messages
10.6 List of alarms and faults
Number
Cause
Remedy
F30036 Overtemperature, inside area
•
Check the fan filter elements.
• Check whether the ambient temperature is in the permissible range.
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.
F31118
Speed difference outside tolerance
For an HTL/TTL encoder, the speed difference has exceeded the value in
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).
A31418 Speed difference per sampling rate
exceeded
F31905 Parameterization error Check whether the connected encoder type matches the encoder that
has been parameterized.
For further information, please refer to the List Manual.
Converter with control units CU240D-2
280 Operating Instructions, 04/2015, FW V4.7.3, A5E34262100B AB