Siemens SINAMICS G120D - Page 323

Alarms, faults and system messages
11.6 List of alarms and faults
Converter with control units CU250D-2
Operating Instructions, 04/2014, FW V4.7, A5E34261542B AA
323
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.
F31100
Zero mark distance error
The measured zero mark distance does not correspond to the
parameterized 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
p0492 over several sampling cycles.
• Check tachometer feeder cable for interruptions.
• Check the grounding of the tachometer shielding.
• Increase the maximum speed difference per sampling cycle (p0492).
A31418 Speed difference per sampling rate
exceeded
F31905 Parameterizing error Check whether the connected encoder type matches the encoder that
has been parameterized.
A31915 Configuration error When the fine resolution Gx_XIST2 is configured, the encoder identifies a
maximum possible absolute position actual value (r0483) that can no
longer be represented within 32 bits. Remedy: Check the encoder data.
F32110 Serial communications error The transfer of the serial communication protocol between the encoder
and converter is faulty. Remedy: Check the hardware and the associated
settings in the converter.
F32111
F32112
Absolute encoder internal error
• Check the power supply of the encoder.
• Replace the encoder.
A32410 Serial communication
• Check that the encoder cables are routed in compliance with EMC.
• Check the cable connections.
• Replace the encoder.
A32411
Absolute encoder outputs alarms
Replace the encoder.
A32412 Error bit set in the serial protocol
• Carry out a power on reset (power off/on) for all components.
• Check that the encoder cables are routed in compliance with EMC.
• Check the plug connections.
• Replace the encoder