Siemens SINAMICS G120D Operating Instructions Manual page 344

Alarms, faults and system messages
10.6 List of alarms and faults
Number Cause
A31418 Speed difference per sampling rate
exceeded
F31905 Parameterizing error
A31915 Configuration error
F32110 Serial communications error
F32111 Absolute encoder internal error
F32112
A32410 Serial communication
A32411 Absolute encoder outputs alarms
A32412 Error bit set in the serial protocol
A32442 Battery voltage pre-alarm
F32905 Parameterizing error
A32915 Configuration error
For further information, please refer to the List Manual.
344
Remedy
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).
•
Check whether the connected encoder type matches the encoder that
has been parameterized.
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.
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.
Check the power supply of the encoder.
•
Replace the encoder.
•
Check that the encoder cables are routed in compliance with EMC.
•
Check the cable connections.
•
Replace the encoder.
•
Replace the encoder.
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
•
Replace the battery in the encoder.
Check whether the connected encoder type matches the encoder that
•
has been parameterized.
Correct the parameter specified by the fault value (r0949) and p0187.
•
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.
Operating Instructions, 04/2015, FW V4.7.3, A5E34261542B AB
Converter with control units CU250D-2