Siemens SINAMICS G List Manual page 626

Faults and Alarms
List of faults and alarms
Remedy: - check that the encoder cables are routed in compliance with EMC.
- check the plug connections.
. check the encoder type (encoder with equidistant zero marks).
- adapt the parameter for the clearance between zero marks (p0425).
- replace the encoder or encoder cable.
F33101 Encoder 3: Zero mark failed
Reaction: NONE (DCBRAKE, OFF1, OFF2, OFF3, STOP1, STOP2)
Acknowledge: IMMEDIATELY
Cause: The 1.5 x parameterized zero mark clearance was exceeded (p0425 for rotating encoders).
Fault value (r0949, decimal):
Number of increments after POWER ON or since the last zero mark that was detected (4 increments = 1 encoder
pulse).
Remedy: - check that the encoder cables are routed in compliance with EMC.
- check the plug connections.
. check the encoder type (encoder with equidistant zero marks).
- adapt the parameter for the clearance between zero marks (p0425).
- replace the encoder or encoder cable.
F33110 Encoder 3: EnDat communications error
Reaction: NONE (DCBRAKE, OFF1, OFF2, OFF3, STOP1, STOP2)
Acknowledge: IMMEDIATELY
Cause: Serial communication protocol transfer error between the encoder and evaluation module SMCxx.
Fault value (r0949, binary):
Bit 0: Alarm bit in the position protocol.
Bit 1: Incorrect quiescent level on the data line.
Bit 2: EnDat encoder does not response (does not supply a start bit).
Bit 3: CRC error: The checksum in the protocol from the encoder does not match the data.
Bit 4: Incorrect encoder acknowledgement: The encoder incorrectly understood the task (request) or cannot execute
it.
Bit 5: Internal error in the EnDat driver: An illegal mode command was requested.
Bit 6: Position value longer than 40 bits.
Remedy: Re fault value:
Bit 0 = 1: Encoder defective. F31111 may provide additional details.
Bit 1 = 1: Incorrect encoder type / replace the encoder or encoder cable.
Bit 2 = 1: Incorrect encoder type / replace the encoder or encoder cable.
Bit 3 = 1: EMC / connect the cable shield, replace the encoder or encoder cable.
Bit 4 = 1: EMC / connect the cable shield, replace the encoder or encoder cable, replace the sensor module.
Bit 5 = 1: EMC / connect the cable shield, replace the encoder or encoder cable, replace the sensor module.
Bit 6 = 1: The sensor module does not support this encoder.
F33111 Encoder 3: Absolute value encoder EnDat, internal fault/error
Reaction: NONE (DCBRAKE, OFF1, OFF2, OFF3, STOP1, STOP2)
Acknowledge: IMMEDIATELY
Cause: The EnDat encoder fault word contains fault bits that have been set.
Fault value (r0949, binary):
Bit 0: Lighting system failed.
Bit 1: Signal amplitude too low.
Bit 2: Position value incorrect.
Bit 3: Encoder power supply overvoltage condition.
Bit 4: Encoder power supply undervoltage condition.
Bit 5: Encoder power supply overcurrent condition.
Bit 6: The battery must be changed.
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SINAMICS G List Manual, Edition 12.2004