Siemens SINAMICS S210 - F31101 (N, A) Encoder 1: Zero Mark Failed; Signal Level Zero Mark (Track R) Outside Tolerance

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 distance between zero marks (p0424, p0425).
- if message output above speed threshold, reduce filter time if necessary (p0438).
- replace the encoder or encoder cable.
Reaction upon N: NONE
Acknowl. upon N: NONE
Reaction upon A: NONE
Acknowl. upon A: NONE
F31101 (N, A) Encoder 1: Zero mark failed
Message value: %1
Drive object: All objects
Reaction: Servo: ENCODER (IASC/DCBRK, NONE, OFF1, OFF2, OFF3, STOP2)
Acknowledge: PULSE INHIBIT
Cause: The 1.5 x parameterized zero mark distance was exceeded.
The zero mark distance for the zero mark monitoring is set in p0425 (rotary encoder) or p0424 (linear encoder).
Fault value (r0949, interpret 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).
- if message output above speed threshold, reduce filter time if necessary (p0438).
- when p0437.1 is active, check p4686.
- replace the encoder or encoder cable.
Reaction upon N: NONE
Acknowl. upon N: NONE
Reaction upon A: NONE
Acknowl. upon A: NONE
F31103 (N, A) Encoder 1: Signal level zero mark (track R) outside tolerance
Message value: R track: %1
Drive object: All objects
Reaction: Servo: ENCODER (IASC/DCBRK, NONE)
Acknowledge: PULSE INHIBIT
Faults and alarms
13.2 List of faults and alarms
SINAMICS S210 servo drive system
552 Operating Instructions, 12/2017, A5E41702836B AA