Siemens SINAMICS S210 Operating Instructions Manual page 627

A32421 (F, N) Encoder 2: Determined commutation position incorrect (alarm)
Message value: %1
Drive object: All objects
Reaction: NONE
Acknowledge: NONE
Cause: A commutation position actual value sensing error was detected.
Alarm value (r2124, interpret decimal):
3: The absolute position of the serial protocol and track A/B differ by half an encoder pulse. The absolute position must
have its zero position in the quadrants in which both tracks are negative. In the case of a fault, the position can be incorrect
by one encoder pulse.
Remedy: For alarm value = 3:
- For a standard encoder with cable, contact the manufacturer where relevant.
- correct the assignment of the tracks to the position value that is serially transferred. To do this, the two tracks must be
connected, inverted, at the Sensor Module (interchange A with A* and B with B*) or, for a programmable encoder, check
the zero offset of the position.
Reaction upon F: Servo: NONE (IASC/DCBRK, OFF1, OFF2, OFF3, STOP2)
Acknowl. upon F: IMMEDIATELY
Reaction upon N: NONE
Acknowl. upon N: NONE
A32422 (F, N) Encoder 2: Pulses per revolution square-wave encoder outside tolerance bandwidth
Message value: %1
Drive object: All objects
Reaction: NONE
Acknowledge: NONE
Cause: The measured zero mark distance does not correspond to the parameterized zero mark distance.
This alarm is triggered with active square-wave encoder PPR correction and re-parameterized fault 31131 if the
accumulator contains larger values than p4683 or p4684.
The zero mark distance for zero mark monitoring is set in p0425 (rotary encoder).
Alarm value (r2124, interpret decimal):
accumulated differential pulses in encoder pulses.
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).
- replace the encoder or encoder cable.
Reaction upon F: Servo: NONE (IASC/DCBRK, OFF1, OFF2, OFF3, STOP2)
Acknowl. upon F: IMMEDIATELY
Reaction upon N: NONE
Acknowl. upon N: NONE
A32429 (F, N) Encoder 2: Position difference hall sensor/track C/D and A/B too large
Message value: %1
Drive object: All objects
Reaction: NONE
Acknowledge: NONE
SINAMICS S210 servo drive system
Operating Instructions, 12/2017, A5E41702836B AA
Faults and alarms
13.2 List of faults and alarms
625