What it means
This alarm comes from Encoder 2: on track A/B the drive has lost pulses or counted too many, and the rotor position adaptation is presently correcting the resulting deviation of the zero mark. The alarm itself does not stop the drive. Depending on how the drive is configured, the same condition can also be issued as a fault (F) or as a message with no reaction (N).
Why it appears
- On track A/B of Encoder 2, pulses have been lost or too many pulses have been counted; these pulses are presently being corrected by the rotor position adaptation.
What to check
- Check that the encoder cables are routed in compliance with EMC.
- Check the plug connections.
- Replace the encoder or the encoder cable.
- Check the encoder limit frequency.
- Adapt the parameter for the distance between zero marks (p0424, p0425).
Reading the message value
- The drive stores the alarm value in r2124; interpret it as a decimal number.
- The value is the last measured deviation of the zero mark in increments.
- 4 increments correspond to 1 encoder pulse.
- The sign designates the direction of motion when detecting the zero mark distance.
Parameters the manual names
- r2124 (alarm value): read here how large the zero mark deviation was that the adaptation last measured — in increments, interpreted as a decimal number.
- p0424 (encoder linear zero mark distance): adapt this distance between zero marks when Encoder 2 is a linear encoder.
- p0425 (encoder rotary zero mark distance): adapt this distance between zero marks when Encoder 2 is a rotary encoder.
Acknowledging and restarting
As an alarm, A32432 requires no acknowledgement and no shutdown — the drive keeps running while the rotor position adaptation corrects the pulse count, so no restart step is needed. If the drive is configured to issue the same condition as a fault instead, that fault must be acknowledged immediately before the drive will start again.
The same on every family
Every manual that describes A32432 gives it the same reaction, acknowledgement and message class.
| Drive family | Reaction | Acknowledge | Message class | Component | Manual |
|---|---|---|---|---|---|
| S120, S150 | NONE | NONE | Actual position/speed value incorrect or not available (11) | Encoder 2 | SINAMICS S120, S150 List Manual · p. 3109 |
| G130, G150 | NONE | NONE | Actual position/speed value incorrect or not available (11) | Encoder 2 | SINAMICS G130, G150 List Manual · p. 1787 |
The drives this code lives on
A32432 is described for G130, G150, S120, S150. These are the converters of those families in our catalogue — price on request.
Questions technicians ask
What does alarm A32432 mean on a SINAMICS drive?
Encoder 2 has lost pulses or counted too many pulses on track A/B, and the rotor position adaptation is currently correcting the deviation of the zero mark. The alarm does not stop the drive by itself.
Does A32432 have to be acknowledged?
No. As an alarm it requires no acknowledgement and no reaction takes place. Only when the condition is configured as a fault must it be acknowledged immediately.
How do I fix alarm A32432?
Check that the encoder cables are routed in compliance with EMC, check the plug connections, replace the encoder or the encoder cable, check the encoder limit frequency and adapt the distance between zero marks in p0424 and p0425.
What does the value displayed with A32432 mean?
It is the alarm value in r2124, read as a decimal number: the last measured deviation of the zero mark in increments, where 4 increments equal 1 encoder pulse. The sign gives the direction of motion when the zero mark distance was detected.
Codes next to this one
Source
Written from Siemens' own List Manuals and operating instructions; every number, designation and parameter on this page is checked against them before publication.
All SINAMICS codes: fault and alarm codes · the A32xxx group · SINAMICS manuals · Siemens manuals