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Fault · SINAMICS S120, S150

F32112Encoder 2: Encoder signals an internal error

What it means

F32112 means that Encoder 2 has signalled a set error bit to the drive via the serial protocol: the encoder itself reports an internal error. The drive stores the received error information as the fault value in r0949, which is to be interpreted in binary. Depending on the drive's configuration, the same condition can also be issued as an alarm (A) or without any reaction (N) instead of a fault.

Why it appears

  • The encoder connected as Encoder 2 signals a set error bit via the serial protocol — it reports an internal error on its own side.

What to check

  1. Read the fault value in r0949 and interpret it in binary to see which error information the encoder sent.
  2. For fault value, bit 0 = 1: in the case of an EnDat encoder, F31111 may provide further details about the reported error — open that code and continue there.

Reading the message value

  • The drive writes the fault value into r0949; interpret the value in binary.
  • Bit 0: fault bit in the position protocol.

Parameters the manual names

  • r0949 — holds the fault value of F32112; read it in binary, where bit 0 marks the fault bit that Encoder 2 signalled in the position protocol.

Acknowledging and restarting

F32112 is acknowledged with pulse inhibit: after the drive's stop reaction has removed the pulses, acknowledge the fault and restart the drive. When the condition is only signalled as an alarm (A) or without reaction (N), no acknowledgement takes place.

The same on every family

Every manual that describes F32112 gives it the same reaction, acknowledgement and message class.

Drive familyReactionAcknowledgeMessage classComponentManual
S120, S150Servo: OFF1 (IASC/DCBRK, NONE, OFF2, OFF3) Hla: OFF1 (NONE, OFF2, OFF3)PULSE INHIBITActual position/speed value incorrect or not available (11)Encoder 2SINAMICS S120, S150 List Manual · p. 3086

The drives this code lives on

F32112 is described for S120, S150. These are the converters of those families in our catalogue — price on request.

Questions technicians ask

What does fault F32112 in SINAMICS mean?

Encoder 2 has signalled a set error bit via the serial protocol, i.e. the encoder itself reports an internal error. The received information is the fault value in r0949, to be read in binary.

How is F32112 acknowledged and cleared?

The fault acknowledges with pulse inhibit: let the drive's stop reaction remove the pulses, acknowledge the fault, then restart the drive. As an alarm (A) or without reaction (N) no acknowledgement takes place.

What is the fault value of F32112?

It is stored in r0949 and must be interpreted in binary. Bit 0 = 1 means the fault bit in the position protocol was received.

Where do I find more detail behind F32112?

For fault value, bit 0 = 1 with an EnDat encoder, the remedy refers to F31111, which may provide further details about the reported error.

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 F32xxx group · SINAMICS manuals · Siemens manuals