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Fault · SINAMICS G130, G150, S120, S150

F32885Encoder 2 DRIVE-CLiQ (CU): Cyclic data transfer error

What it means

F32885 reports a cyclic data transfer error on the DRIVE-CLiQ connection between the Sensor Module of encoder 2 and the Control Unit: the nodes involved do not send and receive in synchronism. The manuals describe the fault identically for every converter family that lists it. Depending on how the drive is configured, the same condition can also be output as an alarm or without any reaction instead of as a fault.

Why it appears

  • A DRIVE-CLiQ communication error has occurred on the path from the Sensor Module (encoder 2) involved to the Control Unit.
  • The nodes on this link do not send and receive in synchronism.

What to check

  1. Read the message value: it is coded in r0949 (or in r2124 when the condition came as an alarm) as 0000yyxx hex and tells you the component number (yy) and the fault cause (xx).
  2. Check the power supply voltage of the component involved.
  3. Carry out a POWER ON (switch-off/switch-on).
  4. Replace the component involved.

Reading the message value

The drive enters the component number and the fault cause into the message value; in r0949 or r2124 this reads 0000yyxx hex, with yy = component number and xx = error cause. The manual decodes the fault cause as follows:

  • 26 (= 1A hex): sign-of-life bit in the receive telegram not set and the receive telegram is too early.
  • 33 (= 21 hex): the cyclic telegram has not been received.
  • 34 (= 22 hex): timeout in the telegram receive list.
  • 64 (= 40 hex): timeout in the telegram send list.
  • 98 (= 62 hex): error at the transition to cyclic operation.

Parameters the manual names

  • r0949 — fault value: read the coded message value (0000yyxx hex) here to identify the component involved and the fault cause of F32885.
  • r2124 — alarm value: carries the same coded value when the condition is output as an alarm.
  • p9915 — DRIVE-CLiQ data transfer error shutdown threshold master (DQ fault master): the remedy for this fault cross-references this shutdown threshold.

Acknowledging and restarting

Acknowledge the fault immediately; only after it has been acknowledged can the drive be restarted. When the drive's configuration outputs the same condition as an alarm or without any reaction, no acknowledgement is required. After remedying the cause — in particular after the POWER ON (switch-off/switch-on) — restart the drive.

What differs between the drive families

Straight from the manuals' own fields — F32885 is not described identically everywhere.

Drive familyReactionAcknowledgeMessage classComponentManual
S120, S150Servo: OFF1 (IASC/DCBRK, NONE, OFF2, OFF3) Vector: OFF1 (IASC/DCBRK, NONE, OFF2, OFF3) Hla: OFF1 (NONE, OFF2, OFF3)IMMEDIATELYInternal (DRIVE-CLiQ) communication error (12)Sensor Module Encoder 2SINAMICS S120, S150 List Manual · p. 3123
G130, G150OFF1 (IASC/DCBRK, NONE, OFF2, OFF3)IMMEDIATELYInternal (DRIVE-CLiQ) communication error (12)Sensor Module Encoder 2SINAMICS G130, G150 List Manual · p. 1800

The drives this code lives on

F32885 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 fault F32885 mean on a SINAMICS drive?

It reports a DRIVE-CLiQ cyclic data transfer error between the Sensor Module of encoder 2 and the Control Unit: the nodes do not send and receive in synchronism. The same condition can also be configured as an alarm or as a message without reaction.

How do I decode the F32885 fault value in r0949?

The value is coded 0000yyxx hex, where yy is the component number and xx the fault cause. For example, 33 (= 21 hex) means the cyclic telegram was not received and 64 (= 40 hex) a timeout in the telegram send list.

How is F32885 cleared?

Check the power supply voltage of the component involved, carry out a POWER ON (switch-off/switch-on) and replace the component involved. The fault must then be acknowledged immediately.

Does F32885 have to be acknowledged?

Yes — as a fault it must be acknowledged immediately before the drive can restart. In the alarm and no-reaction variants, no acknowledgement is required.

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