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Fault · SINAMICS G130, G150, S120, S150

F07552Drive encoder: Encoder configuration not supported

What it means

F07552 (Drive encoder: Encoder configuration not supported) means that the requested encoder configuration is not supported. Only bits may be requested in p0404 that are signaled as being supported by the encoder evaluation in r0456. The fault value in r0949 identifies the unsupported configuration, the component number and the affected encoder data set. Depending on the drive's configuration, the same condition can also be output as an alarm (A).

Why it appears

  • The requested encoder configuration is not supported: the configuration requested in p0404 contains bits that the connected encoder evaluation does not signal as supported in r0456.

What to check

  1. Read the fault value in r0949 (interpret decimal) to identify the fault cause, the component number and the encoder data set involved.
  2. Check the encoder parameterization (p0400, p0404).
  3. Use the matching encoder evaluation (r0456): keep only the bits set in p0404 that r0456 signals as supported. If the fault cause is 65535 (other function), compare r0456 and p0404.

Reading the message value

  • The message value contains the fault cause (%1), the component number (%2) and the encoder data set (%3).
  • Fault value (r0949, interpret decimal): ccccbbaa hex — cccc = fault cause, bb = component number, aa = encoder data set.
  • cccc = 1: encoder sin/cos with absolute track (is supported by SME25).
  • cccc = 3: Square-wave encoder (this is supported by SMC30).
  • cccc = 4: sin/cos encoder (this is supported by SMC20, SMI20, SME20, SME25).
  • cccc = 10: DRIVE-CLiQ encoder (is supported by DQI).
  • cccc = 12: sin/cos encoder with reference mark (this is supported by SME20).
  • cccc = 15: Commutation with zero mark for separately excited synchronous motors with VECTORMV.
  • cccc = 23: Resolver (this is supported by SMC10, SMI10).
  • cccc = 65535: Other function (compare r0456 and p0404).

Parameters the manual names

  • p0400 (encoder type selection) — the selected encoder type; part of the encoder parameterization to check when this fault appears.
  • p0404 (encoder configuration effective) — shows the configuration being requested; it may only contain the bits that r0456 signals as supported.
  • r0456 (encoder configuration supported) — shows which configurations the encoder evaluation actually supports; use it to select the matching encoder evaluation.
  • r0949 (fault value) — read here, interpreted as decimal, to break the value down into fault cause, component number and encoder data set.

Acknowledging and restarting

The drive coasts down when the fault is triggered and will not start again until it has been acknowledged. Once the encoder parameterization has been corrected, acknowledge the fault — it can be acknowledged immediately, and a POWER ON also clears it — then restart the drive. Where the condition is output as an alarm (A) instead, it triggers no reaction and requires no acknowledgment.

What differs between the drive families

Straight from the manuals' own fields — F07552 is not described identically everywhere.

Drive familyReactionAcknowledgeMessage classComponentManual
S120, S150Infeed: OFF2 (NONE, OFF1) Servo: OFF2 (IASC/DCBRK, NONE, OFF1, OFF3, STOP2) Vector: OFF2 (IASC/DCBRK, NONE, OFF1, OFF3, STOP2) Hla: OFF2 (NONE, OFF1, OFF3, STOP2)Error in the parameterization / configuration / commissioning procedure (18)NoneSINAMICS S120, S150 List Manual · p. 2842
G130, G150Vector: OFF2 (IASC/DCBRK, NONE, OFF1, OFF3, STOP2) Infeed: OFF2 (NONE, OFF1)IMMEDIATELY (POWER ON)Error in the parameterization / configuration / commissioning procedure (18)NoneSINAMICS G130, G150 List Manual · p. 1577

The drives this code lives on

F07552 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 F07552 mean on a SINAMICS drive?

It means the requested encoder configuration is not supported: p0404 may only request bits that the connected encoder evaluation signals as supported in r0456.

How do I fix fault F07552?

Check the encoder parameterization (p0400, p0404) and use the matching encoder evaluation (r0456). Then acknowledge the fault — immediately or via POWER ON — and restart the drive.

How is the F07552 fault value decoded?

Read r0949 as decimal: the value ccccbbaa hex splits into cccc = fault cause, bb = component number and aa = encoder data set. The fault causes 1, 3, 4, 10, 12, 15, 23 and 65535 are listed on this page.

Can F07552 also appear as an alarm?

Yes. Depending on the drive's configuration, the same condition can also be output as an alarm (A); as an alarm it triggers no reaction and needs no acknowledgment.

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 F07xxx group · SINAMICS manuals · Siemens manuals