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Alarm · SINAMICS S120, S150

A07507EPOS: reference point cannot be set

What it means

A07507 — EPOS: reference point cannot be set signals that the EPOS reference point could not be set. The alarm itself names the reason: after the reference point correction, the position setpoint lies outside the traversing range limits.

Why it appears

  • After the reference point correction, the position setpoint lies outside the traversing range limits.

What to check

  1. Optimize the position controller.
  2. Check where the EPOS reference point coordinate p2599 sits: because a position controller deviation is possible, the coordinate should not be placed directly at the traversing range limits.

Parameters the manual names

  • p2599 — CO: EPOS reference point coordinate value. For this alarm, set the coordinate so that it is not placed directly at the traversing range limits, since a position controller deviation is possible.

Acknowledging and restarting

This alarm requires no acknowledgment. Remove the cause as described above — optimize the position controller and keep p2599 away from the traversing range limits — so that the EPOS reference point can be set again.

The same on every family

Every manual that describes A07507 gives it the same reaction, acknowledgement and message class.

Drive familyReactionAcknowledgeMessage classComponentManual
S120, S150NONENONEApplication/technological function faulted (17)MotorSINAMICS S120, S150 List Manual · p. 2834

The drives this code lives on

A07507 is described for S120, S150. These are the converters of those families in our catalogue — price on request.

Questions technicians ask

What does alarm A07507 mean in SINAMICS?

It is the EPOS alarm 'reference point cannot be set': after the reference point correction, the position setpoint lies outside the traversing range limits.

How do I fix alarm A07507?

Optimize the position controller and do not place the reference point coordinate p2599 directly at the traversing range limits, because a position controller deviation is possible.

Does A07507 need to be acknowledged?

No. The alarm triggers no reaction, so no acknowledgment is needed; correct the reference point setting instead.

Which parameter belongs to A07507?

p2599, the EPOS reference point coordinate value; for this alarm it should not sit directly at the traversing range limits.

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 A07xxx group · SINAMICS manuals · Siemens manuals