What it means
A07558 is the Encoder 2 message of the EPOS function. While the encoder is being adjusted, the drive receives the reference point coordinate through connector input CI:p2599. The message appears when this coordinate lies outside the half of the encoder range
, so the drive cannot set it as the actual axis position. The largest coordinate the drive accepts is shown in the supplementary information belonging to the message. Depending on the drive configuration, the same condition can also be raised as a fault instead of an alarm.
Why it appears
- During encoder adjustment the drive takes over the reference point coordinate that arrives at connector input CI:p2599.
- The coordinate received there lies outside half of the encoder range, so the drive cannot set it as the actual axis position.
- The maximum permissible value is displayed in the supplementary information of the message.
What to check
- Open the supplementary information of the message and read off the maximum permissible reference point coordinate.
- Set the reference point coordinate to a value smaller than this maximum.
- Follow the cross-reference to p2598 (EPOS reference point coordinate signal source) to see from which signal source the coordinate handed to CI:p2599 is taken.
Parameters the manual names
- p2599 (CO: EPOS reference point coordinate value): holds the coordinate that reaches the encoder adjustment via connector input CI:p2599; set it smaller than the value given in the supplementary information.
- p2598 (CI: EPOS reference point coordinate signal source): selects the signal source from which the reference point coordinate is supplied; the remedy names this parameter as a cross-reference.
Acknowledging and restarting
As an alarm the message needs no acknowledgement; it clears by itself once a reference point coordinate within the permissible range is set. If the drive configuration raises the same condition as a fault, the drive reacts with OFF1 (OFF2 and OFF3 are the alternative reactions) and the fault must be acknowledged IMMEDIATELY before the drive can be restarted.
The same on every family
Every manual that describes A07558 gives it the same reaction, acknowledgement and message class.
| Drive family | Reaction | Acknowledge | Message class | Component | Manual |
|---|---|---|---|---|---|
| S120, S150 | NONE | NONE | Application/technological function faulted (17) | None | SINAMICS S120, S150 List Manual · p. 2845 |
| G130, G150 | NONE | NONE | Application/technological function faulted (17) | None | SINAMICS G130, G150 List Manual · p. 1580 |
The drives this code lives on
A07558 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 A07558 mean on a SINAMICS drive?
It is the Encoder 2 message of the EPOS function: the reference point coordinate received via connector input CI:p2599 during encoder adjustment lies outside half of the encoder range and cannot be set as the actual axis position.
How do I clear A07558?
Set the reference point coordinate to a value smaller than the maximum shown in the supplementary information of the message. Parameter p2598 shows the signal source from which the coordinate is supplied.
Does A07558 have to be acknowledged?
As an alarm it needs no acknowledgement and clears itself once a permissible coordinate is set. If the drive raises the condition as a fault instead, it reacts with OFF1 (OFF2, OFF3) and the fault must be acknowledged IMMEDIATELY.
Which parameters belong to A07558?
p2599 contains the EPOS reference point coordinate value that arrives at CI:p2599, and p2598 selects the signal source for that coordinate.
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