What it means
A07597 is the message Encoder 2: Reference function interrupted
: a reference function that had been activated for Encoder 2 — either a reference mark search or a measuring probe evaluation — was interrupted while it was running. The manuals for the G130/G150 and S120/S150 families describe the message identically. Depending on how the drive is configured, the same condition can also be raised as a fault or as a message without any reaction.
Why it appears
- An encoder fault has occurred; the encoder signals this with Gn_ZSW.15 = 1.
- The position actual value was set during an activated reference function.
- Reference mark search and measuring probe evaluation were activated at the same time (BI: p2508 and BI: p2509 = 1 signal).
- The activated reference function (reference mark search or measuring probe evaluation) was deactivated (BI: p2508 and BI: p2509 = 0 signal).
What to check
- Check the causes listed above and resolve them.
- Reset the control: put BI p2508 and BI p2509 to 0 signal.
- Activate the requested function again — the reference mark search or the measuring probe evaluation.
Parameters the manual names
- p2508 — the binary input (BI) that activates the reference mark search. For this message it matters twice: p2508 and p2509 must not be at 1 signal simultaneously, and p2508 must be returned to 0 signal so the control can be reset.
- p2509 — the binary input (BI) that activates the measuring probe evaluation. Handle it together with p2508: switching both to 1 signal interrupts the function, and the reset of the control is done with 0 signal on both inputs.
Acknowledging and restarting
The remedy is not a panel acknowledgement but a reset of the control: resolve the cause, apply 0 signal to BI p2508 and BI p2509, then activate the requested function (reference mark search or measuring probe evaluation) again. If the drive is configured to issue the condition as a fault, it reacts with OFF1 (OFF2, OFF3) and the fault must be acknowledged IMMEDIATELY before it can be restarted; as a message without reaction no acknowledgement is required.
What differs between the drive families
Straight from the manuals' own fields — A07597 is not described identically everywhere.
| Drive family | Reaction | Acknowledge | Message class | Component | Manual |
|---|---|---|---|---|---|
| S120, S150 | — | — | Application/technological function faulted (17) | None | SINAMICS S120, S150 List Manual · p. 2856 |
| G130, G150 | NONE | NONE | Application/technological function faulted (17) | None | SINAMICS G130, G150 List Manual · p. 1591 |
The drives this code lives on
A07597 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 alarm A07597 mean on a SINAMICS drive?
It reports that the reference function of Encoder 2 — a reference mark search or a measuring probe evaluation — was interrupted while it was active. Depending on the configuration, the same condition can also appear as a fault or without any reaction.
Why does A07597 occur?
The manual lists four causes: an encoder fault (Gn_ZSW.15 = 1), the position actual value was set during an activated reference function, reference mark search and measuring probe evaluation were switched on together (BI: p2508 and p2509 = 1 signal), or the activated function was deactivated (both to 0 signal).
How do I clear A07597?
Resolve the underlying cause, then reset the control by putting BI p2508 and p2509 to 0 signal and activate the requested function again. If the condition was raised as a fault, it must be acknowledged IMMEDIATELY.
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