What it means
A07506 reports that the EPOS function and the position controller LR are not completely wired together: the BICO interconnections that carry the setpoints between them have not been made, although the interconnections that carry the fine resolutions have. The drive watches this pairing of interconnections and raises the alarm as soon as the setpoint path is absent while the fine-resolution path exists.
Why it appears
- The BICO interconnections that would transfer the position and velocity setpoints from EPOS to the position controller LR were never set.
- At the same time, the interconnections for the fine resolutions have been set — this combination is exactly what triggers the alarm.
What to check
- Clear the existing fine-resolution interconnections first: enter the value 0 at CI: p2694 and CI: p2695.
- Interconnect the setpoints: assign r2665 to CI: p2530 and r2666 to CI: p2531.
- Re-interconnect the fine resolutions: assign r2696 to CI: p2694 and r2697 to CI: p2695.
Parameters the manual names
- p2530 (CI: LR position setpoint) — the input that must receive the EPOS position setpoint r2665 in step 2.
- p2531 (CI: LR velocity setpoint) — the input that must receive the EPOS velocity setpoint r2666 in step 2.
- r2665 (CO: EPOS position setpoint) — the source signal interconnected to p2530.
- r2666 (CO: EPOS velocity setpoint) — the source signal interconnected to p2531.
- p2694 (CI: LR supplementary setpoint position) — carries the position fine resolution; it is set to 0 in step 1 and then interconnected to r2696 in step 3.
- p2695 (CI: LR supplementary setpoint velocity) — carries the velocity fine resolution; it is set to 0 in step 1 and then interconnected to r2697 in step 3.
- r2696 (CO: EPOS position setpoint fine resolution) — the source signal for p2694 in step 3.
- r2697 (CO: EPOS velocity setpoint fine resolution) — the source signal for p2695 in step 3.
Acknowledging and restarting
No acknowledgement is required for this alarm. Once the interconnections exist in the order given above — setpoints first, then the fine resolutions — the alarm clears by itself.
The same on every family
Every manual that describes A07506 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) | Control Unit (CU) | SINAMICS S120, S150 List Manual · p. 2834 |
| G130, G150 | NONE | NONE | Application/technological function faulted (17) | Control Unit (CU) | SINAMICS G130, G150 List Manual · p. 1571 |
The drives this code lives on
A07506 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 A07506 mean on a SINAMICS drive?
It reports that the BICO interconnections carrying the setpoints between EPOS and the position controller LR are missing, while the interconnections for the fine resolutions have been set.
How do I clear A07506?
Work through the three steps in order: set CI: p2694 and CI: p2695 to 0, then interconnect CI: p2530 = r2665 and CI: p2531 = r2666, and finally CI: p2694 = r2696 and CI: p2695 = r2697.
Does A07506 have to be acknowledged?
No. As soon as the interconnections have been corrected in the prescribed order, the alarm clears by itself.
Which parameters are involved in A07506?
The setpoint inputs p2530 and p2531, the fine-resolution inputs p2694 and p2695, and the EPOS output signals r2665, r2666, r2696 and r2697 that feed them.
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