What it means
A07932 «Brake does not close» is an alarm of the motor holding brake function. The drive outputs it as long as bit 5 of the motor holding brake status word r1229 is set (r1229.5 = 1). While this condition is present, the drive suppresses OFF1 and OFF3 so that a load driving the motor cannot accelerate the drive — OFF2 remains effective.
Why it appears
- The alarm is output for r1229.5 = 1, i.e. while bit 5 of the motor holding brake status word r1229 is set to 1.
What to check
- Check the functionality of the motor holding brake.
- Check the feedback signal that reports the brake as closed — the signal assigned in p1222 (BI: Motor holding brake feedback signal brake closed).
- Observe r1229 (motor holding brake status word): the alarm condition corresponds to r1229.5 = 1, so bit 5 shows whether the condition is still present.
Parameters the manual names
- p1217 (Motor holding brake closing time / Brake t_close) — the closing time of the motor holding brake; the alarm description references this parameter together with r1229.
- p1222 (BI: Motor holding brake feedback signal brake closed / Brake fdbk closed) — the «brake closed» feedback signal of the motor holding brake; checking this feedback is part of the remedy for this alarm.
Acknowledging and restarting
A07932 requires no acknowledgment. The alarm is present while r1229.5 = 1 and ends when bit 5 of r1229 returns to 0. Keep in mind while the alarm is active: OFF1 and OFF3 are suppressed — OFF2 remains effective.
The same on every family
Every manual that describes A07932 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) | Motor | SINAMICS S120, S150 List Manual · p. 2886 |
| G130, G150 | NONE | NONE | Application/technological function faulted (17) | Motor | SINAMICS G130, G150 List Manual · p. 1614 |
The drives this code lives on
A07932 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 SINAMICS alarm A07932 mean?
It is the alarm «Brake does not close» of the motor holding brake function. The drive outputs it while bit 5 of the motor holding brake status word r1229 is set (r1229.5 = 1).
Why does the drive ignore OFF1 and OFF3 when A07932 is active?
For r1229.5 = 1, OFF1/OFF3 are suppressed so that a load driving the motor cannot accelerate the drive. OFF2 remains effective while the condition is present.
How do I clear A07932?
Check the functionality of the motor holding brake and the feedback signal assigned in p1222. No acknowledgment is needed — the alarm ends when bit 5 of r1229 returns to 0.
Which parameters belong to A07932?
p1217 (Motor holding brake closing time) and p1222 (BI: Motor holding brake feedback signal brake closed), plus the status word r1229 whose bit 5 triggers the alarm.
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