What it means
A01782 is an alarm from the SI Motion Safe Brake Test (SBT). It reports that the brake test was canceled as a result of incorrect control. The drive writes an alarm value to r2124, to be interpreted binary; it tells you which condition canceled the test (decoded below). In the configuration-error case, alarm A01785 is output as well.
Why it appears
- The Safe Brake Test (SBT) was canceled as a result of incorrect control.
- Which condition canceled the test is shown by the binary alarm value in r2124.
What to check
- Check the parameterization of the brake test in p10202.
- Check whether alarm A01785 is also present and, if so, evaluate it.
Reading the message value
- The drive writes the reason for the cancellation into r2124 as a binary value (“Fault cause: %1 bin”).
- Alarm value 0: the brake test was canceled as a result of a fault (brake opening time or brake closing time exceeded).
- Bit 0: the safe brake test was canceled by resetting the brake test selection.
- Bit 1: the safe brake test was canceled by resetting the brake test start.
- Bit 2: the brake that was selected at the start of the brake test has not been configured in p10202.
When starting the brake test, as a result of the test top selection, brake 1 is not configured as internal brake.
This is a brake test configuration error; alarm A01785 is also output in this case.
Parameters the manual names
- r2124 — alarm value: read here, interpreted binary, which condition canceled the brake test.
- p10202 — SI Motion SBT brake selection: check (and correct, if necessary) the brake test parameterization here; bit 2 of the alarm value points to a brake that is not configured in p10202.
Acknowledging and restarting
After checking the brake test parameterization in p10202 and evaluating alarm A01785 if it is present, carry out a safe acknowledgment. If required, restart the brake test.
What differs between the drive families
Straight from the manuals' own fields — A01782 is not described identically everywhere.
| Drive family | Reaction | Acknowledge | Message class | Component | Manual |
|---|---|---|---|---|---|
| S120, S150 | — | — | Safety monitoring channel has identified an error (10) | None | SINAMICS S120, S150 List Manual · p. 2701 |
| G130, G150 | NONE | NONE | Safety monitoring channel has identified an error (10) | None | SINAMICS G130, G150 List Manual · p. 1481 |
The drives this code lives on
A01782 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 A01782 mean?
It reports that the Safe Brake Test (SBT) was canceled as a result of incorrect control. The binary alarm value in r2124 shows which condition canceled the test.
How do I clear SINAMICS alarm A01782?
Check the brake test parameterization in p10202, check whether alarm A01785 is also present and evaluate it, then carry out a safe acknowledgment. If required, restart the brake test.
What does bit 2 of the A01782 alarm value mean?
It means the brake selected at the start of the brake test has not been configured in p10202 — a brake test configuration error. The drive also outputs alarm A01785 in this case.
Which parameters belong to alarm A01782?
p10202 (SI Motion SBT brake selection) holds the brake test parameterization that must be checked. The alarm value explaining the cancellation is read from r2124.
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 A01xxx group · SINAMICS manuals · Siemens manuals