What it means
A49924 reports that a protective breaker in the circuit of the power unit supply has tripped. The Control Unit outputs this message via the signal source interlinked at binector input p6577[9]. On S120 and S150 the code is issued as an alarm; depending on the drive configuration, the same condition can also be raised as fault F49924.
Why it appears
- A protective breaker in the supply circuit of the power unit has tripped.
What to check
- Check the power unit supply circuit and the protective breaker in this circuit.
Parameters the manual names
- p6577 — BI: circuit monitoring functions signal source. Index [9] of this binector input is the signal source via which the Control Unit outputs this message.
Acknowledging and restarting
As an alarm, A49924 requires no acknowledgement. If the drive is configured to raise the same condition as fault F49924, the fault must be acknowledged IMMEDIATELY.
The same on every family
Every manual that describes A49924 gives it the same reaction, acknowledgement and message class.
| Drive family | Reaction | Acknowledge | Message class | Component | Manual |
|---|---|---|---|---|---|
| S120, S150 | NONE | NONE | General drive fault (19) | None | SINAMICS S120, S150 List Manual · p. 3293 |
The drives this code lives on
A49924 is described for S120, S150. These are the converters of those families in our catalogue — price on request.
Questions technicians ask
What does A49924 mean on a SINAMICS drive?
It reports that a protective breaker in the circuit of the power unit supply has tripped. The message is output via the signal source interlinked at binector input p6577[9] of the Control Unit.
How do I clear alarm A49924?
Check the power unit supply circuit and remove the cause of the trip. As an alarm the message needs no acknowledgement; only when it is configured as fault F49924 must it be acknowledged IMMEDIATELY.
Can A49924 also appear as a fault?
Yes — depending on the drive configuration, the same condition can also be issued as F49924. The affected drive object is then switched off with OFF1; a different response can be set for each drive object.
Which parameter is associated with A49924?
p6577, the binector input for the circuit monitoring functions signal source. Index [9] is the signal source via which the Control Unit outputs this message.
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 A49xxx group · SINAMICS manuals · Siemens manuals