What it means
Alarm A30032 reports that the hardware current limit for phase V has responded in the power unit. The protective response is momentary: the pulsing in this phase is inhibited for one pulse period. The manuals add a note about how this alarm appears: Alarm A30031 is always output if, for a Power Module, the hardware current limiting of phase U, V or W responds.
Since this alarm means that the phase V current limiting responded, A30031 is output alongside it.
Why it appears
- The closed-loop control is parameterized incorrectly for the motor actually connected.
- There is a fault in the motor or in the power cables.
- The power cables are longer than the maximum permissible length.
- The motor load is too high.
- The power unit itself is defective.
What to check
- Check the motor data; if it does not match the drive settings, recalculate the control parameters by setting p0340 = 3.
- As an alternative to recalculating, run a motor data identification with p1910 = 1 and p1960 = 1.
- Check the motor circuit configuration (star/delta).
- Check the motor load.
- Check the power cable connections.
- Check the power cables for short-circuit or ground fault.
- Check that the length of the power cables does not exceed the maximum permissible length.
Parameters the manual names
- p0340 — set to 3 so the drive recalculates the control parameters from the motor data you have checked.
- p1910 — set to 1 to start the motor data identification the manual offers as an alternative to recalculating the control parameters.
- p1960 — set to 1 together with p1910 for that motor data identification.
Acknowledging and restarting
No acknowledgment is required for this alarm and the manuals list no reset steps for it. The protective response it reports is momentary: the pulsing in phase V is inhibited for one pulse period.
What differs between the drive families
Straight from the manuals' own fields — A30032 is not described identically everywhere.
| Drive family | Reaction | Acknowledge | Message class | Component | Manual |
|---|---|---|---|---|---|
| S120, S150 | NONE | NONE | Power electronics faulted (5) | Power Module | SINAMICS S120, S150 List Manual · p. 2949 |
| G130, G150 | NONE | NONE | Power electronics faulted (5) | Power Module | SINAMICS G130, G150 List Manual · p. 1660 |
| G120 | — | NONE | Power electronics faulted (5) | — | SINAMICS G120 · p. 912 |
| G120XA | — | NONE | — | — | SINAMICS G120XA PN converter · p. 1158 |
The drives this code lives on
A30032 is described for G120, G120XA, G130, G150, S120, S150. These are the converters of those families in our catalogue — price on request.
Questions technicians ask
What does SINAMICS alarm A30032 mean?
The hardware current limit for phase V has responded in the power unit, and the pulsing in that phase is inhibited for one pulse period as a protective response.
Does alarm A30032 need to be acknowledged?
No. The manuals require no acknowledgment for this alarm and list no reset steps; the pulse inhibition lasts only one pulse period.
Why does A30032 keep appearing on my drive?
Possible reasons are incorrectly parameterized closed-loop control, a fault in the motor or power cables, power cables beyond their maximum permissible length, a motor load that is too high, or a defective power unit. Check the motor data and recalculate with p0340 = 3, or run a motor data identification with p1910 = 1 and p1960 = 1.
Why is alarm A30031 shown together with A30032?
The manuals note that A30031 is always output when the hardware current limiting of phase U, V or W responds on a Power Module, so it appears alongside the phase V 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 A30xxx group · SINAMICS manuals · Siemens manuals