Siemens SINAMICS S Series - A30031 Power unit: Hardware current limiting, phase U; A30032 Power unit: Hardware current limiting, phase V; A30033 Power unit: Hardware current limiting, phase W

List of faults and alarms
Faults and Alarms
3-1615
© Siemens AG 2007 All Rights Reserved
SINAMICS S List Manual (LH1), 07/2007
10: Wait for the end of the de-bounce time of the main contactor after pre-charging has been completed
11: Pre-charging completed, ready for pulse enable
12: It was detected that the STO terminal was energized at the power unit
See also: p0210 (Drive unit line supply voltage)
Remedy: - check the line supply voltage
- check the line supply.
- line contactor was closed during the DC link fast discharge by the braking module, the pre-charging resistor must
cool down, check the interconnection of the external line contactor.
See also: p0210 (Drive unit line supply voltage)
A30031 Power unit: Hardware current limiting, phase U
Drive object: All objects
Reaction: NONE
Acknowledge: NONE
Cause: Hardware current limit for phase U responded. The pulsing in this phase is inhibited for one pulse period.
- closed-loop control is incorrectly parameterized.
- fault in the motor or in the power cables.
- the power cables exceed the maximum permissible length.
- motor load too high
- power unit defective.
Remedy: - check the motor data.
- 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 the length of the power cables.
A30032 Power unit: Hardware current limiting, phase V
Drive object: All objects
Reaction: NONE
Acknowledge: NONE
Cause: Hardware current limit for phase V responded. The pulsing in this phase is inhibited for one pulse period.
- closed-loop control is incorrectly parameterized.
- fault in the motor or in the power cables.
- the power cables exceed the maximum permissible length.
- motor load too high
- power unit defective.
Remedy: - check the motor data.
- 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 the length of the power cables.
A30033 Power unit: Hardware current limiting, phase W
Drive object: All objects
Reaction: NONE
Acknowledge: NONE
Cause: Hardware current limit for phase W responded. The pulsing in this phase is inhibited for one pulse period.
- closed-loop control is incorrectly parameterized.
- fault in the motor or in the power cables.
- the power cables exceed the maximum permissible length.
- motor load too high
- power unit defective.
Remedy: - check the motor data.
- 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 the length of the power cables.