Siemens G130 - F05050 Parallel circuit: Pulse enable in spite of pulse inhibit; F05051 Parallel circuit: Power unit pulse enable missing; A05052 (F) Parallel circuit: Illegal current asymmetry

SINAMICS G130/G150
List Manual (LH2), 07/2016, A5E03263479A
1521
4 Faults and alarms
4.2 List of faults and alarms
F05050 Parallel circuit: Pulse enable in spite of pulse inhibit
Message value: %1
Message class: Application/technological function faulted (17)
Drive object: B_INF, VECTOR_G
Component: Power Module Propagation: GLOBAL
Reaction: Vector: OFF2 (NONE, OFF1, OFF3, STOP2)
Infeed: OFF2 (NONE, OFF1)
Acknowledge: IMMEDIATELY
Cause: A power unit signals that the pulses are enabled although the pulses are inhibited.
Fault value (r0949, interpret decimal):
Number of the power unit involved.
Remedy: The power unit is defective and must be replaced.
F05051 Parallel circuit: Power unit pulse enable missing
Message value: %1
Message class: Application/technological function faulted (17)
Drive object: B_INF, VECTOR_G
Component: Power Module Propagation: GLOBAL
Reaction: Vector: OFF2 (NONE, OFF1, OFF3, STOP2)
Infeed: OFF2 (NONE, OFF1)
Acknowledge: IMMEDIATELY
Cause: For one or several power units, the pulses were not able to be enabled.
Fault value (r0949, interpret decimal):
Number of the power unit involved.
Remedy: - acknowledge power unit faults that are still present.
- inhibit the pulses of the power unit involved (p7001).
A05052 (F) Parallel circuit: Illegal current asymmetry
Message value: %1
Message class: Application/technological function faulted (17)
Drive object: B_INF, VECTOR_G
Component: Power Module Propagation: GLOBAL
Reaction: NONE
Acknowledge: NONE
Cause: The deviation of the individual currents of the power units exceeds the alarm threshold specified in p7010.
Alarm value (r2124, interpret decimal):
1: Phase U.
2: Phase V.
3: Phase W.
Remedy: - inhibit the pulses of the faulted power unit (p7001).
- check the connecting cables. Loose contacts can cause current spikes.
- the motor reactors are non-symmetrical or faulty and must be replaced.
- the CTs must be calibrated or replaced.
Reaction upon F: Vector: NONE (OFF1, OFF2, OFF3, STOP2)
Infeed: NONE (OFF1, OFF2)
Acknowl. upon F: IMMEDIATELY