Parallel Circuit: Power Unit Pulse Enable Missing; Parallel Circuit: Illegal Current Dissymmetry; Parallel Circuit: Inadmissible Dc Link Voltage Dissymmetry; Parallel Circuit: Power Unit De-Activated - Siemens Sinamics S120 Diagnostic Manual

205051 <location>Parallel circuit: Power unit pulse enable missing
Message value: %1
Drive object: AFE_SINUMERIK_828, BIC_SINUMERIK_828, SIC_SINUMERIK_828
Reaction: 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).
205052 <location>Parallel circuit: Illegal current dissymmetry
Message value: %1
Drive object: AFE_SINUMERIK_828, BIC_SINUMERIK_828, SIC_SINUMERIK_828
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.
205053 <location>Parallel circuit: Inadmissible DC link voltage dissymmetry
Message value: -
Drive object: AFE_SINUMERIK_828, BIC_SINUMERIK_828, SIC_SINUMERIK_828
Reaction: NONE
Acknowledge: NONE
Cause: The deviation of the DC link voltage measured values exceeds the alarm threshold specified in p7011.
Remedy: - inhibit the pulses of the faulted power unit (p7001).
- check the DC link connecting cables.
- the DC link voltage measurement is incorrect and must be calibrated or renewed.
205054 <location>Parallel circuit: Power unit de-activated
Message value: %1
Drive object: AFE_SINUMERIK_828, BIC_SINUMERIK_828, SIC_COMBI, SIC_SINUMERIK_828
Reaction: NONE
Acknowledge: NONE
Cause: For the drive object involved, fewer power unit components connected in parallel are active than exist in the target
topology. Operation is only possible at reduced power (power derating).
Remedy: Re-activate the de-activated power unit components.
See also: p0125 (Activate/de-activate power unit components), p0895 (Activate/de-activate power unit components),
p0897 (Parking axis selection)
Alarms
Diagnostics Manual, 07/2010, 6FC5398-8BP40-0BA0
SINAMICS alarms
617