Siemens SINAMICS S Series - F30022 Power unit: Monitoring V_ce; A30023 Power unit: Overtemperature thermal model alarm; F30024 Power unit: Overtemperature thermal model

List of faults and alarms
Faults and Alarms
3-1613
© Siemens AG 2007 All Rights Reserved
SINAMICS S List Manual (LH1), 07/2007
F30022 Power unit: Monitoring V_ce
Drive object: All objects
Reaction: OFF2
Acknowledge: POWER ON
Cause: In the power unit, the monitoring of the collector-emitter voltage (V_ce) of the semiconductor has responded.
Possible causes:
- fiber-optic cable interrupted.
- power supply of the IGBT gating module missing.
- short-circuit at the Motor Module output.
- defective semiconductor in the power unit.
Fault value (r0949, interpret binary):
Bit 0: Short-circuit in phase U
Bit 1: Short circuit in phase V
Bit 2: Short-circuit in phase W
Bit 3: Light transmitter enable defective
Bit 4: V_ce group fault signal interrupted
See also: r0949 (Fault value)
Remedy: - check the fiber-optic cable and if required, replace.
- check the power supply of the IGBT gating module (24 V).
- check the power cable connections.
- select the defective semiconductor and replace.
A30023 Power unit: Overtemperature thermal model alarm
Drive object: All objects
Reaction: NONE
Acknowledge: NONE
Cause: The temperature difference between the heatsink and chip has exceeded the permissible limit value.
- the permissible load duty cycle was not maintained.
- insufficient cooling, fan failure.
- overload
- ambient temperature too high.
- pulse frequency too high.
See also: r0037 (Control Unit temperature)
Remedy: - adapt the load duty cycle.
- check whether the fan is running.
- check the fan elements
- check whether the ambient temperature is in the permissible range.
- check the motor load.
- reduce the pulse frequency if this is higher than the rated pulse frequency.
F30024 Power unit: Overtemperature thermal model
Drive object: All objects
Reaction: OFF2
Acknowledge: IMMEDIATELY
Cause: The temperature difference between the heatsink and chip has exceeded the permissible limit value.
- the permissible load duty cycle was not maintained.
- insufficient cooling, fan failure.
- overload
- ambient temperature too high.
- pulse frequency too high.
See also: r0037 (Control Unit temperature)
Remedy: - adapt the load duty cycle.
- check whether the fan is running.
- check the fan elements
- check whether the ambient temperature is in the permissible range.
- check the motor load.
- reduce the pulse frequency if this is higher than the rated pulse frequency.