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System messages
12.3 Faults and alarms
Cause:
The temperature in the rectifier of the power unit has exceeded the permissible temperature limit.
- Insufficient cooling, fan failure.
- Overload.
- Ambient temperature too high.
- Line phase failure.
Fault value (r0949, interpret decimal):
Temperature [0.01 °C].
Remedy:
- Check whether the fan is running.
- Check the fan elements.
- Check whether the ambient temperature is in the permissible range.
- Check the motor load.
- Check the line phases.
Notice:
This fault can only be acknowledged after the alarm threshold for alarm A05004 has been undershot.
F30040
Power unit: 24/48 V undervoltage
Message class:
Supply voltage fault (undervoltage) (3)
Message value:
Channel: %1, voltage: %2 [0.1 V]
Component:
Power Unit
Response:
OFF2
Acknowledgment: IMMEDIATELY
Cause:
The undervoltage threshold of the 24 V power supply for the power unit was fallen below for longer than 3 ms.
Note:
- For booksize power units, the undervoltage threshold is 15 V.
- For CU310-2, CUA31 and CUA32 the undervoltage threshold is 16 V.
- for all other power units (e.g. S120M), the undervoltage threshold depends on the power unit, and is not displayed.
Fault value (r0949, interpret hexadecimal):
yyxxxx hex: yy = channel, xxxx = voltage [0.1 V]
yy = 0: 24 V power supply
yy = 1: 48 V power supply
Remedy:
- Check the power supply of the power unit.
- Carry out a POWER ON (switch-off/switch-on) for the component.
A30041
Power unit: Undervolt 24/48 V alarm
Message class:
Supply voltage fault (undervoltage) (3)
Message value:
Channel: %1, voltage: %2 [0.1 V]
Component:
Power Unit
Response:
NONE
Acknowledgment: NONE
Cause:
For the power unit power supply, the lower threshold has been violated.
Alarm value (r2124, interpret hexadecimal):
yyxxxx hex: yy = channel, xxxx = voltage [0.1 V]
yy = 0: 24 V power supply
yy = 1: 48 V power supply
Remedy:
- Check the power supply of the power unit.
- Carry out a POWER ON (switch-off/switch-on) for the component.
A30042
Power unit: Fan has reached the maximum operating hours
Message class:
Power electronics faulted (5)
Message value:
%1
552
SINAMICS S200 PROFINET servo drive system with SIMOTICS S-1FL2
Operating Instructions, 11/2023, FW V6.3, A5E51646752B AB
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