Siemens SINAMICS S210 - Power Unit: Supply Undervoltage; Power Unit: Undervoltage Alarm; Power Unit: Fan Defective

Cause: For the power unit power supply, the upper 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.
Reaction upon F: NONE (OFF1, OFF2, OFF3)
Acknowl. upon F: IMMEDIATELY (POWER ON)
F30045 Power unit: Supply undervoltage
Message value: %1
Drive object: All objects
Reaction: OFF2
Acknowledge: IMMEDIATELY (POWER ON)
Cause: Power supply fault in the power unit.
- the voltage monitor signals an undervoltage fault on the module.
The following applies for CU31x:
- the voltage monitoring on the DAC board signals an undervoltage fault on the module.
For S120M, the following applies:
- this message is displayed for undervoltage or overvoltage.
Remedy: - check the power supply of the power unit.
- carry out a POWER ON (switch-off/switch-on) for the component.
- replace the module if necessary.
A30046 (F) Power unit: Undervoltage alarm
Message value: %1
Drive object: All objects
Reaction: NONE
Acknowledge: NONE
Cause: Before the last restart, a problem occurred at the power unit power supply.
The voltage monitor in the internal FPGA of the PSA signals an undervoltage fault on the module.
Alarm value (r2124, interpret decimal):
Register value of the voltage fault register.
Remedy: - check the 24 V DC voltage supply to power unit.
- carry out a POWER ON (switch-off/switch-on) for the component.
- replace the module if necessary.
Reaction upon F: Servo: NONE (OFF1, OFF2)
Acknowl. upon F: IMMEDIATELY (POWER ON)
A30048 Power unit: fan defective
Message value: Fault cause: %1 bin
Drive object: All objects
Reaction: NONE
Acknowledge: NONE
Faults and alarms
13.2 List of faults and alarms
SINAMICS S210 servo drive system
508 Operating Instructions, 12/2017, A5E41702836B AA