Siemens SINAMICS S110 - A30042 Power unit: Fan operating time reached or exceeded; F30043 Power unit: Overvolt 24 V; A30044 (F) Power unit: Overvoltage 24 V alarm; F30045 Power unit: Supply undervoltage

List of faults and alarms
Faults and alarms
3-1137
© Siemens AG 2012 All Rights Reserved
SINAMICS S110 List Manual (LH7), 06/2012, 6SL3097-4AP10-0BP3
A30042 Power unit: Fan operating time reached or exceeded
Message value: %1
Drive object: SERVO_S110-CAN, SERVO_S110-DP, SERVO_S110-PN
Reaction: NONE
Acknowledge: NONE
Cause: The maximum operating time of the fan in the power unit is set in p0252.
This message indicates the following:
Fault value (r0949, decimal interpretation):
0: The maximum fan operating time is 500 hours.
1: The maximum fan operating time has been exceeded.
Remedy: Replace the fan in the power unit and reset the operating hours counter to 0 (p0251 = 0).
See also: p0251 (Operating hours counter power unit fan), p0252 (Maximum operating time power unit fan)
F30043 Power unit: Overvolt 24 V
Message value: -
Drive object: SERVO_S110-CAN, SERVO_S110-DP, SERVO_S110-PN
Reaction: OFF2
Acknowledge: POWER ON
Cause: The following applies for CU31x:
Overvoltage of the 24 V power supply for the power unit.
- the 31.5 V threshold was exceeded for more than 3 ms.
Fault value (r0949, decimal interpretation):
24 V voltage [0.1 V].
Remedy: Check the 24 V DC power supply of the power unit.
A30044 (F) Power unit: Overvoltage 24 V alarm
Message value: -
Drive object: SERVO_S110-CAN, SERVO_S110-DP, SERVO_S110-PN
Reaction: NONE
Acknowledge: NONE
Cause: The following applies for CU31x:
24 V power supply fault for the power unit.
- the 32.0 V threshold was exceeded.
Alarm value (r2124, interpret decimal):
24 V voltage [0.1 V].
Remedy: Check the 24 V DC 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: SERVO_S110-CAN, SERVO_S110-DP, SERVO_S110-PN
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.
Remedy: - check the 24 V DC voltage supply to power unit.
- carry out a POWER ON (power off/on) for the component.
- replace the module if necessary.