Siemens SINAMICS G150 Manual page 1548

4 Faults and alarms
4.2 List of faults and alarms
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.
Reaction upon F: NONE (OFF1, OFF2)
Acknowl. upon F: IMMEDIATELY (POWER ON)
F30047 Cooling unit: Cooling medium flow rate too low
Message value: %1
Message class: Application / technological function faulted (17)
Drive object: B_INF, VECTOR_G
Reaction: OFF2
Acknowledge: IMMEDIATELY
Cause: The flowrate of the cooling unit has fallen below the fault threshold.
Remedy: - Check the feedback signals and parameter assignment (p0260 ... p0267).
- Check the coolant feed.
- Check the thermal conductivity of the coolant.
- Check the coolant concentration.
A30048 Power unit: External fan faulty
Message value: -
Message class: External measured value / signal state outside the permissible range (16)
Drive object: B_INF, VECTOR_G
Reaction: NONE
Acknowledge: NONE
Cause: The feedback signal from the external fan indicates a fault.
- fan faulty, blocked.
- feedback signal inaccurate.
Remedy: - check the external fan and replace if necessary.
- if you are using an external fan with feedback, check its wiring (X12.2 or X13.2).
Note:
If you are using an external fan without feedback, check that the feedback terminal wiring on the power unit is
connected to ground and make this connection if necessary (X12.1/2 or X13.1/2).
A30049 Power unit: Internal fan faulty
Message value: -
Message class: Auxiliary unit faulted (20)
Drive object: B_INF, VECTOR_G
Reaction: NONE
Acknowledge: NONE
Cause: The internal fan has failed.
Remedy: Check the internal fan and replace if necessary.
F30050 Power unit: 24 V supply overvoltage
Message value: -
Message class: Supply voltage fault (undervoltage) (3)
Drive object: B_INF, VECTOR_G
Reaction: OFF2
Acknowledge: POWER ON
Cause: The voltage monitor signals an overvoltage fault on the module.
Remedy: - check the 24 V power supply.
- replace the module if necessary.
1548
SINAMICS G130/G150
List Manual (LH2), 04/2014, A5E03263479A