MTU 20 V 4000 G23 Operating Instructions Manual page 101

530 – SS P-Lube Oil Red2
Limit value 2
Cause
Second redundant lube-oil
pressure too high.
543 – AL Multiple FDH Slaves
Cause
There is more than one unit
activated as backup medium for
FDH.
544 – AL Configuration Changed
Cause
This alarm is activated if the
system configuration was
changed, e.g. due to an
exchange of the ECU or SAM.
549 – AL Power Cut-Off detected
This is an alarm from the emergency stop counting feature.
Cause
The ECU supply voltage was
switched off while the engine
was running. This may lead to
excessive pressure in the HP
fuel system which might cause
damage to the engine.
550 – SS Engine Overspeed Red2
Limit value 2
Cause
Redundant engine overspeed.
ZKP-Number: 20.480.295
Corrective action
u Check oil level, top up as necessary .
ZKP-Number: 20.555.005
Corrective action
u Contact Service.
ZKP-Number: 20.555.003
Corrective action
u This alarm remains active until either the process is made
undone or data have been transferred due to an active
maintenance job. The alarm will then be cleared automatically.
ZKP-Number: 27.001.952
Corrective action
u Instruct operators to disconnect power supply only when the
engine is at standstill.
ZKP-Number: 20.480.095
Corrective action
1. Acknowledge alarm.
2. Attempt to restart engine.
MS150093/01E 2012-06 | Troubleshooting | 101