MTU MS15027/02E Operating Instuctions page 81

1.4520.553 – MIC5 E1 Tr1 polarity detection fail
Yellow alarm. Initiated by MIC5.
Cause
Polarity of trigger 1 (B1.2) could
not be detected.
1.4520.554 – MIC5 E1 Tr1 wrong polarity
Yellow alarm. Initiated by MIC5.
Cause
Trigger 1 (B1.2) has wrong
polarity.
1.4520.555 – MIC5 E1 Tr1 no index mark detected
Yellow alarm. Initiated by MIC5.
Cause
Index mark of trigger 1 (B1.2)
was not detected.
1.4520.556 – MIC5 E1 Tr1 wrong n of trigg events
Yellow alarm. Initiated by MIC5.
Cause
The number of trigger 1 (B1.2)
events is not correct.
1.4520.557 – MIC5 E1 Tr1 signal missing
Yellow alarm. Initiated by MIC5.
Cause
An expected signal from trigger
1 (B1.2) was missing
1.4520.558 – MIC5 E1 Tr1 signal faulty
Yellow alarm. Initiated by MIC5.
Cause
An unexpected signal from
trigger 1 (B1.2) was detected.
1.4520.559 – MIC5 E1 Tr1 index mark not detected
Yellow alarm. Initiated by MIC5.
Cause
The index mark of trigger 1
(B1.2) was not detected during
operation.
Corrective action
u Check sensor, sensor clearance, cabling, settings in data record
and timing wheel. Replace sensor if required.
Corrective action
u Check sensor, sensor clearance, cabling, settings in data record
and timing wheel. Replace sensor if required.
Corrective action
u Check sensor, sensor clearance, cabling, settings in data record
and timing wheel. Replace sensor if required.
Corrective action
u Check sensor, sensor clearance, cabling, settings in data record
and timing wheel. Replace sensor if required.
Corrective action
u Check sensor, sensor clearance, cabling, settings in data record
and timing wheel. Replace sensor if required.
Corrective action
u Check sensor, sensor clearance, cabling, settings in data record
and timing wheel. Replace sensor if required.
Corrective action
u Check sensor, sensor clearance, cabling, settings in data record
and timing wheel. Replace sensor if required.
MS15027/02E 2015-04 | Troubleshooting | 81