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1.4520.549 – MIC5 E1 Power output limit reached
Red alarm. Initiated by MIC5.
Cause
The power output has exceeded
the admissible value.
1.4520.550 – MIC5 E1 Tr1 synchronisation fault
Yellow alarm. Initiated by MIC5.
Cause
Unable to synchronize with signal
from pulse sensor 1 (B1.2).
1.4520.551 – MIC5 E1 Tr1 operational error
Red alarm. Initiated by MIC5.
Cause
Pulse sensor 1 (B1.2) has tripped
an operational error.
1.4520.552 – MIC5 E1 Tr1 no signal detected
Yellow alarm. Initiated by MIC5.
Cause
No signal from pulse sensor 1
(B1.2).
1.4520.553 – MIC5 E1 Tr1 polarity detection fail
Yellow alarm. Initiated by MIC5.
Cause
Unable to detect polarity of pulse
sensor 1 (B1.2).
1.4520.554 – MIC5 E1 Tr1 wrong polarity
Yellow alarm. Initiated by MIC5.
Cause
Pulse sensor 1 (B1.2) has wrong
polarity.
92 | Troubleshooting | MS150122/02E 2017-09
Corrective action
1. Check ignition system settings in the engine governor.
2. Check ignition coils.
3. Check igniters.
4. Restart ignition control unit.
Corrective action
u Check sensor, sensor gap, cabling, data record settings and timing
wheel. Replace sensor as necessary. (→ Page 204) (→ Page 203)
Corrective action
1. Check sensor, sensor gap, cabling, data record settings and timing
wheel. Replace sensor as necessary. (→ Page 204) (→ Page 203)
2. Restart ignition control unit.
Corrective action
u Check sensor, sensor gap, cabling, data record settings and timing
wheel. Replace sensor as necessary. (→ Page 204) (→ Page 203)
Corrective action
u Check sensor, sensor gap, cabling, data record settings and timing
wheel. Replace sensor as necessary. (→ Page 204) (→ Page 203)
Corrective action
u Check sensor, sensor gap, cabling, data record settings and timing
wheel. Replace sensor as necessary. (→ Page 204) (→ Page 203)
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