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1.4520.681 – MIC5 E2 Tr3 index to late / missing
Yellow alarm. Initiated by MIC5.
Cause
Corrective action
Index mark of pulse sensor 3
(B13.2) detected too late or
missing.
u
Check sensor, sensor gap, cabling, data record settings and timing
wheel. Replace sensor as necessary. (→ Page 203) (→ Page 202)
1.4530.007 – Shutdown
Red alarm. Initiated by compressor bypass.
Cause
Corrective action
Hardware not ready for operation.
1. Restart compressor bypass flap.
2. Replace compressor bypass flap.
1.4530.008 – alarm
Yellow alarm. Initiated by compressor bypass.
Cause
Corrective action
Summary alarm (for details, refer
to the source alarm).
u
Rectify cause of alarm.
1.4530.009 – Derating Active
Yellow alarm. Initiated by compressor bypass.
Cause
Corrective action
Internal temperature too high.
Adjustment rate is reduced.
1. Check room temperature and ventilation.
2. Check mechanical system.
3. Restart compressor bypass flap.
1.4530.010 – PWM Input High Duty Cycle Error
Yellow alarm. Initiated by compressor bypass.
Cause
Corrective action
Compressor bypass setting is not
correct.
u
Check compressor bypass flap setting.
1.4530.011 – PWM Input Low Duty Cycle Error
Yellow alarm. Initiated by compressor bypass.
Cause
Corrective action
Compressor bypass setting is not
correct.
u
Check compressor bypass flap setting.
1.4530.012 – Analog Input High Error
Yellow alarm. Initiated by compressor bypass.
Cause
Corrective action
Compressor bypass setting is not
correct.
u
Check compressor bypass flap setting.
MS150104/03E 2017-09
| Troubleshooting | 109
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