642 – SD Electr. Motor Power AI2
Yellow alarm.
Associated parameter 2.8006.040
Cause
Corrective action
Engine power sensor defect
(analog input 2).
1. Generator eff. power not correctly transmitted.
2. Generator eff. power can also be transmitted via CAN bus as an
option.
3. Check configuration of plant control system.
646 – Al Knock Intensity
Red alarm.
Associated parameter 2.1200.934
Cause
Corrective action
Knock intensity exceeded
(extreme knocking detected).
1. Check gas quality if feasible (methane number).
2. Check emissions.
3. Check combustion chamber.
649 – Al Req Angle Throttle A
Red alarm.
Associated parameter 2.1200.935
Cause
Corrective action
Opening angle of throttles A
exceeded.
1. Check charge-air pressure reserve.
2. Intake air temperature outside TVU data.
3. Check compressor for contamination.
4. Reduce power.
650 – Al Req Angle Throttle B
Red alarm.
Associated parameter 2.1200.936
Cause
Corrective action
Opening angle of throttles B
exceeded.
1. Check charge-air pressure reserve.
2. Intake air temperature outside TVU data.
3. Check compressor for contamination.
4. Reduce power.
651 – AL Preheating Error
Yellow alarm.
Associated parameter 1.1480.101
Cause
Corrective action
Engine preheating faulty.
1. Low coolant.
2. Missing differential pressure in coolant system.
3. Coolant pump does not start, is faulty.
122 | Troubleshooting | MS150115/00E 2013-10
TIM-ID: 0000044738 - 001