MTU 8 V 4000 Lx2 xx Operating Instructions Manual page 119

583 – AL GLS closed
Red alarm. Engine shutdown.
Associated parameter 2.0451.115
Cause
Generator load switch does not
open when engine stops. Engine
is motoring.
609 – AL Wiring PWM_CM7
Red alarm.
Associated parameter 1.1041.927
Cause
Cable break or short circuit on
channel PWM_CM7.
617 – LO Current Heat Value of Fuel
Yellow alarm.
Associated parameter 2.1210.006
Cause
Fuel calorific value has
undershot the first limit value.
618 – LOLO Current Heat Value of Fuel
Yellow alarm.
Associated parameter 2.1210.007
Cause
Fuel calorific value has
undershot the second limit
value.
619 – HI Current Heat Value of Fuel
Yellow alarm.
Associated parameter 2.1210.008
Cause
Fuel calorific value has
exceeded the first limit value.
Corrective action
1. Check generator load switch.
2. Manually disconnect generator switch.
3. Open any existing mains circuit breaker.
4. Where possible, do not operate manual emergency stop.
Corrective action
u Check cabling to NOx sensors and air humidity sensor.
Corrective action
u Check gas quality if feasible.
Corrective action
u Check gas quality if feasible.
Corrective action
u Check gas quality if feasible.
MS150114/01E 2015-03 | Troubleshooting | 119