MTU 12V2000Gx6 series Operating Instructions Manual page 104

479 – AL Comb. Alarm Red (Plant)
Yellow alarm; warning
Cause
Combined alarm initiated by plant
(red).
480 – AL Ext. Engine Protection
Yellow alarm; warning
Cause
External engine protection
function active.
514 – Write Error Flash
Yellow alarm; warning
Cause
Value was not accepted into flash.
536 – AL Wiring PWM_CM1
Yellow alarm; warning
Cause
Wire break or short circuit on
channel PWM_CM1.
549 – AL Power Cut-Off detected
Entered in fault memory only.
Cause
The operating voltage of the
Engine Control Unit was switched
of with the engine running. This
may lead to overpressure in the
HP fuel system, which might
cause damage to the engine.
551 – SS Engine Overspeed Camshaft
Red alarm, emergency stop
Cause
Engine overspeed, camshaft.
558 – AL Wiring PWM_CM2
Yellow alarm; warning
Cause
Wire break or short circuit on
channel PWM_CM2.
104 | Troubleshooting | MS15054/03E 2018-07
Corrective action
u Observe any other fault messages.
Corrective action
u Contact Service.
Corrective action
u Contact Service.
Corrective action
u Check wiring to connected device or check connected device
(actuator/sensor), replace as necessary.
Corrective action
u Instruct the operator only to disconnect the power supply when the
engine has stopped.
Corrective action
u Restart engine (→ Page 67).
Corrective action
u Check wiring to connected device or check connected device
(actuator/sensor), replace as necessary.