MTU 20V4000L32FB Operating Instructions Manual page 158

572 – L3 Al CAN Max. Retarded Timing
Red alarm. Engine shutdown.
Associated parameter 2.1200.933
Cause
Due to detected knocking, the
cylinder set to maximum retarded
timing has violated the limit value.
581 – AL Wiring PWM_CM3
Red alarm.
Associated parameter 1.1041.923
Cause
Wire break or short circuit on
channel PWM_CM3.
583 – AL Circuit Breaker Closed
Red alarm. Engine shutdown.
Associated parameter 2.0451.115
Cause
Generator load switch does not
open when engine stops. Engine
is motoring.
587 – AL Wiring PWM_CM4
Red alarm.
Associated parameter 1.1041.924
Cause
Wire break or short circuit on
channel PWM_CM4.
596 – AL Develop PR Set
Red alarm.
Associated parameter 1.8004.645
Cause
The ECU parameter record in use
is a test version.
158 | Troubleshooting | MS150116/04E 2018-04
Corrective action
1. Check emissions (→ Page 57).
2. Check ignition timing (→ Page 186).
3. Check combustion chamber.
4. Check gas quality if feasible (methane number).
Corrective action
u Check setting at Engine Control Unit.
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 setting at Engine Control Unit.
Corrective action
u Load series parameter record on ECU.