089 – SS Engine Speed too Low
Red alarm. Engine stop.
Associated parameter 2.2500.030
Cause
Corrective action
Engine stalls. In normal
operation the engine speed is
below the limit set in parameter
2.2500.027 (Engine stall speed
limit) and no engine stop is
applied. The engine is shutdown
for safety reasons.
1. In parallel operation connected to mains:
• Check mains for frequency drop.
• Check generator and coupling for damage.
2. In isolated operation:
• Check throttle position.
• Check throttles for implausible closing. If throttles are fully
open: Check if load step values are admissible.
• Check bypass position.
• Check air filter for contamination, replace if contamination is
visible (→ Page 171).
• Check exhaust back pressure.
• Check differential pressure over mixture cooler.
• Check emissions and injection timing (→ Page 160).
• Check oil separator efficiency (oil in compressor intake
elbow), clean compressor if necessary.
• Check valve clearance (→ Page 165).
• Check gasket between mixture line and cylinder head for
correct installation position.
090 – SS Starter Speed Not Reached
Red alarm. Start terminated.
Associated parameter 2.1090.925
Cause
Corrective action
Idling speed was not attained.
1. Check ignition.
2. Check gas supply.
3. Check mixture setting.
091 – SS Release Speed Not Reached
Yellow alarm
Associated parameter 2.1090.924
Cause
Corrective action
Gas temperature sensor
defective, short circuit or wire
break.
1. Not available in all engine versions (optional).
2. Check sensor and cabling (B38), replace as necessary.
092 – SS Starter Speed Not Reached
Red alarm. Start terminated.
Associated parameter 2.1090.923
Cause
Corrective action
Minimum speed for flushing
process and ignition release was
not attained.
u
Check starter system.
MS15027/00E 2013-10
| Troubleshooting | 115
TIM-ID: 0000044567 - 001
