MTU 8 V 2000 M51A Operating Instructions Manual page 155

Display text Meaning
RL 211+A004-EMU EMU 1 not recognized on redundant
bus
SS Safety System Safety system has determined fault on
Failure (EMU) Engine Monitoring Unit
SS Power Reduction Safety system has requested power
Active reduction
SS Emergency Stop Safety system has triggered emergen‐
cy stop
SS Emergency Stop Safety system has carried out an ex‐
External ternally triggered emergency stop
SS P-Coolant Safety system detects that coolant
pressure is too low
SS P-Lube Oil (ECU) Safety system detects that engine-oil
pressure is too low
SS P-Lube Oil (EMU) Safety system detects that engine-oil
pressure is too low
SS Safety Channel Safety system fault message
Def. EMU
SS SDAF closed Safety system reports closed emer‐
gency-air shutoff flaps
SS Safety system Safety system has caused emergency
stop stop
SS T-Coolant (ECU) Safety system has determined that the
coolant temperature is too high
SS T-Coolant (EMU) Safety system has determined that the
engine coolant temperature is too high
SS T-Lube Oil Safety system has determined that the
lube oil temperature is too high
Stop Activated (EMU) EMU has triggered automatic stop
command due to limit value violation
Measure
1. Check LOP visually (→ Page 243).
2. Perform LOP test procedures
(→ Page 245).
3. Contact Service.
• Have EMU checked and re‐
placed if required.
Contact Service.
1. Determine cause of automatic
power reduction.
2. Observe further display messages/
alarms.
3. Contact Service.
1. Determine cause of shutdown and
rectify.
2. Observe further display messages/
alarms.
1. Determine cause of shutdown and
rectify.
2. Observe further display messages/
alarms.
Check coolant level and top up if re‐
quired (→ Page 221).
1. Check lube-oil level and top up if
required (→ Page 208).
2. Contact Service.
1. Check lube-oil level and top up if
required (→ Page 208).
2. Contact Service.
Contact Service.
• Have EMU checked and replaced, if
required.
Open emergency-air shutoff flaps.
Determine cause of shutdown and rec‐
tify.
Reduce power.
Reduce power.
Reduce power.
1. Determine cause of shutdown and
rectify.
2. Observe further display messages/
alarms.
MW15550/06E 2012-02 | Troubleshooting | 155