MTU 12 V 4000 Lx4 Operating Instructions Manual page 107

1.4550.043 – A - CAN Fault (CAN Bus Off, CAN Ad)
Red alarm. Initiated by ProAct A-Bank.
Cause
CAN bus connection faulty.
1.4550.044 – A - CAN Stop Command
Yellow alarm. Initiated by ProAct A-Bank.
Cause
"Stop" command received via
CAN bus
1.4550.131 – B - Internal Fault
Red alarm. Initiated by ProAct B-Bank.
Cause
Hardware not ready for
operation.
1.4550.132 – B - Stop commanded (Run/Stop)
Yellow alarm. Initiated by ProAct B-Bank.
Cause
ProAct setting is not correct.
1.4550.133 – B - Input (Supply) Voltage Fault
Yellow alarm. Initiated by ProAct B-Bank.
Cause
Upper or lower supply voltage
limit reached.
1.4550.134 – B - Position Error
Red alarm. Initiated by ProAct B-Bank.
Cause
Position demand and feedback
do not match
1.4550.135 – B - Temperature Sensor Fault
Red alarm. Initiated by ProAct B-Bank.
Cause
Hardware not ready for
operation.
Corrective action
u Check cabling and setting.
Corrective action
u Check setting.
Corrective action
u Restart ProAct.
Corrective action
u Check setting.
Corrective action
1. Check supply voltage.
2. Check cabling.
Corrective action
1. Check mechanical system.
2. Restart ProAct.
Corrective action
u Restart ProAct.
MS15027/00E 2013-10 | Troubleshooting | 107