MTU 20V4000L32FNER Operating Instructions Manual page 118

1.4540.055 – Factory CAL Error
Red alarm. Initiated by TecJet.
Cause
Hardware not ready for operation.
1.4540.056 – PWM Duty Cycle High Error
Red alarm. Initiated by TecJet.
Cause
TecJet setting is not correct.
1.4550.031 – A - Internal Fault
Red alarm. Initiated by throttle of cylinder bank A.
Cause
Hardware not ready for operation.
1.4550.032 – A - Stop commanded (Run/Stop)
Yellow alarm. Initiated by throttle of cylinder bank A.
Cause
Throttle setting is not correct.
1.4550.033 – A - Input (Supply) Voltage Fault
Yellow alarm. Initiated by throttle of cylinder bank A.
Cause
Supply voltage has reached
maximum or minimum limit value.
1.4550.034 – A - Position Error
Red alarm. Initiated by throttle of cylinder bank A.
Cause
Position specification and
feedback signal do not match .
1.4550.035 – A - Temperature Sensor Fault
Red alarm. Initiated by ProAct of cylinder bank A.
Cause
Internal temperature sensor
faulty.
118 | Troubleshooting | MS150122/02E 2017-09
Corrective action
1. Restart TecJet.
2. Replace TecJet.
Corrective action
u Check TecJet setting.
Corrective action
1. Restart throttle.
2. Replace throttle.
Corrective action
u Check throttle setting.
Corrective action
1. Check supply voltage.
2. Check cabling (→ Page 203).
Corrective action
1. Check mechanical system.
2. Restart throttle.
Corrective action
1. Restart throttle.
2. Replace throttle.