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420 – AL L1 Aux 1
ZKP-Number: 2.0160.921
Limit value 1
Cause
Corrective action
Input signal of Aux 1 has
exceeded/not attained limit value
1, depending on configuration.
u
Determine cause of limit value violation and rectify fault.
421 – AL L2 Aux 1
ZKP-Number: 2.0160.922
Limit value 2
Cause
Corrective action
Input signal of Aux 1 has
exceeded/not attained limit value
2, depending on configuration.
u
Determine cause of limit value violation and rectify fault.
428 – AL L1 T-Aux 1
ZKP-Number: 2.0130.921
Limit value 1
Cause
Corrective action
Temperature signal of Aux 1 has
exceeded / not attained limit
value 1, depending on
configuration.
u
Determine cause of limit value violation and rectify fault.
434 – AL L2 P-Aux 1
ZKP-Number: 2.0173.931
Limit value 1
Cause
Corrective action
Coolant temperature too high.
u
Check coolant circuit.
440 – AL L1 P-Aux 1
ZKP-Number: 2.0110.921
Limit value 1
Cause
Corrective action
Pressure signal of Aux 1 has
exceeded / not attained limit
value 1, depending on
configuration.
u
Determine cause of limit value violation and rectify fault.
144 | Troubleshooting | MS150109/01E 2015-11
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