Siemens SINVERT 350 User Manual
Alarm and fault messages
4.2 Alarm and fault messages
35
Table 4-13 Fault 43
(Alarm) Vce monitor has responded
Condition
The CU has detected an inadmissible circuit voltage
(voltage on semiconductor module between emitter and
collector).
Power unit is defective (various components could be
the source of the problem)
Transformer is defective
(voltage on semiconductor module between emitter and
collector).
Power unit is defective (various components could be
the source of the problem)
Transformer is defective
Causes
AC capacitors are incorrectly connected (connection
does not comply with circuit diagram)
Repair or replace the power unit
Replace the transformer
does not comply with circuit diagram)
Repair or replace the power unit
Replace the transformer
Measures
Connect up the AC capacitors correctly
Table 4-14 Fault 48
(Alarm) Regeneration to the DC link
Condition
The CU has detected current flowing to the PV field
(from AC to DC) which is higher than the set permissible
current value.
Parameter setting error (CU software)
(from AC to DC) which is higher than the set permissible
current value.
Parameter setting error (CU software)
Causes
Drive is defective
Adjust the parameter setting
Measures
Repair the drive
Table 4-15 Fault 62
(Alarm) No checkback signal "Inverter ON"
Condition
The S7 is not receiving a checkback signal in response
to the ON command to the drive
to the ON command to the drive
CU defective
Defective power unit
Defective power unit
Causes
Profibus error
Replace the defective components
Replace the defective components
Measures
Set up a Profibus connection