Siemens SINVERT 350 manual Fault Alarm Vce monitor has responded

Alarm and fault messages

4.2 Alarm and fault messages

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).
Causes	Power unit is defective (various components could be
	the source of the problem)
	Transformer is defective
	AC capacitors are incorrectly connected (connection
	does not comply with circuit diagram)
Measures	Repair or replace the power unit
	Replace the transformer
	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.
Causes	Parameter setting error (CU software)
	Drive is defective
Measures	Adjust the parameter setting
	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
Causes	CU defective
	Defective power unit
	Profibus error
Measures	Replace the defective components
	Set up a Profibus connection

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