Siemens SINVERT 350 Manuel D’Utilisation
Alarm and fault messages
4.2 Alarm and fault messages
33
Table 4-9 Fault 36
(Alarm) AC contactor defective (no checkback), or Fast Stop button pressed
Condition
There is no signal at input 11/12 of the CU (green
connector); transferred via Profibus to the S7; drive has
received an ON command.
connector); transferred via Profibus to the S7; drive has
received an ON command.
No power supply for Fast OFF
o
Fast Stop button has been pressed
o
Wire break in the Fast OFF circuit
o
Defect in power supply for Fast OFF
o
Fire alarm system has been activated (if
installed)
Causes
No checkback signal from the AC contactor
o
Defect in AC contactor control circuit (power
pack)
o
Defect in AC contactor coil
o
Defect in auxiliary contacts of AC contactor
o
Wire
break
Unlock the Fast Stop button.
Replace the AC contactor
Unlatch the contacts of the AC contactor
Replace the AC contactor
Unlatch the contacts of the AC contactor
Measures
Repair the cabling
Table 4-10 Fault 37
(Alarm) Several restart attempts in succession
Condition
The S7 has tried several times without success to
restart the drive
restart the drive
Fault in the drive
Causes
Operational fault (might be rectified automatically)
Measures
Repair the drive