Alarm and fault messages
4.2 Alarm and fault messages
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4.2 Alarm and fault messages
The table below provides an overview of alarm and fault messages supplied on the inverter.
Table 4-1 Alarm and fault messages
No. Meaning Category Main cause
0 Manual Off Fault
1
Inverter power unit is signaling
overtemperature, stage 1
Alarm
Ambient temperature too high, fan defect,
interruption in auxiliary supply to fans
4
Inverter overload; i
2
-t protection
(alarm), stage 1
Alarm Parameter setting error
6 Overload Alarm Parameter setting error
12 Inverter is in commissioning mode Alarm Parameter setting error
14
Fans have exceeded useful life,
replacement required
Alarm Replace fans
33
Inverter power unit is signaling
overtemperature, stage 2
Fault
Ambient temperature too high, fan defect,
interruption in auxiliary supply to fans
36
Fast Stop (1) activated, AC contactor
defective (no checkback signal from
contactor)
Fault
Fast Stop button pressed or AC contactor
defective
37
Several start attempts in quick
succession
Fault
DC link voltage too low, current too high, inverter
in test mode, no Vdc setpoint
39 Overvoltage in the DC link (VDC
gg
) Fault PV field is incorrectly connected
40
Fast Stop (2), Fast Stop via customer
terminal block
Fault Fast Stop button pressed
43 V
CE
protection activated Fault Defective component in the power unit
47
Inverter overload; i
2
-t protection
(fault), stage 2
Fault Parameter setting error
48
Regeneration to the DC link or
defective AC contactor
Fault Parameter setting error, AC contactor defective
49 Undervoltage in the DC link Alarm PV field is disconnected from the inverter
62 No checkback signal "Inverter ON" Fault Signal cable is not connected correctly
63
Direct current too high or signal cable
is defective
Fault
Parameter setting error, fault at S7 analog input,
signal cable defective
64 Vdc too high or Vdc/dt too high Fault PV field is incorrectly connected
65
No checkback "AC contactor closed"
or no checkback "DC contactor
closed"
Fault Contactor defective, signal cable defective
66 General inverter fault Fault Defective component in the power unit
91 Fuse tripped Fault
Overvoltage or short circuit has occurred,
hardware may be defective
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