Vacon NX - Page 88

Fault codes and software
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89
4
F7
Satu-
ration
Fault
S1 1=Power
2=Power
1
3=Power
2
1=Unit
3=U
phase
4=V
phase
5=W
phase
Signal: ASIC-
DTR. If a caused
defect, the fault
might be on the
power board, in
the power mod-
ule, in the IGBT
or in the internal
cables. Some-
times short cir-
cuit fault
appears simulta-
neously with F7.
- If there is a brake
chopper in use, check
the isolation resistance
and resistance on the
brake resistor.
- FR4-FR8: measure the
power module directly
from its terminals.
Check the capasitors.
TABLE 16. System software fault codes
Code Sub
code
Module Sub
module
Explanation Fault mode