Adtech iMASTER – A1 Series - PF (Input Power Loss)

A1-User’s Manual
１８７
9.2.9 PF (Input Power Loss)
1) Diagnostic flow chart
PF
R,S,T Wiring is loose
or loosed?
Tighten the screw
or connect it again
Input regulation
voltage is bigger than
3%?
Install a AC
reactor between
power supply and
VFD
No
No
Yes
Yes
Input diode is ok?
No
Yes
Replace diode
modules or Power
PCB
Increase the value
31.16
by 5 until 30
PF is occurred?
END
No
Yes