Vestil SWA Series, Instruction Manual

Page: 62 / 88

F:\Manual\SM-1517R-110V-100514 14.05.2010. - 59 -
11-10 Pre-stetch motor M3 hasn’t worked:
Condition:
a). LED M3 lights up on PC board KS-050202-KEY.
b). There’s AC110V at terminal R and S terminal on Inverter IVR3.
c). Power supply SP2 has worked normal. (Supply DC24V to proximity switch SPS1)
Check if there’s AC220V at outputs U,V
and U,W and V,W on Inverter IVR3.
YES
Replace Motor M3.
NO
Refer to Inverter IVR3, short between
terminal MI1 and DCM with a wire. Check i f
the display screen on Inverter changes and
motor M3 is working.
YES
Replace PC board KS-050201-MB.
NO
Refer to Inverter IVR3, short between
terminal MI1 and DCM with a wire. Check i f
the display screen on Inverter changes and
motor M3 is working.
NO
Replace Inverter IVR3.