Cause
Checkup
Trouble with card
SFJ-CA1
Replace the card SFJ-CA1 card
with a new one to check.
(open circuit).
for
and
SFJ
for
and
SFJ
Remedy
-
-
Replace the card
Trouble with power
the power unit IM-PW
Replace the power
unit IX-PW
a new one to check.
IM-PW.
Trouble with
control unit will be
Replace the
con-
trol unit
if the same alarm oc-
unit.
curs again even after the
remedy described above.
OVER CURRENT
Overcurrent
Cause
Checkup
Remedy
Motor constant
meter set improperly
Parameter
setting
does not meet motor in use.
Set parameter
MSL
i
pro-
Overload
(read on load meter) is
'Reduce the load.
than 120% of rated
load.
Motor wiring
Motor wiring is incorrect.
Correct motor
per
0 Loose terminal screw
o U, V or W lead grounded
wiring.
o Short-circuit of motor leads
V or W).
Motor coil layer-
Measure insulation resistance.! Replace the motor
short,
or grounding
Insulation resistance should
be less than
