Cause
Checkup
Trouble with card
SFJ-CA1
t
I
Replace the card SFJ-CA1 card
I
with a new one to check.
(open circuit).
30n
for
2.2K
and
3.7K
FR-
SFJ
150
for
5.5K
and
7.5K
FR-
SFJ
?-
I
I
Remedy
--
Replace the card
SFJ-CAl.
Trouble with power
iReplace
the power unit IM-PW
Replace the power
unit IX-PW
iwith
a new one to check.
iunit
IM-PW.
I
Trouble with
con-
iThe
control unit will be
de-
1
Replace the con-
trol unit
--
fective
if the same alarm oc-
'trol
unit.
curs again even after the
I
remedy described above.
(10)
OVER CURRENT
Overcurrent
Cause
Checkup
I
1
Remedy
/
Motor constant
para-
:
meter set improperly
Parameter
;MSLi
(#2)
setting
does not meet motor in use.
Set parameter
I
MSL
i
(#2)
pro-
;
perly.
;
Overload
,Load
(read on load meter) is
'Reduce the load.
llarger
than 120% of rated
load.
t
Motor wiring
impro-
Motor wiring is incorrect.
1
Correct motor
2
I
;
per 0 Loose terminal screw
o U, V or W lead grounded
wiring.
o Short-circuit of motor leads
(U,
V or W).
,
Motor coil layer- Measure insulation resistance.! Replace the motor
:
short, or grounding
Insulation resistance should
be less than
1MR.
-
loo-
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