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Symptom
of malfunction
las
+
FAEREIR
>
a)
o7|
BE
Display
on
a
Cause,
for
cault
Check
points
Suggested
remedy
a
els
digital
Eo
(Message contents)
ma
gop
o
operation
s
.
be
oo]
panel
G
pS]
uojo
rs)
E
gE
(2ERROR
=
8
id |e sé
EZZ))
x
=
SE
cena
(eran
OH
Fin
vA
Temperature
signifi-|
A | Check
that
the
cooling | Replace
the
cooling
cantly
increasing
fan
is
rotating.
fan.
(Fin
overheat)
se
Check
that
the
ambient
temperature
is not
too
high.
}—
t-
+
OVER
C.,
vA
Overcurrent
A | Check
that
the
Check
abnormal
detection
just
detector
current
|
conditions
of current
after
power
ON
circuit
is normal.
detector
and
PC board
detector
circuit,
Under
V.
v
Power
supply
A
Check
that
no
voltage | Review the
power
abnormal
drops.
supply
system.
(Undervoltage)
Check
that
no
poor
Replace
MCB
and Mg.
contact
of MCB
and Mg
is found.
Check
that
power
has
Do not
turn
power
OFF
been
turned
OFF
or
during
jogging
instantaneous
power
operation.
failure
has
occurred
during
jogging.
Check
that
100 msec
or | Re-check
the
power
less
instantaneous
supply
system.
power
failure
has
occurred
more
than
10 times
repeatedly
for
10 minutes,
Inst. P-F
wv
Power
supply
A
Check
that
no
voltage
Review
the
power
abnormal
drop
is found.
supply
system.
|
(instantaneous
power
t
failure)
Check
that
no
poor
Replace
MCB
and
Mg.
contact
of MCB
and
Mg
is
found.
=
4
i
NG- FRS
v
Free-run
stop
A | Check
that
the
opera-
j| Do not
enter
operation
command
abnormal
tion
command
is given
| command,
FRS
during
during
motor
free-run, | free
run.
and
that
no
FRS is
entered.
With
Free-run
Stop
Re-start
operation
applied,
undervoltage
after
reset.
or
instantaneous
power
failure
has
occurred.
With
Free-run
Stop
Re-start
operation
applied,
power
has
after
reset.
been
cut
off.
| With
Free-run
Stop
applied,
do not
turn
With
Free-run
Stop
power
OFF.
applied,
power
has
been
turned
ON or
reset
operation
has
been
performed.
~ 91 -
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