7. Troubleshooting
State of Machine
Cause
Chec
k point
1.
The fun does not r
un.
Content of confir
mation
3)
The tr
ansf
or
mer (T01) is def
ectiv
e
.
4)
The th
yr
istor module (SCRM) is def
ectiv
e
.
5)
The control pr
inting wir
ing board is
def
ectiv
e
.
6)
The f
an motor and unit side control bo
x
are def
ectiv
e
.
2) Connected mistak
e
1)
The po
w
er-supply v
oltage is abnor
mal.
The v
alue of po
w
er-supply v
oltage is
confir
med
. (TB IN)
F
an po
w
er supply wir
ing is connected
with f
an controller po
w
er supply taking
out par
t, and confir
m oper
ation.
The b
linking of LED01 is confir
med.
The resistance is confir
med.
(Betw
een the lines of pr
imar
y side
, and
lines of secondar
y side
.)
The content of P15 is chec
k
ed.
(SCRM)
The content of P15 is judgment.
(SCRM)
Whether the v
oltage is input to f
an motor is
confir
med.
Whether the f
an motor oper
ation is
confir
med.
The f
an controller connection is confir
med.
The unit side connection is confir
med.
Is the po
w
er-supply v
oltage 342-457V?
T
roub
leshooting
Replace the tr
ansf
or
mer in case of abnor
mal
resistance
.
When the v
oltage impression and f
an motor does
not w
or
k, f
an motor is def
ectiv
e
.
When the v
oltage is not impressed to the f
an,
the
unit side control bo
x is def
ectiv
e
.
When there is no wrong abo
v
e-mentioned,
it is assumed f
an controller connection state
,
if abnor
mality relapses
, the control pr
inting board
is def
ectiv
e and e
xchange
.
Replace SCRM when abnor
mality is f
ound.
At the time of tur
ning on light.
(alw
a
ys)
The CN01 connector is remo
v
ed, and measures
resistance
.
When the resistance is 1 kilo-ohm or
less
, repair the control pr
inting board due to the
ther
mistor shor
t-circuit breakdo
wn.
In case of ther
mistor is correct, the control
pr
inting board is def
ectiv
e and e
xchange
.
At the time of tur
ning off light.
The CN01 connector is remo
v
ed, and measures
resistance
.
When the resistance is 25 kilo-ohm or
more
, repair the control pr
inting board due to the
ther
mistor open breakdo
wn.
In case of ther
mistor is correct, the control
pr
inting board is def
ectiv
e and e
xchange
.
The wir
ing mistak
e is corrected.
The po
w
er supply wir
ing is confir
med,
and corrected.
TB OUT - f
an motor
Resistance betw
een the lines of pr
imar
y side
(red and white) about 310 ohm.
Resistance betw
een the lines of secondar
y
side (CN02 the connector is remo
v
ed from
the pr
inting wir
ing board.)
Betw
een 1-3 pin about 0.9 ohm
CN02- ther
mistor
NF-SCRM-TB OUT
CNU
, CNV
, CNW
-SCRM
(The connection is noted.)
TB IN-NF wir
ing
TB IN-T01-CN02.
11
After chec
king item 1)-4), when the po
w
er
supply is tur
ned on, the b
linking of LED01 is
confir
med.
Please intercept the power supply without fail, and secure safety when you execute detaching wiring, the connector,
and the measurement machine to the following work.
