JUKI SC-910N Instruction Manual page 11

[Power voltage changeover procedure (power voltage setting procedure)]
WARNING :
To prevent personal injuries caused by electric shock hazards or abrupt start of the sewing machine,
carry out the work after turning OFF the power switch and a lapse of 5 minutes or more. To prevent
accidents caused by unaccustomed work or electric shock, request the electric expert or engineer of
our dealers when adjusting the electrical components.
It s adaptable to the voltage of sngle phase 100V to 120V/3-phase 200V to 240V by changng the voltage
changeover connector mounted on FLT p.c.b.
(Caution) When the changing procedure is wring, the control box will be broken. So, be very careful.
A
WHITE WHITE
BLACK BLACK
RED RED
GREEN/
YELLOW YELLOW
B
WHITE
WHITE
BLACK
BLACK
RED
RED
GREEN/
YELLOW YELLOW
C
WHITE
WHITE
BLACK
BLACK
RED
RED
GREEN/ GREEN/
YELLOW YELLOW
Changng procedure of the changeover connector
1. Turn OFF the power source wth the power swtch after
2. Draw out the power cord from the power plug socket after
3. Remove the front cover.
4. Remove three screws fixing the rear cover of the control
A. In case of using with 3-phase 200V to 240V¥
•
1
•
B. In case of using with single phase 100V to 120V
•
(Plug side) •
(Caution) Securely perform the insulation treatment to the
GREEN/
C. In case of using with single phase 200V to 240V
•
•
(Plug side)
(Caution) Securely perform the insulation treatment to the
GREEN/
5. Check that the change has been performed without fail be-
6. Be careful that the cord s not pnched between the rear
(Plug side)
[Point when inserting/drawing out the connector]
confirming that the sewing machine has stopped.
confirming that the power switch is turned OFF. Then wait
for five minutes or more.
box and slowly open the rear cover.
Changng the changeover connector
Connect to 200V the 100/200V changeover connector of
FLT p.c.b. 1 .
Connect the crmp style termnal of AC nput cord to the
power plug as shown in the figure.
Changng the changeover connector
Connect to 100V the 100/200V changeover connector of
FLT p.c.b. 1 .
Connect the crmp style termnal of AC nput cord to the
power plug as shown in the figure.
red terminal which is not used with insulation tape or
the like. (When the insulation is insufficient, there is a
danger of electric shock or leakage current.)
Changng the changeover connector
Connect to 200V the 100/200V changeover connector of
FLT p.c.b. 1 .
Connect the crmp style termnal of AC nput cord to the
power plug as shown in the figure.
red terminal which is not used with insulation tape or
the like. (When the insulation is insufficient, there is a
danger of electric shock or leakage current.)
fore closng the rear cover.
cover and the control box man unt. Close the rear cover
whle pressng the lower sde of rear cover, and tghten
three screws.
– 9 –
When t s dffcult to remove the
changeover connector, nsert a
small-szed screwdrver and press n
the drecton of the arrow as shown
in the figure, and the connector can
be removed wth ease.