– 61 –
[Changing over the voltage between 100 V and 200 V]
(2) Method of voltage changeover
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.
The supply voltage can be changed over from the sin-
gle-phase 100 - 120 V to the single-phase 200 - 240 V
or to the 3-phase 200 - 240 V through the following two
steps:
Replacement of the power cords
Changing-round of connector
on the PWR PCB
1) Turn OFF the power with the power switch after
checking that the sewing machine has stopped.
2)
Draw out the power cord from the power receptacle
after checking that the power switch has been turned
OFF. Then wait for 5 minutes or more.
3) Loosen the screws which are used to secure the
rear cover of the control box. Carefully open the
rear cover.
4) Changing procedure of the power voltage
(Caution) If the supply power changing is carried
out in a wrong manner, the control box can
break. Be extremely careful when taking the
supply voltage changing procedure.
A. To
change over the supply voltage from 200 -
240 V to 100 - 120 V
f
Change the power
cord with the JUKI genuine
cord with the part number (M90355800A0).
Change the earth cord with the one with the part
number (M90345800A0).
f
Change over supply voltage changeover connec-
tor
mounted on the PWR PCB with the con-
nector for 100 V.
f
Connect the crimp style terminal of AC input cord
to the power plug as shown in the figure A.
B,C. To change over the supply voltage from 100 -
120 V to 200 - 240 V
f
Change the power cord with the JUKI genuine
cord with the part number
（
M90175800A0).
f
Change over supply voltage changeover connec-
tor
mounted on the PWR PCB with the con-
nector for 200 V.
f
Connect the crimp contact of the AC input cord
to the power plug as illustrated in Fig. B for the
3-phase power supply or as illustrated in Fig. C
for the single-phase one.
5) Be sure to ascertain again that the relevant parts
have been correctly changed before closing the
rear cover.
6) Close the rear cover while pressing it, taking care
not to allow the wiring to be caught between the
rea
r cover and the main body of the control box.
Then, secure the rear cover with the screws.
1
2
Wiring for the 3-phase 200 V
A
B
C
* The illustration below shows the PWR-T PCB.
The type of PCB differs by destination.
(Plug side)
WHITE
BLACK
RED
GREEN/
YELLOW
WHITE
BLACK
GREEN/
YELLOW
(Plug side)
WHITE
BLACK
RED
GREEN/
YELLOW
WHITE
BLACK
RED
GREEN/
YELLOW
(Plug side)
WHITE
BLACK
RED
GREEN/
YELLOW
GREEN/
YELLOW
1
2
3
WHITE
BLACK
1
2
Wiring for the single-phase 100 V
Be sure to connect the wire between 1 and 2.
If it is connected between 1-3 or 2-3, the sewing
machine will be inoperative.
Wiring for the single-phase 200 V
Be sure to connect the wire between 1 and 2.
If it is connected between 1-3 or 2-3, the sewing
machine will be inoperative.
(Caution) Be sure to remove the
connector while holding its
locking section with your
fi
ngers. Be extremely care-
ful not to pull the connector
forcibly.
Locking section
(Box side)
(Box side)
(Box side)
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