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1-15. Changing the voltage of 100/200V
WARNING:
To prevent personal injuries caused by electric shock hazards or abrupt start of the sewing
machine, carry out the work after turning O�� 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.
100 V
type
200 V
type
Connect the wiring inside the power switch as shown
below:
Wiring of the single-phase 100V - 120V type machine
AC100 〜 120
AC100 〜 120
�G
Cut both ends of the red wire.
Wiring of the 3-phase 200V - 240V type machine
AC200 〜 240
AC200 〜 240
AC200 〜 240
�G
The power supply can be changed over between the "single-
phase, 100V to 120V" and "3-phase 200V to 240V" by carrying
out the following two steps.
1 Replacement of the power cord
2 Change-round of the changeover connector on the FLT PWB.
1) Turn OFF the power supply with the power switch after con-
firming that the sewing machine has stopped.
2) Draw out the power cord from the power plug socket after
confirming that the power switch is turned OFF. Then wait for
five minutes or more.
3) Remove four screws fixing the rear cover of the control box
and slowly open the rear cover.
[In the case the single-phase, 100V to 120V power supply is
1
used]
Connect the AC power supply to the black and white wires of the
power cord plug and the earth wire to the green/yellow wire.
For the operation with the single-phase power supply, the red wire
does not need to be connected. Consequently, cut both ends of
the wire at the bottom of the cord.
[In the case the 3-phase, 200V to 240V power supply is used]
Connect the AC power supply to the black, white and red wires of
the power cord plug and the earth wire to the green/yellow wire.
Consequently, cut both ends of the wire at the bottom of the
cord.
Plug
Power cord
Black
Write
Green/
Yellow
Plug
Power cord
Black
Write
Red
Green/
Yellow
– 130 –
If you make a mistake in the proce-
dure for changing, you may damage
the control box. Therefore, take extra
care in the change process.
Power switch
Power switch
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