JUKI SC-921 Instruction Manual page 11

[In case of using the power switch for LA]

JA 3ø 220V
JA 1ø 120V
When the metallic conduit is used, be sure to change over the power cord section following the steps of
procedure described below.
(Caution) Be sure to carry out this procedure before installing the control box on the machine table.

Black
AC
Red
200V-240V
White
Green / Yellow
(ground wire)
Black
AC
100V-120V
White
Green / Yellow
(ground wire)
A
B
– 9 –
Connect motor output cord  to connector  locat-
ed on the side of the box.
Installing power switch
Connect power supply cord to the power switch.
[JA specifications]
3-phase 220 V : Power supply cords : black,
white, red and green/yellow
(ground wire)
Single phase 120V : Power supply cords : black,
white, and green/yellow (ground
wire)
1) Place the control box with its frame side down on
the machine table as illustrated in the sketch.
2) Loosen screw B in underside cover A to open
the cover.
3) Change over the cord shown in the red-line circle
following the steps of procedure described below.