Change Of The Power Specifications; [General Export]; Setting Of The Power Voltage Specifications; Setting Of The Phase Of Power (Remodelling Of The Power Cord) - JUKI MOL-254 Engineer's Manual

[3] Change of the power specifications

The power voltage for MOL-254 can be changed by change-over of the transformer tap inside the control
box so as to avoid stock of the complete machines which are different in the power specifications because
of the different destinations.
In addition, by stocking all the machines with 3-phase specifications, it is possible to correspond to the
single phase specifications by means of simple remodelling of the power cord.
Remodelling points at the time of change of power specifications are described below. Refer to the description
to respond the request.

(1) [General export]

1) Setting of the power voltage specifications

○ Fix the brown wire with a marker printed "SEL" which is to be changed to the power tap to be used from
among transformer taps (8P bar terminal board) inside the control box to the power tap section to be
used.
Indication of the tap is printed on the facing wire on the terminal board.
Example : 240V → 220V
0V
0V
Black
* Note : Never change the blue wire with the marker of 220V since it is for the main shaft motor
power.

2) Setting of the phase of power (Remodelling of the power cord)

* Note : It is not necessary to remodel with 3-phase power.
When changing 3-phase to single phase, it is necessary to cut one wire on the power plug side.
Cut the brown wire at the root of sheath.
Example) 3-phase 240V → 1-phase 220V
3-phase : 240V
Red
White
Black
Green/yellow
Black Blue
220V
SEL
8P bar terminal board (4P+4P)
220V
200V 220V
White Yellow Yellow
Move
Brown Brown
SEL
230V
240V 380V
Brown Red Orange Purple
1-phase : 220V
Red
Black
Cut the white wire
Green/yellow
182
− −
400V