Miller Electric CST 250 VRD - Manual (Page 21)

OM-220 812 Page 17
3-11. Selecting 400 - 440 Volts AC Three Phase Input Voltage
803 079 / 803 078
Y Turn Off welding power
source, and disconnect
input power before
proceeding.
Check input voltage available at
site.
1
Voltage Selection View
Window
The input voltage that the power
source is linked for appears in the
Voltage Selection View Window.
Check voltage selected in unit.
Changing selection is only
necessary if selected value does
not match available input voltage.
To change relinking board position,
remove top cover and left side
panel.
2
Relinking Board
3 Unused Terminal
4 Terminal Screws
Loosen terminal screws.
5
Relinking Board (Connection
For 400 - 440 VAC Input
Power)
Slide relinking board off connected
terminals, move relinking board to
correct input voltage terminals, and
secure relinking board.
Tools Needed:
5/16 in
2
5
4
.
Be sure to tighten all four screws. Three
screws securing relinking board in place.
3
3
1