1
Installation
& Set Up
Section 2
Control Transformer
Similar to the main transformer, the control transformer also has configurable jumper links. These are located
directly on the control transformer on the side nearest the front of the unit. The control transformer is located at the top
of the auxiliary module (see diagram on preceding page) which also houses the contactor and the main transformer jumper
block. There are two wires connected to the control transformer terminals 1 and 4. These wires must remain attached
after configuring the control transformer jumper links.
230 Volt Configuration 60Hz
460 Volt Configuration 60Hz
For the 460V configuration, the extra jumper link may be secured to the #10-24 stud located on the base pan in front of the
12 position barrier strip. Terminals 5-8 are not used in either configuration.
220 Volt Configuration 50Hz
380 Volt Configuration 50Hz
Connecting Incoming Power
To connect incoming electrical power it is necessary to remove the right side cover.
Remove the screws retaining the right side panel (Use a 3/8” nut runner, socket
or a large flat blade screw driver). Strip back the outer cable jacketing so there is
approximately 6” (150mm) of insulated leads. Shorten 2” (50mm) off of each of the
L1, L2 and L3 leads. DO NOT SHORTEN the ground lead. Strip approximately ½”
(12mm) of insulation on each conductor. Crimp a lug with a ¼” hole onto the green (green with yellow stripe) conductor.
Thread the 4 leads through the cord grip on the lower left hand side of the back of the welder. Connect the ground lead
to the identified lug first. Use the provided 1/4” nuts to secure this lead. Connect the red, white and black wires to L1,
L2 and L3 on the contactor. Use a large flat bladed screwdriver to secure the incoming leads to the contactor. These
connections should be tight. Tighten cord grip onto incoming cable jacket.
Connect the ground lead to the long bolt on the floor pan as shown in the diagram on the right. There is already a green
with yellow stripe wire attached to this bolt. Trap this lug between the two nuts and tighten the nuts.
WARNING
4
3
2
1
4
3
2
1
4
3
2
1
4
3
2
1
