POWERMAX SETUP
3g-2
CommandTHC for X-Y Table
Instruction Manual
11
See Figure 3g-1 and 3g-2.
1. Remove access cover from the power supply.
2. Locate the machine interface board inside the power supply.
3. Install the arc voltage wires:
Fabricate the wires as follows:
• Use 18AWG (0.9 mm
2
), single pair, unshielded wire, rated for 600V or greater.
• Wire length: As required, from the power supply to the plasma interface assembly.
• After installing the wires from the power supply to the plasma interface assembly, install appropriate
size fork or ring terminals on the wire ends.
Connect one of the arc voltage wires to the J1-6 terminal of the machine interface board for the
powermax 800, 900, and 1100. Connect one of the sensing wires to the J15 terminal of the machine
interface board for the powermax 1000, 1250, and 1650. Label the wire positive (+).
Connect the other arc voltage wire to the J1-8 terminal of the machine interface board for the
powermax 800, 900, and 1100. Connect one of the sensing wires to the J16 terminal of the machine
interface board for the powermax 1000, 1250, and 1650. Label the wire negative (–).
At the plasma interface assembly, connect the negative (–) wire to the J5-2 terminal labeled
ELECTRODE. Connect the positive (+) wire to the J5-3 terminal labeled WORK.
Electrode and work lead arc voltage wires
DANGER
ELECTRIC SHOCK CAN KILL
Turn off all electrical power before removing the power supply cover. Press the power
supply OFF (0) pushbutton switch and set the line disconnect switch to OFF. In the
U.S., use a “lock-out and tag-out” procedure until the service or maintenance is
complete. In other countries, follow appropriate local or national safety procedures.
