Hypertherm HT4001 Plasma Arc Cutting System - Manual (Page 226)

APPENDIX A
15
a-4
HT4001
Instruction Manual
Connecting the Slave Cable to the Current Setpoint PCB
1. Route the forked terminal end of the 123377 cable through the side or back of the H401 slave power supply and
lay out approximately as shown in Fig. a-1.
2. Connect the fork terminals to the terminal strip (TB1) on the Current Setpoint PCB: from left to right, connect
terminals 1, 2, 3, 4, 5, 6. See Fig. a-2.
Connecting the Slave Cable to the H401 Terminal Strip
1. Connect wires 57 and 58 from the 123377 harness to H401 terminal strip points 1 and 2 as shown in Fig. a-3a.
Removing H401 Current-Adjust Circuit
You must disable the current-adjust circuit in the H401 supply so that it can be used as a slave with the HT4001.
1. Remove jumper between H401 terminals 8 and 9 and install jumper across terminals 7 and 8. See Figure a-3a.
Connecting the Current Setpoint PCB harness from REC1 to the H401 Terminal Strips
1. Connect wire harness 129375 from REC1 of the Current Setpoint PCB (Fig. a-2) to H401 terminal locations as
shown in Fig. a-3a.
Removing H401 Surge-Injection Circuit
You must disable the surge-injection circuit in the H401 supply so that it can be used as a slave with the HT4001.
1. Remove wires 114 and 111 from the power supply circuit. Wires are located either on the floor of the power
supply or on the rear center wall of the power supply between the surge injection circuit. Use page 10 of 14 of
the wiriing diagrams in section 8 for reference.