Hypertherm THC Control Board Replacement - Manual (Page 11)

Page 8 128407 Kit Instructions
3 Remove access covers from the THC control
module and the THC plasma interface assembly.
4. Install the replacement PC board in to the THC control module and attach electrical connections.
5 Attach the volt meter to measure the arc voltage between J5-2 and J5-3 in the plasma interface
assembly.
THC.91
GND
ELECTR
ODE
WORK
J5
12
345
IM360.01
POWERMAX, MAX100, MAX200,
HD3070, HT2000, HT2000LHF, AND
HT4001 PROCEDURE
1. Turn off the power to the power supply.
2. Turn off power to THC system
and remove power cord.
IM379.01
1
2
Powermax, MAX100, MAX200, HD3070, HT2000,
HT2000LHF, and HT4001 THC Control PCB Calibration
Set volt meter to
measure 100-500 VDC.