Hypertherm HD4070 Rev.8 - Manual (Page 194)

MAINTENANCE
HD4070 Instruction Manual 5-47
3
THC Control Board – status lights during normal power-up .
The following LEDs are located on the control board inside the control box. See figure below for location.
LED Signal Function Status
D9 - cycle start input Off
D10 - auto height on/off Off
D11 - spare input Off
D12 - spare input Off
D13 - IHS sync input Off
D14 - spare input Off
D15 - machine cable On
D17 - transfer input Off
D18 - pilot arc input Off
D19 - nozzle contact Off
D20 - spare input Off
D21 - torch 1 select Off
D22 - torch 2 select Off
D23 - plasma cable On
D25 - machine motion output Off
D26 - THC error out Off,
(On if there is error)
D27 - pilot arc output Off
D28 - retract complete On
D29 - spare out Off
D30 - IHS complete Off
D31 - error #1 (Not functional) On
D32 - plasma start output Off
D33 - hold ignition output Off
D34 - pierce complete out Off
D35 - spare out Off
D36 - spare out Off
D37 - high voltage relay active Off
D38 - error #2 (Not functional) On
LED Signal Function Status
D41 - +24v On
D42 - -12v On
D43 - +12v On
D44 - +5v On
D45 - response switch 1 Off
(user-definable response)
D46 - response switch 2 Off
(user-definable response)
D47 - response switch 3 Off
(user-definable response)
D48 - crash detect (Future use) Off
D49 - home position On momentarily,
then Off
D50 - lower limit switch Off
D51 - motor current check On
D52 - response sw4 Off
D53 - drive ID 1 Off
D54 - drive ID 2 On
D55 - drive ID 4 Off
D56 - spare input Off
D57 - motor drive installed On
D58 - encoder A On or Off
D59 - encoder B On or Off
Cntrl box
THC #1 Control board
THC #2 Control board