Hypertherm Powermax30 AIR Service Manual - Manual (Page 221)

Powermax30 AIR Service Manual 808850 221
9 – Wiring Diagrams
Timing chart for torch start
Idle
Compressor
pressurizes
(350 ms)
Gas
solenoid opens
(15 ms)
Inverter on
until pilot arc
established
Transfer
(when work lead
current > 0.4 A)
Cutting
(steady state)
Torch
trigger released Idle
Start signal (torch trigger) ON/OFF
(control board Start LED ON/OFF)
Internal compressor ON/OFF
Pilot arc IGBT ON/OFF
Gas solenoid ON/OFF
Inverter output ON/OFF
Control board Transfer LED ON/OFF
(system is cutting)
Postflow
(5–20 seconds)
Postflow
(5–20 seconds)
User-set current Pilot arc current = 15 A
Transfer threshold: 1.6 A