Hypertherm MAX200 Service Manual - Manual (Page 49)

3-8 MAX200 Service Manual
1-97
MAINTENANCE
Push ON button
(PB1)
110V relay (CR2)
on PCB6 closes.
Power light on, fan on.
D5 (-12VDC) on
PCB9 illuminate.
24VAC relay (CR1), 240VAC
relay (CR3) on PCB6 stay open,
status indicators remain
illuminated. Correct interlock
problem.
Torch retracts to
Upper Limit Switch (ULS),
D2 and D3 on PCB9
illuminate.
24VAC and 120VAC relay (CR1) closes;
D5&D33 (+12VDC) on PCB7 illuminate;
240VAC relay (CR3) closes;
coolant pump motor (M1) on,
and V7 valve activates (opens).
All status indicators extinguish.
All interlocks
satisfied?
IHS installed
and ON?
THC installed?
To
page 3-9
No
Yes
Yes
Yes
No
No