Hypertherm HT200LHF-200 Volt HySpeed - Manual (Page 92)

Turn line disconnect
switch on
Push and hold
ON button (PB1)
Release ON button (PB1)
System initialization
is complete.
12VDC to the following interlocks:
1. TSW1, TSW2 (Chopper temperature switches)
2. TS1 (Power Supply transformer temperature switch)
3. LS1 (Power Supply coolant level switch)
4. PS3 (Power Supply shield pressure switches)
5. PS1,
,
PS2 (Gas Console plasma pressure switches)
6. TS2 (Power Supply coolant temperature switch)
7. FS1 (Power Supply coolant flow switch – note this interlock
will not be satisfied until M1 coolant pump is activated.)
CR1 (24V/120V relay) on Power Distribution
Board (PCB1) closes.
24VAC to
LT1 (Power Supply ON light)
PCB2 (Power Supply- µ P Control Board
24VAC interlock)
120VAC to
CH1 , CH2 (Power Supply Choppers)
PCB3 (Power Supply Analog Board)
PCB4 (Power Supply Relay Board)
PCB9 (Power Supply THC Board)
CR2 (120V relay) on Power
Distribution Board (PCB1)
closes.
120VAC to
M2 , M3 , M4 (Power Supply
Fans)
M5-M8 (Power Supply Heat
Exchange Fans)
PCB2 (Power Supply- µ P
Control Board)
CR3 (240V relay) on Power
Distribution Board (PCB1)
closes.
240VAC to
M1 (Power Supply Coolant
Pump)
All STATUS LEDs on
PCB5 (Interlock Display
Board) are extinguished.
Correct
Interlock
Problem
Correct
Interlock
Problem
First 5 interlocks
listed above
satisfied
?
All interlocks
listed above
satisfied
?
No
No
Yes Yes
MAINTENANCE
HySpeed HT2000LHF
Instruction Manual
5-3
6
Gas Console
Inspection
Inspect the gas console on a routine basis.
• Check the exterior for any damage. Look for damaged glass tubes in the flowmeters and check the
pressure gauges for damage.
• Inspect all interconnecting cables, hoses and leads for wear and damage. Ensure that all connections are
tight and that there are no leaks. Do not overtighten fittings.
Cleaning
Keep the flowmeters and pressure gauges free of dirt, dust and foreign matter.
Start Sequence
Shaded boxes represent
action taken by the operator.