Hypertherm HD3070 Plasma Arc Cutting System w/ Automatic Gas Console - Manual (Page 131)

5-6 HD3070 with Automatic Gas Console Instruction Manual
16
MAINTENANCE
Push and hold ON
button (PB1)
110V relay (CR2) on Power Distribution
Board (1XPCB2) closes
110 VAC to:
Power Supply Fans (M2, M3),
Power Supply Heat Exchange fans (M4-M7).
24 VAC to:
Remote HF Console door switch (S1),
Power Supply Transformer temp. switch (TS1),
Power Supply Coolant level switch (LS1),
External Interlock
Gas System
Gas Pressure
Power Supply Coolant temp. switch (TS2),
Power Supply Coolant flow switch (FS1).
Release ON
button (PB1)
240V relay (CR3) on Power Distribution
Board (1XPCB2) closes
240 VAC to:
Power Supply Coolant pump (M1).
All STATUS LEDs on Interlock Display Board
(1XPCB6) are illuminated (except
OVERTEMP LED, which remains off).
System purge of lead set gas hoses for 40
seconds (preflow 20 seconds; cut flow 20
seconds.
System initialization is now complete.
24V / 110V relay (CR1) on Power Distribution
Board (1xPCB2) closes:
24 VAC to:
Power Supply ON light (LT1).
110 VAC to:
Power Supply Control Board (1XPCB3),
Power Supply Isolation Board (1XPCB5),
Power Supply Relay Board (1XPCB4),
12-volt DC Power Source
110 VAC Gas System Power