Hypertherm MAX200 Machine Torch Plasma Arc Cutting System User Manual download pdf (Page 114)

MAX200 Instruction Manual 5-3

MAINTENANCE

Problem: The green POWER ON pushbutton switch PB1 is pressed, but the fans are not operating

and the green POWER ON indicator does not illuminate.

Cause: Main power is not on available to the power supply.

Solution: Turn on power at the main power panel or at the line disconnect switch box.

Cause: The fuse(s) inside the line disconnect switch box are blown.

Solution: Verify the fuse(s) are sized correctly. Replace the fuse(s).

Cause: Fuse F1 or F2 are blown.

Solution: Verify the fuse(s) are sized correctly. Replace the fuse(s).

Cause: Control transformer T1 is defective.

Solution: Replace transformer T1.

Cause: The green POWER ON (1) pushbutton switch PB1, the red POWER OFF (0) pushbutton switch

PB2, or the associated switch wiring is not making good contact or is defective.

Solution: Replace the defective switch or correct or replace the switch wiring as required.

Problem: The green POWER ON pushbutton switch PB1 is pressed, the fans are operating, but the

green POWER ON indicator does not illuminate.

Cause: Pushbutton switch PB1 was not held down long enough.

Solution: Press and hold PB1 for a minimum of five seconds.

Cause: One or more of the STATUS LED(s) remains illuminated indicating a fault condition(s).

Solution: Refer to Section 4, Operation, Front Panel Controls for interlock indicator descriptions and

Status Indicators Before Startup.

Cause: Fuse F1 on the power distribution board PCB6 is blown.

Solution: Replace fuse F1.

Cause: Relay CR1 on the power distribution board PCB6 is defective.

Solution: Replace relay CR1.

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Hypertherm MAX200 Machine Torch Plasma Arc Cutting System User Manual Page 114