ESAB POWERCUT-1250 Troubleshooting Guide download pdf (Page 13)

461

TORCH SWITCH

OPEN CLOSE

GAS SOLENOID VALVE

PREFLOW

FLOW SWITCH CLOSE

FAULT OVERLOAD LIGHT

HF CIRCUIT

PILOT ARC

INVERTER

CUTTING ARC (CURRENT)

5.3 SEQUENCE OF OPERATION

A. TRIGGER LOCK “UNLOCK” position (Applies to PT-21AMX and PT-32EH Torches)

PUSH RELEASE

ENERGIZE

NOTES:

1. When the torch switch is pushed during postow period, the postow and preow times are canceled, and the HF is ener-

gized immediately.

2. When the red fault light comes on, cutting operation should be stopped. The postow time starts from the moment the

torch switch is released.

20 SEC

Postow

OPEN

2 SEC.

SECTION 5 TROUBLESHOOTING

1 2 ... 8 9 10 11 12 13 14 15 16 17 18 ... 21 22

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ESAB POWERCUT-1250 Troubleshooting Guide Page 13