ESAB PCM-875 - Sequence of Operation; Trigger Lock Unlock Position

SECTION 5 TROUBLESHOOTING
26
TORCH SWITCH
OPEN CLOSE
GAS SOLENOID VALVE
PREFLOW
FLOW SWITCH CLOSE
FAULT OVERLOAD LIGHT
HF CIRCUIT
INVERTER
CUTTING ARC (CURRENT)
5.4SEQUENCE OF OPERATION
A. TRIGGER LOCK UNLOCK position
PUSH RELEASE
ENERGIZE
NOTES:
1. When the torch switch is pushed during postflow period, the postflow and preflow times are canceled, and
the HF is energized immediately.
2. When the amber fault light comes on, cutting operation should be stopped. The postflow time starts from the
moment the torch switch is released.
10 SEC
Postflow
OPEN
2 SEC.