iPAK2 User Guide
23
Hi-lift-
A pulse on the Retract Input causes the High Lift Air Valve to switch off and close the
electrodes to the mid position. Welding can proceed in this case.
Whilst the High Lift Air Valve is off, a pulse on the Retract Input causes the valve to switch on
and the electrodes go to the fully open position. Welding cannot proceed in this case.
Maintained
When the Retract Input is switched on, the High Lift Air Valve switches on and the
electrodes close to the mid position. Welding can proceed in this case.
When the Retract Input is switched off, the High Lift Air Valve switches off and the
electrodes open fully. Welding cannot proceed in this case.
Retract input
HAV output
Start input
WAV output
Retract input
HAV output
Start input
WAV output
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