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Portable Plasma Torch Height Controller Manual (F1620)
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collision detection, circuits use wiring which arc voltage sample, so it can save a high
voltage cable.
Warning ： Torch retaining cap collision detection circuit and the proximity
switch detection circuit can work at the same time, one of them can complete
positioning when they have detect collision signal. In genal, torch retaining cap
IHS signal can be triggered at first and accomplish fixed position. But when
workpiece have rusted oxide or have the protective insulation, torch retaining
IHS is invalid. If torch retaining cap IHS can not complete, THC will use
proximity switch to complete positioning.
If the wiring of torch retaining cap IHS is connected true, torch retaining cap IHS
will work usefully. And user can choose whether use proximity switch on the basis of
parameter. When user set parameter P13 as 1, they should use proximity switch to
detect collision. When user set P13 as 0, they should not use proximity switch to
detect collision.