7、Some Advice
1. When Torch Retaining Cap IHS adopted, we suggest customers use Anti-Collision Fixture (Figure 7-1) to fix cutting torch and lifter and connected it with Torch Retaining Cap. In practice, when the contact between Retaining Cap and workpiece is weak (especially the workpiece is Rusty or Dirty steel plate,) Proximity Switch IHS takes effect; it is more effective to protect cutting torch. If Torch Retaining Cap IHS and Proximity Switch IHS both installed, both will be active during cutting.
2. On Torch retaining cap IHS, XPTHC-IHS controller must be on well GND.
3. When it is using proximity switch function, we suggest try some more proximity switches, and all switched by external circuit, install as Figure 5-2.
4. When the CNC can not receive the Arc Start Enable signal, it should use Time-Delay to run the CNC. In other word, after CNC sent Arc Start signal, delay the CNC Running.
5. THC cable connected with motor must be shield cable, and should be away from torch cutting cable, to avoid lead in plasma high voltage into THC control circuit.