19
Cover the whole torch cable (from torch holder to output terminal ) of the
cutter with shielding layer, the shielding layer should be metal hose or shielding
net pipe made of aluminum or copper, metal materials which is magnetic
conducted cannot be used, the shielding layer don't need to connect with
ground;
All the control lines which connected with plasma power source should be
shielding wire, the shielding layer should be connected ground well;
The control system of CNC cutting machine should be away from the cutting
table, torch cables and cutting torch head, especially the cutting torch heard.
When striking arc, the high frequency spark arc on the cutting torch head may
produce strong space spreading high frequency disturb signal, which may crash
the control system;
There should be shields on the controller of CNC system, and the shielding
layers should be ground connected well;
All the lines connected with CNC controller and cutting table should be shielding
wire (Such as the control wire of step motor ,limit switch etc.), and the shielding
layers should be ground connected well;
The pile of the ground cable should be connected with ground well.
6.12
Operation
1)
Safety note
Notes:
Operation strictly accordant with the following steps
Notice
Electric shock may hurt
or even kill man.
Cutting may cause fire or explosion
(Splashes may ignite flammable materials
nearby. Those materials should be 10m away
from the working place.
(Shut off the power during
connection
(Do not touch the conducted parts
Fume & dust is harmful.
(Do not breathe in the fume and
dust caused by cutting
(Clean up the oil spot on work
piece.
(Keep fresh air in working place
(Fume extraction equipment
Arc may hurt your eyes and skin.
(Strong arc may hurt your eyes.
(Ultraviolet radiation generated by arc may
hurt skin and eyes. Please wear shielded guard
when cutting.
