7
Interference can be reduced in the following ways:
1. If there is interference in the power supply line, an E.M.C. filter should be
inserted between the mains and the unit.
2. The output cables of the unit should be shortened; these should be kept
close together and stretched along the ground.
3. All the panels of the unit should be correctly closed after carrying out
maintenance.
SAFETY DEVICES
The plasma cutting units are supplied with the following safety devices:
THERMAL PROTECTION DEVICES
These are installed at the points most subject to high temperatures such as the
power transformers and the rectifying units. An amber light on the front panel
lights up when the thermal protection device intervenes.
A PNEUMATIC PROTECTION DEVICE
This prevents damage to the torch caused by having either no air supply or
low air pressure. An amber light on the front panel lights up when the
pneumatic protection device intervenes.
AN ELECTRIC SHOCK PROTECTION DEVICE
This prevents the operator from coming into contact with the live parts of the
torch (such as the electrode, etc.) This consists of a safety device, built into the
body of the torch, which breaks the main power circuit when the end part of
the torch is removed to replace the electrode or the tip.
When the electrical protection device intervenes, the unit is prevented from
operating.
Summary of Contents for 30SI
Page 1: ...OPERATION MAINTENANCE INSTRUCTIONS LS1208 PLASMA CUTTER MODEL NO 30SI PART NO 6016010...
Page 2: ...2...
Page 25: ...25 WIRING DIAGRAM...
Page 26: ...26 DECLARATION OF CONFORMITY...
Page 27: ...27 NOTES...
Page 28: ......
