Firepower FP-80, Operating Manual

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Manual 0-2803 17 INSTALLATION PROCEDURES
NOTE
A properly installed ground rod will have a resis-
tance of one ohm or less.
2. Connect the control device (CNC) to a separate earth
ground similar to the ground rod described above.
The ground cable should be at least 12 gauge (4 mm
2 )
wire.
3. To minimize RF interference, position torch leads as
far as possible (at least 1 ft or 0.3 m) from any CNC
components, drive motors, control cables, or primary
power lines.
4. Keep torch leads clean. Dirt and metal particles bleed
off energy, which causes difficult starting and in-
creased chance of RF interference.
5. Make sure work cable and ground cables are properly
connected. The work cable must have a solid connec-
tion to the workpiece or cutting table. The connec-
tion must be free from dirt, grease, oil and paint.
Make a solid work cable
connection to the work-
piece or cutting table
Work Cable
And Clamp
A-02227
Figure 3-12 Power Supply Work Cable Connection