Thermal Dynamics CE CutMaster 50, Инструкция по эксплуатации

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Manual 0-2470 23 INSTALLATION
3.07 WORK CABLE AND GROUND CONNECTIONS
High frequency pilot arc initiation generates electromagnetic
interference (EMI), commonly called RF noise. EMI may interfere
with nearby electronic equipment such as CNC controllers, etc.
Torch leads are shielded to help prevent this problem. To further
minimize RF interference, follow these grounding procedures
when installing mechanized systems:
1. Install a ground wire (not included) between the internal
ground stud in the power supply and a solid earth ground (or
star ground). To create a solid earth ground, drive a 1/2 in
(12 mm) copper rod approximately 6-8 ft (1.8-2.4 m) into the
earth so that the rod contacts moist soil over most of its
length. The depth required will vary depending on location.
Locate the rod as close as possible to the power supply. The
work table should be connected to the same earth ground.
2. Connect the control device (CNC) to a separate earth ground.
The ground cable should be at least 12 gauge 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,
control cables, or primary power lines.
4. Keep torch leads clean. Dirt and metal particles bleed off
energy, which causes difficult starting and increased chance
of RF interference.
Refer to Figure 3-G and:
5. Make sure the work cable is properly connected to the
workpiece before operating the system.
Electromagnetic
Interference (EMI)
Creating an Earth
Ground
Work Cable Connection
Figure 3-G Work Cable Connection
TORCH
ON
OFF
AC
TEMP
PIP
GAS
GAS PRESSURE
RUN
SET
WO
Make a solid work cable
connection to the work-
piece or cutting table
A-00757