USER MANUAL
rest of the leads must be isolated from any machine metallic parts.... preferably inside a
plastic nonconductive power track.
3. Chassis of plasma power supply (with high frequency generator should be mounted away
(as far as practically possible) from the PC, and should be grounded directly to the star
ground point.
4. PC should be as far away from the plasma power supply, should get its AC sourced
through an uninterruptible power supply with surge protection. PC chassis should be
grounded directly to the star ground point.
5. If a remote wired pendant is used, it should have a shielded cable, also grounded to the
star ground point.
6. The gantry of the cutting machine should be grounded to the star ground point.
7. The torch carriage and z axis slide should be grounded to the star ground.
8. The computer monitor should be connected to the computer with a shielded cable. The
mouse also needs to be shielded.
Note: each ground wire to the star ground needs to be separate....no "daisy chaining" as
this can create ground loops.
The work ground from the plasma should be bolted directly to the star ground (no welding clamp)
The cutting slat bed should be connected directly to the star ground as well.
The star ground point should be right on the ground rod, or within about 6 feet, any extra cable
length should be shortened, no cables on the machine should have any coiled extra length.
This is the minimum that should be done on any CNC installation with high frequency plasma....
this often, but not always, eliminates electrical noise interference problems!
Voltage Divider Installation - General
!!!! WARNING!!!!
TURN OFF ALL POWER BEFORE WORKING ON
EQUIPMENT
The voltage divider provides a feedback signal which is derived from the actual cutting arc
voltage of the plasma power supply. The Neuron.THC control uses this feedback signal to control
the cutting height of the torch. The voltage divider used in the Neuron.THC a 10:1 signal. This
simply means that a cutting voltage of 100 volts results in a signal of 10 volts provided to the
control. The power supply positive and power supply negative connections on the voltage divider
should be connected to the proper output points of the plasma power supply.
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