Hypertherm XPR300, Instruction Manual

Page: 176 / 402

Connect for Communication
4
176 809480 Instruction Manual XPR300
How to connect to the plasma power supply with discrete

You must use serial RS-422 or the XPR Web Interface with discrete to
operate the cutting system.

To use arc voltage control (AVC) with a discrete cutting system, you must
install an additional PCB inside the plasma power supply. For information
on how to install this board, see the
XPR300 VDC3 Board Installation
Field Service Bulletin (809700).

For an example of a system diagram, see Discrete multi-system interface (Sheet 18 of 22)
on page 398.

For information on signals and protocols, see XPR discrete communication in the
XPR300
CNC Communication Protocol
(809810).
1. Remove the rear panel of the plasma power supply. See How to remove the external panels
from the system components on page 93.
2. Put End A ( Figure 43 ) of the discrete cable through the hole in the bottom of the rear
compartment in the plasma power supply. See Figure 44 on page 179.
3. Connect J14 and J19 to their respective connectors on the control board in the plasma power
supply.
4. Connect the End B ( Figure 43 ) of the cable to the CNC. See Table 24 on page 177 and Table
25 on page 177 for pinouts.
Figure 43 – Discrete cable

For lengths, see Discrete CNC interface cable on page 365 in the Parts
List .
1 12 1 8
J14
J19
End B
To the CNC
End A
To the plasma power supply