Figure 43 - Connect the serial RS-422 cable to the plasma power supply (continued)
2 Serial RS-422 out to the next plasma power supply (if necessary)
3A Ethernet LAN port: For future applications. Do not use.
3B Expansion PCB connectors: Necessary for redundant remote on-off feature, alternate 24 VDC power input, and
analog estimated arc voltage output.
Pinouts for serial RS-422 interface cables
Use this table to identify the signals, pin numbers, and wire colors in interface cables with serial RS-422
connectors.
Table 24 - Pinout for serial RS-422 interface cable
End A End B
To the plasma power supply To the CNC
Signal Pin number
Wire color
Pin number Signal
Wire type
TxD + 4 Red 7 RxD +
TxD - 2 Black 3 RxD -
Pair
RxD + 7 White 4 TxD +
RxD - 3 Black 2 TxD -
Pair
GND 5 Green 5 GND
– Cut Black Cut –
Pair
Requirements for discrete
This information prepares you to connect the plasma power supply to the CNC with discrete cables.
■
You must use serial RS-422 or the XPR web interface through Wi-Fi with discrete to operate the
cutting system. If you use EtherCAT, remote on-off must be wired discretely by the cutting system
manufacturer.
■
You can use serial RS-422 or the XPR web interface through Wi-Fi with discrete to operate the
cutting system.
■
To use AVC with a serial RS-422 cutting system, connect pin 5 and pin 6 to J4 on the expansion PCB
to get access to the estimated arc voltage. For information about how to configure the arc voltage
output scale through serial or EtherCAT, refer the CNC Communication Protocol for the XPR Cutting
System (809810).
Connect for Communication
4
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811530 Instruction Manual XPR460
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