Pinouts for the discrete cable for the expansion PCB

Use this table to identify the signals, pin numbers, and wire colors in the interface cable with discrete connectors for the expansion Printed Circuit Board (PCB).

Table 1. Pinouts for the discrete cable for the expansion PCB
End A
Pin number Input/output Signal Function Wire color
1 Input ALT 24 VDC + (+24 VDC)1 Externally supplied 24 VDC lets communications for the control PCB and fieldbus continue when three-phase power is OFF. Red
2 Input ALT 24 VDC - (GND)1 Black
3 Input R_RMT_ON-OFF + (24 VDC)2 Both signals are necessary for the plasma power supply to work with the redundant remote on-off feature. White
4 Input R_RMT_ON-OFF - (RTN)2 Black
5 Output Output estimated arc voltage OUT + (0 V – 10 V)3 Estimated arc voltage output (0 VDC - 10 VDC) is available for torch-height controllers to work. Green
6 Output Output estimated arc voltage OUT - (GND)3 Black
1 A 24 VDC from the Computer Numerical Control (CNC) is necessary to use this feature.
2 A 24 VDC (500 mA) and return (GND) from the CNC or controlling device to the expansion PCB are necessary for redundant remote on-off for the expansion PCB and input to the control PCB. Hypertherm® recommends the use of a separate cable between the remote on-off input and main control PCB.
3 Estimated arc voltage analog output (0 V – 10 V ). The default ratio is 30:1. For information about how to use the XPR® web interface to change the voltage ratio, refer to Use the web interface to change the arc voltage output scale.