Cnc Interface - Lincoln Electric FineLine 170HD Operator's Manual

FineLine 170HD Plasma System

3.16 CNC Interface

The Gas Controller provides an optional CNC interface (P6) for legacy products and
robotic applications. Refer to Appendix B to interface with an Inova System. The
following I/O is provided:
• Start Input (24Vdc, 20ma)
o Pin 1 (+), Pin 2 (-)
• Transferred Arc Output (24Vdc, 20mA)
o Pin 3 (+), Pin 4 (-)
o Turns on upon transferred arc by default
o Logic can be inverted
• Plate Sense Output (24Vdc, 20mA)
o Pin 5 (+), Pin 6 (-)
o Turns on upon sensing plate by default
o Logic can be inverted
• Arc Voltage Output
o Pin 7 (+), Pin 8 (-)
o Arc voltage is represented as a current output 0 – 20mA.
o Output Voltage ratio is a function of load resistance.
o Max Resistance = 1000 Ohms (20:1 Ratio)
This information is subject to the controls of the Export Administration Regulations [EAR]. This information shall not be provided to
non-U.S. persons or transferred by any means to any location outside the United States contrary to the requirements of the EAR.
400V => 20mA output
 R = 500 Ohms; 400V
load
Ratio = 400V/10V or 40:1
 R = 250 Ohms; 400V
load
Ratio = 400V/5V or 80:1
P6
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BK8053-000111 Rev D
= 20mA x 500 Ohms = 10V
arc
= 20mA x 250 Ohms = 5V
arc
out
out
CNC / Robot