Pinouts for the discrete interface cables

Use these tables to identify the signals, pin numbers, and wire colors in interface cables with discrete connectors.

Table 1. Pinout for J14 on the discrete cable
To the plasma power supply
J14 pin	Input/output	Signal	Function	Wire color
1	Input ¹ ²	Remote on/off +	When the input is open, the power to the plasma power supply, the consoles, and the contactors is disabled.	Red
2	Input ¹ ²	Remote on/off -		Black
3	Input ³	Plasma start +	The Computer Numerical Control (CNC) starts preflow. If the hold input is not active, the CNC continues with the plasma arc. The plasma power supply stays in preflow for up to 30 seconds while the hold input stays active.	White
4	Input ³	Plasma start -		Black
5	Output ^³	Motion +	Tells the CNC that an arc transfer has occurred and to begin machine motion after the CNC pierce delay time.	Green
6	Output ^³	Motion -		Black
7	Input ^¹, ⁴	Hold +	The CNC delays plasma arc start. This signal is usually used in combination with the Start signals to synchronize multiple torches. Start this signal at the same time as the Plasma Start signal. Stop this signal to fire the torch.	Blue
8	Input ^¹, ⁴	Hold -		Black
9	Input ^¹	Shield pierceflow +	The CNC tells the plasma system to continue the shield preflow until after the pierce-delay time. Start this signal at the same time as the Plasma Start signal. Stop this signal when the pierce time is complete.	Yellow
10	Input ^¹	Shield pierceflow -		Black
11	Output ⁵	F+24V CNC	Available 24 VDC (200 mA maximum)	Brown
12		F PWRGND	Ground	Black
12		Shield	Overall shielding of the wires. The shield wire is connected to the CNC chassis ground.	Bare wire
¹ Inputs are optically isolated. It is necessary to supply them with 24 VDC at 12.5 mA or dry-contact closure at 8 mA. ² If J27 of the main control Printed Circuit Board (PCB) has a jumper between pin 2 and pin 3, refer to Pinouts for the discrete cable for the expansion PCB, Install a redundant remote on-off switch, and Examples of output circuits. ³ Outputs are optically isolated, open-collector transistors. The maximum rating is 24 VDC at 10 mA. ⁴ Although the plasma power supply has output capability, it is usually used only as an input. ⁵ CNC +24 VDC provides 24 VDC at 200 mA maximum. A jumper is necessary on J17 to use 24 V power.

Table 2. Pinout for J19 on the discrete cable
To the plasma power supply
J19 pin	Input/output	Signal	Function	Wire color
1	Output ¹	Error +	Tells the CNC that an alert, error, or failure has occurred. This signal is not intended to be used to stop table motion.	Orange
2		Error -		Black
3		Ready for start +	Tells the CNC that the plasma power supply is ready for the plasma start.	White
4		Ready for start -		Red
7	Output ²	Shield ohmic contact +	Refer to the footnotes for additional information.	Blue
8		Shield ohmic contact -	Refer to the footnotes for additional information.	Red
8		Shield	Overall shielding of the wires. The shield wire is connected to the CNC chassis ground.	Bare wire
¹ Outputs are optically isolated, open-collector transistors. The maximum rating is 24 VDC at 10 mA. ² Shield ohmic contact is used as an input into an ohmic contact circuit (with either the XPR® internal circuit or a customer-supplied circuit) to sense when the torch shield has touched the workpiece. Refer to Use ohmic contact sense.