Miller Electric XR Control manual Pin Plug Information, Installing voltage sensing lead

5-6. 14-Pin Plug Information

			Pin*	Pin Information
			A	24 volts ac with respect to socket G.
			B	Contact closure to A completes 24 volts ac contactor control circuit.
I J	K	A	G	Circuit common for 24 volts AC circuit.
		B
H	N	L C	C	+10 volts dc output to remote control with respect to socket D.
G	M	D	D	Remote control circuit common.
F	E		E	0 to +10 volts dc input command signal from remote control with respect to socket D.
			H	Voltage feedback; 0 to +10 volts dc, 1 volt per 10 arc volts.
			F	Current feedback; 0 to +10 volts dc, 1 volt per 100 amperes.

*The remaining pins are not used.

5-7. (Optional) Voltage Sensing Lead Connections And CC/CV Jumper Plug Settings

				1
			6	5
4				E D C B A
RC5
3	2	1
EXT		INT		3

Installing voltage sensing lead

1Terminal Strip 2T

2Strain Relief

Loosen screws of strain relief.

3 Voltage Sensing Lead

Route ring terminal end of lead

2through strain relief, and connect ring terminal to terminal A of terminal strip 2T. Tighten screws on strain relief.

4 Motor Speed Control Board PC1

5 Jumper Plug

6 Receptacle RC5

Unit is factory set for constant voltage (CV) welding. To set unit for constant current (CC) welding. Volt sensing lead kit must be installed in feeder. Volt sensing lead kit 209867

For constant voltage (CV) welding, place jumper plug in INT. position. Voltage sensing lead clamp does not need to be connected to workpiece.

For constant current (CC) welding, place plug in EXT. position. Connect clamp end of voltage sensing lead to workpiece.

Reinstall right side panel.

Tools Needed:

1/4 in

801 557-B

OM-1594 Page 18