Miller Electric A.B.B. Robot Interface Gas Control Hub And Spindle Arc Failure Light Connections

2-10. Arc Failure Light Connections

Robot Control Unit		Robot Interface
Common Terminal		Weld Alarm Terminal
If So Equipped	Signal	If So Equipped
	Relay
	CR	1TL
+24VDC

			Arc Failure
		1TM	Indicator Light
Robot Control Unit
Common Terminal		Weld Alarm Terminal
If So Equipped	Signal	If So Equipped
	Relay
	CR

To Voltage Source

(115VAC, 24VAC, 24VDC)

Isolation Relay CR

Robot Control Unit Robot Interface

1TL

+24VDC

Isolation Relay CR

1TM	Arc Failure
	Indicator Light

Tools Needed:

.Arc Failure light on robot inter- face front panel turns on and off by a signal from robot control unit. Obtain proper length of 18 gauge/2-conductor cord for this connection.

For robot control units when 24 vdc is used:

1Route cord through strain relief on right side panel of robot interface, and make proper connections to 1TL and 1TM.

2Route and connect remaining end of cord to weld alarm terminal and ground connection at the robot control unit.

3Connect +24 vdc to common relay contact terminal.

For robot control units when 115 or

24 vac, or 24 vdc is used:

1Route cord through strain relief on right side panel of robot interface, and make proper connections to 1TL and 1TM.

2Obtain a 115 or 24 vac, or 24 vdc isolation relay CR1, and install into robot control.

3Route and connect remaining end of cord to one side of the normally-open robot control relay contact and ground.

4Connect +24 vdc to remaining side of normally-open robot control relay contact.

5Connect a lead from one side of robot control coil to weld alarm terminal.

6Connect proper voltage source (115 vac, 24 vac, or 24 vdc) between common terminal and remaining side of robot control relay coil.

S-0292

OM-884 Page 14