Miller Electric XR W, XR A Spot Controls Optional, Remote Voltage Control Optional, Power Switch

5-7. Spot Controls (Optional)

3

2

4

1

1 Spot/ContinuousSwitch

Use switch to select either an un- timed continuous weld cycle or a timed spot weld cycle. Both weld cycles consist of the following steps: run-in, weld (untimed or spot time), and burnback.

2 Time Range Switch

Use switch to select spot weld time range.

3 Spot Time Control

Use control to set spot weld time. Welding wire feeds at speed se- lected on the gun Wire Speed Con- trol. Spot time starts at arc initiation.

The scale around the control is marked in seconds.

4 Burnback Time Control

Use control to adjust time (up to 0.25 seconds) that the welding wire is electrically energized after the wire stops feeding.

If welding wire sticks in the weld puddle, increase burnback time. If wire burns back into the gun contact tip, decrease burnback time.

The scale around the control is marked in fractions of a second.

5-8. Remote Voltage Control (Optional)

	1 Voltage Control
	Use control to adjust arc voltage at
1	the wire feeder.
	The scale around the control is
	marked in percent.

5-9. Power Switch

	1 Power Switch
1	Use switch to turn unit On and Off.

OM-1581 Page 26