Lincoln Electric IM649 manual Start Control

Appendix A PULSE WAVE SHAPING PRINCIPLES A-19

6.The “Start”, “Short”, and “End” windows can be adjusted at this time to optimize the starting, shorting, and ending routines.

Our Experiment: We needed to adjust the starting variables. With the feeder’s run-in WFS set at 65 in/min, we set the starting variables to control the starting routine. With the assistance of ArcScope, we found good settings with these values: start volt 21.0, start time 35 milliseconds, and start current 180 amps. The OCV strike peak time and amps were acceptable as set.

Start Control - Pulse

Start Control

For Wire Feed Speed 150

Stage 1 : Wire Run In

Open Circuit Volt 48.0

Stage 2 : Striking Pulse

Strike Peak Time 2.0

Strike Peak Amps 550

Stage 3 : Arc Length Control

Start Volt 21.0

Start Time 88

Stage 4 : Current Control

Start Amps 172

7.Click on the button to display the WorkPoint Editor window. Check only those wire feed speed points that have been developed (only 150 in/min. at this point). The WorkPoint Editor can also be used to change the wire feed speed value of a workpoint. Workpoints can have the same value but must be in numerical order.

Select the button to set the wave shape parameters for all workpoints equal to the wave shape parameters of the 150 in/min. workpoint. Close the WorkPoint Editor window.

			27850044
	WorkPoint Editor
	WorkPoint Editor
0	50	8	700
1	80	9	850
2	110	10	1000
3	150	11	1200
4	205
5	300
6	400
7	600
	inch / min		meter / min
	Go Figure
			28750032

WAVE DESIGNER