Pulse wave shaping principles, Workpoint editor, Start control – Lincoln Electric WAVE DESIGNER IM649 User Manual

Page 51: Appendix a a-19

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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.

Appendix A

A-19

PULSE WAVE SHAPING PRINCIPLES

WAVE DESIGNER

WorkPoint Editor

WorkPoint Editor

1

0

2

3

4

5

6

7

8

9

10

11

50

700

80

850

110

1000

150

1200

205

300

400

600

inch / min

meter / min

Go Figure

28750032

6. The “Start”, “Short”, and “End” windows can

be adjusted at this time to optimize the
starting, shorting, and ending routines.

Start Control - Pulse

Start Control

For Wire Feed Speed

Stage 1 : Wire Run In

Stage 2 : Striking Pulse

Stage 3 : Arc Length Control

Stage 4 : Current Control

Start Volt

Start Time

Start Amps

Strike Peak Time

Strike Peak Amps

Open Circuit Volt

48.0

2.0

21.0

88

172

550

150

27850044

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.

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