Weld Schedules
MedWeld 4000 Operator’s Guide
Modified: 9/17/08
4 - 7
M-032116 Programs #T03300, #T02300 and #T02400
For example, the following two functions will have the action shown in
the diagram below:
60
IMPULSE= nn HEAT CY, nn COOL CY
(nn=1-99)
This function defines the length of a weld impulse. It tells the weld
processor that the next function in the schedule should pulsation
weld (providing heat cycles followed by cool cycles, rather than
just heat cycles).
When this function appears before any weld function, the control
displays IMP (impulse) rather than CY (cycles) to indicate the weld
control will pulsation weld.
Pulsation welding provides a specified number of impulses. (An
impulse is a number of heat cycles—when weld current flows—
followed by a number of cycles when current does not flow.)
Consider the following schedule:
60
IMPULSE = 10 HEAT CY, 10 COOL CY
20
WELD 04 IMP 65%I
In this example, the weld processor will actually fire for 10 cycles
at 65% heat, then wait for 10 cycles with NO heat,
and repeat this
pattern 4 times
.
This function only affects the next function in a weld schedule. It
should appear before every weld or slope function you want to
pulsation weld in the schedule.
99%
20%
%I
3cy
8cy
8cy
3cy
3cy
40%
45%
50%
IMPULSE=03 HEAT CY, 08 COOL CY
SLOPE 03 IMP 40%I TO 50%I
Time (Cycles)
99%
20%
%I
10cy
10cy
10cy
10cy
10cy
10cy
10cy
65%
IMPULSE=10 HEAT CY, 10 COOL CY
WELD 04 IMP 65%I
Time (Cycles)
Содержание MedWeld 4000
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Страница 153: ...Weld Schedules 4 54 Modified 9 17 08 MedWeld 4000 Operator s Guide M 032116 Programs T03300 T02300 and T02400 ...
Страница 255: ...Hardware Troubleshooting 9 10 Modified 9 17 08 MedWeld 4000 Operator s Guide M 032116 Programs T03300 T02300 and T02400 ...
Страница 257: ...Application Note Current Compensation 2 ML 010041 Application Note Current Compensation ...
Страница 261: ...Application Note Cascade Welding 4 ML 010041 Application Note Cascade Firing ...