28 Chapter IV Dex PM3000
Full-Digital Control CO
2
/MAG/MIG Multi-FunctionWelding Machine
Function Code Unit Adjusting Range Step Length Default Value
F55 / 0~200 1 0
Schematic diagram of pulse and dual pulse parameter.
As shown in the figure4-14.
OFF
ON
OFF
ON
OFF
Welding Torch
Switch (4 T)
Gas Delivery
No-Load
Voltage
Voltage
Wire Feeding
Speed
(Current)
Inching Wire
Feeding Speed
Preflow
Gas
Slow
Wire
Feeding
Intense-Pulse
Duty Cycle
Weak -Pulse
Duty Cycle
Given Voltage
Intense Pulse Voltage
Correction
Weak Pulse Voltage Correction
Dual-Pulse
Current Intensity
Given Wire
Feeding Speed
(Given Current)
Pulse Current
Peak Amplitude
Soft-
Start
Time
Arcing
Transition
Time of
Wire
Feeding
Speed
Transition
Time of
Wire
Feeding
Speed
Cycle
Welding
Current Time
of Pulse Peak
Arc
Retreating
Pulse
Back-
Burning
Pulse
Chopping
Lagging
Gas
Delivery
Transition
Time of
Wire
Feeding
Speed
Fig.4-14SchematicDiagram of Pulse and dual Pulse
Current Amplitude of PeakPulse（F30）
1. Enter into the internal function, and adjust the welder panel knob to F30.Press the "Fn" key, and the
right nixie tube flashes.
2. Turn the knob on the right panel to adjust the F30 parameters (shownin table 4-16), press the "Fn" key
to confirm, and F30 parameter setting is completed.
Table4- 4Parameter Table ofCurrentAmplitude of Pulse Peak
Function Code Unit Adjusting Range Step Length Default Value
F30 A
200～420A
1A 250A
Current Time of PeakPulse（F31）
1. Enter into the internal function, and adjust the welder panel knob to F31.Press the "Fn" key, and the
right nixie tube flashes.
2. Turn the knob on the right panel to adjust the F31 parameters (shownin table 4-17), press the "Fn" key
to confirm, and F31 parameter setting is completed.
Table4- 17Parameter Table ofCurrent Time of Pulse Peak
F31 1/32ms 16~160 1 35
Pulse Burn-Back Time（F34）
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