Chapter
IV
Dex PM3000 19
Full-Digital Control CO2/MAG/MIG Multi-FunctionWelding Machine
Attention
Parameter for arc starting and ending can be only regulated in “Synergic” mode.
4.5
Arc Dynamics
Arc dynamicsis to adjust hardness of arc.
Harden the arc by adjusting in positive direction and soften arc by negative direction
Arc dynamicsis described as shown in Table 4-2 andFig.4-3.
Table4- 2 Arc DynamicsDescription
Arc Dynamics
Functions
0 (Default value)
Universal use, Default value
0~9 (hard arc)
Deep and easy penetrated. Suitable for full position welding and high speed
welding. The arc stability also could be ensured under extended cable
0~-9 (soft arc)
Shallow and not easy to be fully penetrated. The values are suitable for
welding of thin plate.
Positive direction
Negative direction
0
Fig.4- 3 Schematic diagram of arc characteristics
1.
Touch the “Arc Dynamics”button, LED will be on, then arc dynamicsfunction will be on.
2.
Rotate the knob to adjust the range of arc dynamics -9~0~+9.
4.6
Arc Starting Parameter
The parameters involved such as wire feed speed, current, voltage, etc., when welding is started.
The relationship of wire starting speed is as follows:
Arc starting feeding speed = current given wire feeding speed × () %
1.
Pressing the "Arc Starting Parameter" key, arc-starting parameter indicting light and “%” light turns
on. Then arc-starting parameter can be set up or viewed.
2.
When the "%" indicator is on and the left nixie tube flashes, set up the percentage of wire feeding
speed in arc starting status through panel knob. After setting, press "Execute" key to confirm, as
shown in Fig.4-4.
Fig.4- 4Setting Interface of Percentage for Arc Starting Parameter
3.
The "±" and "second" of arc starting status can be set up or viewed by “Right Rotating Switch”.
When the correspondi ng indicator light is on and the nixie tube flashes, set the corresponding
parameters by rotating the panel knob and press "execute" key to confirm.
Step
Step
