20 Chapter
IV
Dex PM3000
Full-Digital Control CO
2
/MAG/MIG Multi-FunctionWelding Machine
4.
After the parameter for arc starting adjustment is completed, press the key of arc starting parameter
key; when the indicator of parameter of arc starting is off, exit the arcing starting parameter setting.
5.
Arc starting parameter can be set in 2T, 4 T, and special 4 T.
4.7
Arc Ending Parameter
Parameter for arc ending
During arc welding and welding ending, the involved parameters such as wire feeding speed,
current, voltage.
The relation of arc ending wire feeding speed is as follows:
Arc ending Wire Feeding Speed = Given Current Welding Wire Feeding Speed
x
() %
1.
Pressing the "Arc EndingParameter" key, arc-ending parameter indicting light and “%” light turns on.
Then arc-ending 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 ending status through panel knob. After setting, press "Execute" key to confirm, as shown
in Fig.4-5.
Fig.4-5 Setting 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 corresponding indicator light is on and the nixie tube flashes, set the corresponding
parameters by rotating the panel knob and press "execute" key to confirm.
4.
After the parameter for arc starting adjustment is completed, press the key of arc starting parameter
key; when the indicator of parameter of arc starting is off, exit the arcing starting parameter setting.
Arc starting parameter can be set in 2T, 4 T, and special 4 T.
Attention
1.
The given current in the Parameter for arc retreating can only be adjusted proportionally according to the welding given
current and Wire feeding speed and welding current are different characterizations of the same quantity.
2.
The given voltage in Parameter for arc endingcan only be adjusted in unified model according to the given current.
3.
The current of arc retreating and Wire feeding speed can only be viewed while cannot be adjusted.
4.
The arc characteristics of the arc ending section and arc characteristics of welding section are independent, and not
related.
5.
Setting of arc retreating time is decided by the functional logic of 2T, 4 T, special 4T.
6.
Parameter for arc retreating which cannot be adjusted on the panel can be adjusted in the internal menu, see
☞
4.10.
4.8
Welding Control
Spot-welding
Weld the work-piece in the setting spot-welding time Spot-welding function is only controlled by the
setting time of the spot-welding, not controlled by the welding torch switch, as shown in Fig
.
4-6.
Step
