Basic Setup Menu; Connection And Preparation For Mma Welding - Helvi 77611978 Mode D'emploi

4.1
To enter the Basic Setup Menu power the unit on; while the display views the unit logo, press the Setup
Key - 3 -. Use the Right Regulation Knob - 5 - to adjust the modifiable parameters:
MAX LINE CURRENT - L/H
Setting of the maximum current that the unit may absorb by the input power supply according to the branch
circuit capability. In order to utilize the maximum output capability of the unit, a branch circuit capable of 32
amps in required. Note: if L (low) is set, the absorbed current will be automatically reduced. amps in required. Note: if L (low) is set, the absorbed current will be automatically reduced.
The he letter will appear on the unit main screen if selected. letter will appear on the unit main screen if selected.
INITIAL SPEED - reduced/normal
Reduced Initial Speed reduces the speed of the wire at start up to provide a
soft start.
VRD - ON/OFF
Selection of the Voltage Reduction Device ON or OFF. If the device is on, in arc
mode, the unit powers off at the end of welding to automatically restart when
the electrode gets in touch with the workpiece. As default the device is OFF.
D.M. DIGITAL METER - ON/OFF
Set the digital display ON to view the real voltage and current values while welding. As default this is ON.
LCD CONTRAST - 30/63
Setting of the LCD display contrast according to the environment temperarure and brightness.
UNITS
Select the desired unit of lenght between meters or inches.
Press the Mode Key - 1 - to go back to the welding process screen and save set parameters. The Display
views the screen of the last welding process performed by the unit.
RESET
Press and hold Prog key - 4 - to reset all parameters and go back to the parameters set as default.
5.0 CONNECTION AND PREPARATION
• Connect the earth cable to the Negative output terminal on the front of the unit.
• Connect the work cable to the Positive output terminal on the front of the unit.
• Power the unit ON. The display views the screen of the last welding process performed by the unit.
Mode Key -
1
Press the Mode Key till the MMA Welding Screen is viewed
on the display.
Graphic Display -
•
•
•
Right Regulation Knob -
adjusts the welding current amps (A) on a range from 5 to 200 amps.
Note: adjust the welding current according to the diameter of the electrode to be used.
Left Regulation Knob -
adjusts, in the start phase, the welding current increase percentage variable from 0 to 50% of the set current.
Thanks to an initial peak current, this function makes the welding arc easier to start (Hot Start).

BASIC SETUP MENU

FOR MMA WELDING
-
-
2
MMA welding process symbol
Welding Amps
Hot Start percentage
-
5
RANGE
UP TO 40 A
40÷70 A
55÷90 A
90÷135 A
135÷160 A
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7.1
1
7.1
Ø MM
1.6mm
2.0mm
2.5mm
3.1mm
4.0mm
28
Figure 2
5
Figure 3