CEA TREO 1800 Synergic MIG-MAG, Руководство оператора

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15
During the welding the operator can change the following para-
meters:
• WELDING CURRENT ( ).
• HOT START ( ).
• ARC FORCE ( ).
• SPECIAL FUNCTIONS “Fx” - FIRST LEVEL MENU.
6 - HOLD
This function automatically starts itself at the conclusion of every
welding operation welding and it is indicated to the operator by me-
ans of a flashing light of the HOLD FUNCTION LED for a specific
amount of time. Once the welding has been terminated, for about
15 seconds, both the DISPLAYS should show the same values of
the parameters during the welding.
In this phase the displays show:
• PARAMETER DISPLAY screen - A (D1)
D1
WELDING CURRENT
- WELDING CURRENT ( ): the last current value measured.
• PARAMETER DISPLAY screen - V (D2)
D2
ARC FORCE
WELDING VOLTAGE
HOT START
• HOT START ( ): the value previously set.
• WELDING VOLTAGE ( ): the measured value of the last vol-
tage of what is being previously welded.
• ARC FORCE ( ): the value previously set.
To interrupt the HOLD function and go back to the PRESETTING
phase before 15 seconds have passed, simply turn one of the two
ENCODER (E1-E2) knobs.
E1 E2
The HOLD function can be terminated ahead of time even once
again starting the welding.
Once 15 seconds have passed (HOLD FUNCTION) the TX con-
trol panel goes back to the PRESETTING phase.
7 - ACTIVATING THE VRD DEVICE
The Voltage Reduction Device (VRD) is a safety device that redu-
ces voltage. It prevents voltages forming on the output terminals
that may pose a danger to people. The factory settings do NOT set
out an active welding device during electrode welding.
If the operator wishes to weld in MMA using the VRD device (which
must be done with the welding machine switched off), they must:
1) Use a suitable screwdriver to unscrew the 4 screws that fix
the TX control panel to the welding machine.
2) Remove the “VRD” JUMPER on the DIGITAL INTERFACE
PCB (Fig. B).
3) Use a suitable screwdriver to tighten the 4 screws that fix the
TX control panel to the welding machine.
4) Start the welder by pressing the switch, located on the back
panel, at the position I .
After switching on, but with the machine at rest, the TX control pa-
nel will show the VRD LED on in the colour GREEN and this me-
ans that the device is active.
During the welding phase, this LED becomes RED, which however
does not indicate a malfunctioning of the welder but the fact that
the VRD device is in function and, at the conclusion of the welding
operation, the tension will be reduced within a maximum greatest
time of 0.3 seconds .
FIG. B