Fronius CMT 4000 Advanced, Operating Instructions Manual

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4
Press the Mode button to select the desired MIG/MAG mode:
2-step mode
4-step mode
Special 4-step mode (aluminium welding start-up)
Spot welding
See the Setup menu for details of how to set the parameters for Special 4-step and
Spot welding modes.
NOTE!
Parameters that have been set on a system component control panel (e.g. wire
feed unit or remote control) might not be able to be changed on the power
source control panel.
5
Press the Parameter selection button to select the welding parameters to be used to
specify the welding power:
Sheet thickness
Welding current
Wire feed speed
6
Use the adjusting dial to set the selected parameter to the desired value. The para-
meter value is displayed in the digital display located above it.
The sheet thickness, welding current, wire feed speed and welding voltage paramet-
ers are directly interlinked. It is only necessary to alter one of the parameters, as the
other parameters are immediately adjusted to match.
All welding parameter set values that have been set using the adjusting dial or but-
tons on the welding torch remain stored until the next time they are changed. This
applies even if the power source is switched off and on again in the meantime.
7
Open the gas cylinder valve
8
Set the shielding gas flow rate:
Press the Purge (Gas test) button
- Turn the adjusting screw on the underside of the pressure regulator until the
pressure gauge shows the required gas flow rate
CAUTION!
Risk of injury and damage from electric shock and from the wire electrode
emerging from the torch.
When pressing the torch trigger:
▶
keep the torch away from your face and body
▶
do not point the welding torch at people
▶
make sure that the wire electrode does not touch any electrically conducting or
earthed (grounded) parts, such as the housing, etc.
9
Press the torch trigger and start welding
Corrections dur-
ing welding In order to obtain the best possible welding results, the following parameters can be cor-
rected in certain circumstances:
108
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