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EN
MMA welding
Safety
WARNING!
Danger from incorrect operation.
Possible serious injury and damage to property.
► Do not use the functions described here until you have read and completely under-
stood these Operating Instructions.
► Do not use the functions described here until you have fully read and understood all of
the Operating Instructions for the system components, in particular the safety rules!
WARNING!
An electric shock can be fatal.
If the power source is connected to the mains electricity supply during installation, there is
a high risk of very serious injury and damage.
► Before carrying out any work on the device make sure that the power source mains
switch is in the "O" position
► Before carrying out any work on the device make sure that the power source is un-
plugged from the mains
Preparatory work Switch off cooling units (in the components menu, set the cooling unit control setup
parameter to OFF)
Turn the mains switch to the "O" position
Disconnect the mains plug
Remove the TIG welding torch
IMPORTANT! Observe the instructions on the packaging of the rod electrode when select-
ing the appropriate type of current and for correctly connecting the electrode cable.
Plug in and latch the grounding cable:
in the (+) current socket ... for DC- welding (=/-)
in the (-) current socket ... for DC+ welding (=/+)
Use the other end of the grounding cable to establish a connection to the workpiece
Plug in the electrode cable and turn it clockwise to latch it in place:
in the (-) current socket ... for DC- welding (=/-)
in the (+) current socket ... for DC+ welding (=/+)
Plug in the mains plug
CAUTION!
Risk of injury and damage from electric shock.
As soon as the mains switch is in the "I" position, the rod electrode in the electrode holder
is live.
► Make sure that the rod electrode does not touch any persons or electrically conducting
or earthed parts (e.g. the housing, etc.).
Move the mains switch to the "I" position
The Fronius logo appears on the display.
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