17
Connection of welding cables
Connect the welding cables and the return current
cable to the front of the machine.
Please note that the plug must be turned 45 degrees
after insertion into the socket - otherwise the plug can
be damaged due to excessive contact resistance.
Always connect the TIG torch in the minus (-) socket
(6) and the return current cable in the plus (+) socket
(7).
In case of PLASMA welding connect the PLASMA
torch to minus (-) socket (6), PILOT ARC to socket (8)
and the return current cable in the plus (+) socket (7).
Please note that the socket for pilot arc is smaller than
the socket for PLASMA torch to avoid the possibility of
exchanging cables.
The control signals from the TIG torch are transmitted
to the machine through the circular 7-pin plug (9).
When the plug has been assembled please secure it
by turning the "circulator" clockwise. Connect the gas
hose to the quick connection.
COATED ELECTRODES: Electrodes are marked with
a polarity on the packing. Connect the electrode
holder in accordance with this marking to the plus or
minus sockets of the machine.
Gas connections
This generator is equipped with 2 fully independent,
digitally regulated, gas controls:
1) Shield gas control for TIG and PLASMA
2) Plasmagas control for PLASMA welding
The gas hoses (3), which are lead out from the rear
side of the machine should be connected to gas
supply with pressure reduction. The shield gas hose
should be pressed in the shield gas connection (4)
and the plasma gas hose in the plasma gas
connection (5).
Connection of electrode holder for MMA
The electrode holder and return current cable are
connected to plus tap (7) and minus tap (6). Observe
the instructions from the electrode supplier when
selecting polarity.
Connection of TIG and PLASMA torch
Mount the flow hose on the water cooled torch in the
quick connection marked with blue (10) and the return
hose in the quick connection marked with red (11).
Control of cooling liquid
The machine is delivered with integrated water cooling
and the cooling liquid level should be checked
regularly by means of the level control (12). The
refilling of cooling liquid takes place through the filler
neck (13).
Connection of foot control
Foot control is connected to the 7-poled plug (9) or
through the 8-poled plug (14) (depending on the foot
control type).
Please note!
Please note that the plasma process requires
increased cooling capacity to avoid thermal
breakdown of the plasma torch. The internal
cooling capacity is adequate for TIG welding.
An external cooling unit is required to ensure
sufficient cooling capacity of the plasma torch
during plasma welding from approx. 150 Amps.
External compressor cooling must be used
during plasma keyhole welding from approx.
300 Amps.
Please contact Migatronic for more information.
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