Initial Operation - Migatronic PI 350 DC Manual De Instrucciones

Mains connection
Before connecting the power source to the mains
supply, ensure that the power source is of the same
voltage as the mains voltage provided and that the
fuse in the mains supply is of the correct size. The
mains cable (1) of the power source must be
connected to the correct three-phase alternating
current (AC) supply of 50 Hz or 60 Hz and with
earth connection. The sequence of the phases is
not of significance. The power source is switched on
with the mains switch (2).
Lifting instructions
The lifting point must be used as shown in the
following drawing. The machine must not be lifted
with a mounted gas bottle!
Configuration
MIGATRONIC disclaims all responsibility for
damaged cables and other damages related to
welding with undersized welding torches and
welding cables measured by welding specifications
e.g. in relation to permissible load.
Generator use
This welding machine can be used at all mains
supplies providing sine-shaped current and voltage
and not exceeding the approved voltage tolerances
stated in the technical data. Motorised generators
observing the above can be used as mains supply.
Consult your supplier of generator prior to
connecting your welding machine. MIGATRONIC
recommends use of a generator with electronic
regulator and supply of minimum 1.5 x the
maximum kVA consumption of the welding
machine. The guarantee does not cover damage
caused by incorrect or poor mains supply.
Important!
In order to avoid damage to plugs
and cables, good electric contact
is required when connecting the
work return cable and welding
torch to the machine.
Dispose of the product according to local
standards and regulations.
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INITIAL OPERATION

PI 500
PI 350
Gas connection
Connect the gas hose (3) to the gas system by means of a gas
pressure reducer with flow control. Fit and secure the gas hose
to the gas connection (4) on the front of the machine.
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 (5) and the
return current cable in the plus (+) socket (6).
The control signals from the TIG torch are transmitted to the
machine through the circular 7-pin plug (7). 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.
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