Description Of Functions / Initial Operation; Mains Connection; Important; Initial Operation - Migatronic MIG 305 Série Manuel D'instruction

DESCRIPTION OF FUNCTIONS
The MIG-x machine range consists of the following
machines:
MIG 305x C
MIG 385x C
MIG 445x C
The machines are divided into the following main
modules: power source, wire feed unit, (Compact-
machines), indicator panel and optional water module.
A separate wire feed unit is used for the S machines.
The following types can be used:
MWF 8x, MWF 11x
Power source
The power source consists of a three-phase welding
transformer, two voltage selector switches, a rectifier
and an inductor. The power source has always cooling
with automatic stop. Approx. 4 min after the last
welding the fan stops and starts automatically by a
new welding. The fan will start running when the
internal temperature is above 60
If the power source is equipped with a cooling unit
both this and the fan in the power source will start
running.
Indicator panel
The indicator panel indicates errors and shows
whether the machine is turned on.
Wire feed unit
The wire feed unit has always 4-roll drive system
(18m/min). For many welding operations it is
recommended to use 4-roll drive, especially when
welding with fluxcored wire. Furthermore, it is essential
to use wire feed rolls which correspond to the
dimension of the wire and to use torch liners of the
correct diameter and material in the welding torch.
Water module (Option)
The water module consists of a water tank, a water-
cooling system and a water pump.
MIG 305x S
MIG 385x S
MIG 445x S
MIG 545x S
°
C.

INITIAL OPERATION

Mains connection

The machine must be connected to a three-phase
mains supply and it is important to ensure that the
mains supply voltage is in accordance with the voltage
to which the machine is built. The safety conductor
(earth) is yellow/green.
The machine is equipped with a thermal cut-out
protecting against overload of the machine and ex-
cession of max. current for the mains cable. It is
possible to select the mains fuse so the mains cable is
only protected against short-circuits. The protection
indicated on the type plate of the machine will provide
protection against both overcurrent and short circuits.
Dispose of the product according to local
standards and regulations.
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Configuration
MIGATRONIC disclaims all responsibility for damaged
cables and other damages related to welding with
under sized welding torch and welding cables
measured by welding specifications e.g. in relation to
permissible load.

Important!

In order to avoid destruction of
plugs and cables, good electric
contact is required when
connecting earth cables and
intermediary cables to the
machine.
Warning
Connection to generators can damage the welding
machine.
When connected to a welding machine, generators
can produce large voltage pulses, which can damage
the welding machine. Use only frequency and voltage
stable generators of the asynchronous type.
Defects on the welding machine arisen due to
connection of a generator are not included in the
guarantee.
How to connect the gas
The gas hose, which comes from the intermediary
cable or the rear of the machine, should be connected
to a stabil gas supply.
Assembly of the earth cable
The earth cable (negative pole) is fitted to the induc-
tance outlet wanted (depending on the dimension of
the welding wire). (Pos. 2-3-4-5 for S-model or pos. 4-
5 for C-model).
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