Description Of Functions / Initial Operation; Initial Operation - Migatronic MIG 335 MK II Manuel D'instruction

DESCRIPTION OF FUNCTIONS
The MIG range is comprised of 6 machines of
different welding capacity:
MIG 335 COMPACT
MIG 405 COMPACT
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 STB
machines. The following types can be used for MIG:
MWF 10, MWF 11, MWF 21
Please note that MWF 10 cannot - as to output - be
used to MIG 505/605. At high output MWF 11/21
has to be used.
These wire feed units can be equipped with different
control kits if required (please see the MWF instruc-
tion manual).
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 two automatic speeds. After 4 min after
the last welding the fan stops and starts automati-
cally by a new welding.
If the internal temperature is below 60C the fan will
run slowly. If the temperature rises to over 60C the
fan will automatically run with full speed. The pur-
pose with this control of the temperature is to reduce
the level of noise and internal pollution of the internal
parts of the power source.
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.
For many welding operations it is recommended to
use 4-roll drive, especially when welding with flux-
cored 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 (see the section
concerning Connection to MIG/MAG).
Water module
The water module consists of a water tank, a water-
cooling system, a water pump and a flow control.
The flow control reports watercooling error in case of
insufficient or lacking flow of cooling water. The
water pump stops by a fault in the water system. The
pump is restarted by stopping and starting the
machine.
MIG 335 STB
MIG 405 STB
MIG 505 STB
MIG 605 STB

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 pro-
tection indicated on the type plate of the machine will
provide protection against both overcurrent and
short circuits.
Configuration:
MIGATRONIC disclaims
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.
How to connect the gas
The gas hose, which is connected to 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 STB-model or
pos. 4-5 for COMPACT-model).
Assembly of the welding torch (COMPACT-
model)
The welding torch is fitted to the central adaptor
(pos. 2 page 11), and the connection is fastened by
hand. If the machine has a water module the two
water hoses are fitted to the quick release con-
nectors for water.
Wire feeding (COMPACT-model)
The wire roll combination to the chosen wire dia-
meter can be seen from the figure page 14.
How to connect the separate wire feed unit
(STB-model)
Connect the rear of the separate wire feed unit to the
machine using an extension cable which contains
cables and hoses for welding positive (pos. 1), con-
trol signals (pos. 2), gas (pos. 3) and cooling water
(pos. 4), if a water module is incorporated in the ma-
chine.
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all responsibility for
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