Description Of Functions / Initial Operation; Initial Operation - Migatronic KMX 550 Manual De Instrucciones

DESCRIPTION OF FUNCTIONS
Together with a separate wire feed unit KMX 550 is a
powerful and comprehensive welding machine which
can be used for both MIG/MAG welding, MMA
electrode welding as well as carbon arc chiselling. The
machine is infinitely variable from the wire feed unit
MWF 11 or MWF 21. These wire feed units can be
connected to different control kits by request (please
see the MWF 11/21 instruction manual).
Power source
The power source is based on the sturdy thyristor
technology og consists of a three-phased transformer,
an thyristor controlled rectifier, an inductor and if
desired a water cooling unit for cooling of the welding
torch.
The power source has an air cooling which auto-
matically switches between two rates of speed. The
fan stops completely when the welding machine is not
used, i.e. around 4 minutes after welding stops, and
when the temperature in the power source is
sufficiently low. Water cooling stops likewise when the
machine is not used.
Indicator panel
The indicator panel indicates errors and shows
whether the machine is turned on.
Wire feed unit
(MWF 11 - 21)
See separate instruction manual.
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.

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
excession 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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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.
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.
How to connect the gas
The gas hose, which is connected to the rear of the
machine, should be connected to a stable 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).
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