Deca D-MIG 532TDKE [9/68] Description of the welding machine
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Deca D-MIG 532TDKE [9/68] Description of the welding machine

Deca D-MIG 532TDKE [9/68] Description of the welding machine
8
950539-06 09/06/16
M) Safety symbols: Refer to Safety Warnings
Technical data for torch and wire feeder Fig.3
Starting up
Connections to the mains must be made by expert or qualied personnel.
Make sure that the welding machine is switched off and the plug is not in the power
socket before carrying out this procedure.
Make sure that the power socket that the welding machine is plugged into is protected
by safety devices (automatic switch) and grounded.
The device must be connected only to a supply system, with an earthed ‘neutral’ lead.
Assembly and electrical connections
¾ Assembly the detached parts found in the packaging Fig.10.
¾ Check that the electrical supply delivers the voltage and frequency corresponding to
the welding machine and that it is tted with an automatic switch suited to the maximum
delivered rated current (I2max) Fig. 4,1.
L The requirements set out in the IEC/EN61000-3-12 standard do not apply to this
equipment. If this equipment is connected to low voltage power supply network, either
the installer or the user is responsible for checking that this can be done (consult the
distribution system operator if required).
¾ Plug. If the welding machine is not tted with a plug, t a normalised plug (2P+T for 1Ph
and 3P+T for 3Ph) of suitable capacity to the power cable Fig.4,2.
¾ If the welding machine is designed to operate at two different voltages, select the required
voltage on the terminal board, which is accessed by removing the cover. Fig. 5.
L The welding machines are set to the highest voltage at the factory.
Preparing the welding circuit
¾ Connect the ground lead to the welding machine and to the piece to be welded, as close
as possible to the point to be welded.
¾ Connect the torch
** to the welding machine socket.
¾ Select the polarity of the torch**.
¾ The torch polarity must be negative “-” for cored wire and positive “+” for all other types
of wire. For selection follow the instructions in Fig.8 .
L The recommended sections (mm2) of the welding cable, based on the maximum
delivered rated current (I2 max), are shown in Fig. 4,3.
L The torches with speed controls on the handle and Spool guns have a pin that must
be connected in the socket G Fig. 1.
Installing the continuous wire
For installation, follow the instructions in Fig. 6.
The material and diameter of the wire must correspond to the wire feeder roller Fig.
6,5,a, the contact tip Fig. 6,9,b and the torch liner. If the measurements do not match,
there may be problems with the smooth running of the wire.
L The pressure of the wire pressing knob Fig. 6,5,c is important for correct operation. If
the wire slips, there will be problems with the welding; if on the other hand it is too tight,
it may be deformed and will not run smoothly through the torch. It can be adjusted as
follows: screw the wire pressing knob until it starts to draw the wire, then, if the wire
is soft (aluminium, cored wire) turn the screw once more; if the wire is hard (steel,
stainless steel, etc.) turn the screw three more times.
L To remove the continuous wire easily from the welding machine, cut the wire between
the spool and the wire feeder, keeping it taut, and then tie it to the spool. The open the
wire guider arm and, using a pair of pliers, pull the piece of wire out of the torch.
Installing the protective gas cylinder** and pressure reducer**
Place the protective gas cylinder in an upright position, far away from the welding area.
Use the welding machine support or some other xed part so that there is no risk of it
falling or being damaged.
For installation, follow the instructions in Fig. 7.
Gas Application
Argon All non-ferrous metals (aluminium)
Argon + 1-3%O2 Stainless steel
Argon + 20%CO2 Low carbon steel
CO
2 Low carbon steel
L Argon/CO2 is preferable to CO2 as it guarantees better results.
L Close the gas valve on the cylinder and zero-set the pressure reducer once you have
nished work.
** (This component may not be included with some models).
Welding process: description of controls and signals
Once you have put the welding machine into operation, switch it on, open the protective
gas valve and carry out the adjustments following the order shown in the description of
the controls, Fig. 1.
Synergic MIG control
The Synergic MIG control facilitates the welding machine operator’s work as it manages
wire speed, soft start and burn back in a synergic way with the rest of the machine settings.
The welding machine operator must simply activate one of the pre-set programs.
The Synergic MIG control is active with all the torches provided for the welding
machine.
Do not place your body between the welding cables. Both welding cables should be on
the same side of your body.
Twist both welding cables together and secure them with tape when possible.
Do not wrap the welding cables around your body.
Connect the earth cable to the workpiece as close as possible to the area to be
welded.
Do not work with the welder hanging from your body.
Keep your head and trunk as far as possible from the welding circuit. Do not work close
to the welder, or seated or leaning on it. Minimum distance: Fig 11 Da = cm 50; Db
= cm.20
Class A equipment
This equipment has been designed to be used in professional and industrial
environments.
If this equipment is used in domestic environments and those directly connected to a
low voltage power supply network which supplies buildings used for domestic purposes,
it may be difcult to ensure compliance to electromagnetic compatibility as the result of
conducted or radiated disturbances.
Welding in conditions of risk
If welding needs to be done in conditions of risk (electric discharges, suffocation, the
presence ofinammableorexplosivematerials), make sure that an authorised expert
evaluates the conditions beforehand. Make sure that trained people are present who
can intervene in the event of an emergency. Use the protective equipment described in
5.10; A.7; A.9 of the IEC or CLC/TS 62081 technical specication.
If you are required to work in a position raised above ground level, always use a safety
platform.
If more than one welding machine has to be used on the same piece, or in any case on
pieces connected electrically, the sum of the no-load voltages on the electrode holders
or on the torches may exceed the safety levels. Make sure that an authorised expert
evaluates the conditions beforehand to see if such risk exists and adopt the protective
measures described in 5.9 of the IEC or CLC/TS 62081 technical specication if
required.
Additional warnings
Do not use the welding machine for purposes other than those described, for example
to thaw frozen water pipes.
Place the welding machine on a at stable surface, and make sure that it cannot move.
It must be positioned in such a way as to allow it to be controlled during use but without
the risk of being covered with welding sparks.
Do not lift the welding machine. No lifting devices are tted on the machine.
Do not use cables with damaged insulation or loose connections.
Description of the welding machine
The welding machine is a current generator for continuous wire welding, commonly
known as MIG / MAG, suited to welding carbon or light alloy steels, stainless steel and
aluminium using protective gas.
The electrical characteristic of the transformer is at
(constant voltage).
This manual refers to a range of welding machines that differ in some of their
characteristics. Identify your model in Fig. 1.
Main parts Fig. 1
A) Spool compartment access door
B) Spool holder reel
C) Wire feeder
D) Power cable
E) Gas hose connection
F) ON/OFF switch
G) Special torch connector**
H) Torch connector
I) Ground cable
L) Protective fuses
M) Voltage change terminal board**
** (This component may not be included on some models).
Technical data
A data plate is afxed to the welding machine. Fig. 2 shows an example of this plate.
A) Constructor name and address
B) European reference standard for the construction and safety of welding equipment
C) Symbol of the welding machine internal structure
D) Symbol of the foreseen welding process
E) Symbol of the continuous current delivered
F) Input power required:
1˜ alternate single phase voltage, frequency
3˜ alternate three-phase voltage, frequency
G) Level of protection from solids and liquids
H) Symbol indicating the possibility to use the welding machine in environments
potentially subject to electric discharges
I) Welding circuit performance
U0V Minimum and maximum open circuit voltage (open welding circuit).
I2, U2 Current and corresponding normalised voltage delivered by the welding
machine.
X Duty cycle. Indicate how long the welding machine can work for and how
long it must rest for in order to cool down. The time is expressed in % on the
basis of a 10 minute cycle (e.g. 60% means 6 min. work and 4 min. rest).
A / V Current adjustment eld and corresponding arc voltage.
J) Power supply data
U1 Input voltage (permitted tolerance: +/- 10%)
I1 eff Effective absorbed current
I1 max Maximum absorbed current
K) Serial number
L) Weight

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