Telwin TECHNOMIG 225 DUAL SYNERGIC Bedienungsanleitung Seite 7

- Not enabled
3- LCD display
4- selection, if pressed of the SPOOL GUN
5- LED torch setting indicator T1, T2 and SPOOL GUN
5. INSTALLATION
ATTENTION! THE WELDING MACHINE MUST BE TURNED OFF AND
DISCONNECTED FROM
INSTALLATION AND POWER CONNECTION OPERATIONS.
THE ELECTRICAL CONNECTIONS MUST ONLY BE CARRIED OUT BY EXPERT OR
QUALIFIED TECHNICIANS.
Fig. D (version 180A with wheels)
Fig. D1 (version 270A)
Fig. D2, D3 (double torch version)
Unpack the welding machine and assemble the separate parts included in the package.
Assembling the clamp-return cable Fig. E
Assembling the welding cable electrode-holder clamp FIG. F
Assembling the torch holder hook (where available) FIG. G
5.1 POSITIONING THE WELDING MACHINE
Choose the place where the welding machine is to be installed so that there are no
obstructions to the cooling air inlets and outlets; at the same time make sure that conductive
dust, corrosive vapours, humidity etc. cannot be drawn into the machine.
Leave at least 250 mm of free space all around the welding machine.
WARNING! Position the welding machine on a level surface with sufficient
load-bearing capacity, so that it cannot be tipped over or shift dangerously.
5.2 CONNECTION TO THE MAIN POWER SUPPLY
- Before making any electrical connection, check the rating plate data on the welding
machine to make sure they correspond to the voltage and frequency of the available
power supply where the machine is to be installed.
- The welding machine must be connected only and exclusively to a power supply with the
neutral conductor connected to earth.
- To guarantee protection against indirect contact use the following types of residual
current devices:
- Type A ( ) for single-phase machines.
- Type B ( ) for 3-phase machines.
- In order to satisfy the requirements of the EN 61000-3-11 (Flicker) standard we recommend
connecting the welding machine to the interface points of the main power supply that
have an impedance of less than Zmax = 0.24 ohm.
- The IEC/EN 61000-3-12 Standard does not apply to the welding machine.
If the welding machine is connected to an electrical grid, the installer or user must make
sure that the machine can indeed be connected (if necessary, consult the company that
manages the electrical grid).
5.2.1 Plug and outlet
(1~)
Connect the power supply plug to a mains socket fitted with fuses or an automatic circuit-
breaker; the corresponding earth terminal should be connected to the (yellow-green) earth
conductor of the power supply.
(3~)
Connect a normalised plug (3P + P.E) - having sufficient capacity- to the power cable and
prepare a mains outlet fitted with fuses or an automatic circuit-breaker; the special earth
terminal should be connected to the earth conductor (yellow-green) of the power supply
line.
Table (TAB. 1) shows the recommended delayed fuse sizes in amps, chosen according to
the max. nominal current supplied by the welding machine, and the nominal voltage of the
main power supply.
WARNING! Non-compliance with the above regulations renders the
manufacturer's safety system (class I) inefficient, with resulting serious risks
to people (e.g. electric shock) and things (e.g. fire).
5.3 WELDING CIRCUIT CONNECTION
5.3.1 Recommendations
ATTENTION! BEFORE CARRYING OUT THE FOLLOWING CONNECTIONS,
MAKE SURE THE WELDING MACHINE IS OFF AND DISCONNECTED FROM THE
MAINS.
Table 1 (TAB. 1) gives the recommended values for welding cables (in mm
maximum energy supplied by the welding machine.
In addition:
- Fully rotate the welding cable connectors in the quick couplings (if present), to guarantee
perfect electric contact; if this is not the case the connectors will overheat with consequent
fast deterioration and loss of efficiency.
- Use the shortest welding cables possible.
- Do not use metal structures that are not part of the workpiece to replace the welding
current return cable; this can endanger safety and give unsatisfactory welding results.
5.3.2 WELDING CIRCUIT CONNECTIONS IN MIG-MAG MODE
5.3.2.1 Gas cylinder connection (if used)
- Loadable gas cylinder on the support surface of the trolley: max 30kg (where available).
- Screw the pressure reducer (*) onto the cylinder gas valve, inserting the specific reduction
supplied as an accessory, when Argon gas or an Argon/CO
- Connect the input hose of the gas reducer and tighten with the strip.
- Loosen the adjustment ring nut of the pressure reducer before opening the cylinder valve.
(*) Accessory to purchase separately if not supplied with the product.
5.3.2.2 Connecting the welding current return cable
Connect the cable to the piece to be welded or the metal bench on which the workpiece is
placed, as close as possible to the joint being worked.
5.3.2.3 Torch
Prepare the torch to receive the wire for the first time, removing the nozzle and the contact
pipe, to make exiting easier.
THE MAINS BEFORE COMMENCING
) according to the
2
mix is used.
2
5.3.2.4 Internal polarity change (where available)
- Open the reel area door.
- MIG/MAG welding (gas):
- Connect the torch cable to the red clamp (+) (Fig. B-18)
- Connect the clamp return cable to the negative fast coupling (-) (Fig. B-19)
- FLUX welding (no gas):
ANY
- Connect the torch cable to the black clamp (-) (Fig. B-19).
- Connect the clamp return cable to the positive fast coupling (+) (Fig. B-18).
- Close the reel area door.
5.3.2.5 External polarity change (where available)
- MIG/MAG welding (gas):
- Connect the torch cable to the torch coupling (Fig. B-4).
- Connect the fast coupling plug (Fig. B-7) to the positive coupling plug (+) (Fig. B-5).
- Connect the clamp return cable to the negative fast coupling (-) (Fig. B-6).
- FLUX welding (no gas):
- Connect the torch cable to the torch coupling (Fig. B-4).
- Connect the fast coupling plug (Fig. B-7) to the negative coupling (-) (Fig. B-6).
- Connect the clamp return cable to the positive fast coupling (+) (Fig. B-5).
5.3.3 WELDING CIRCUIT CONNECTION IN TIG MODE
5.3.3.1 Connecting the gas bottle
- Screw the pressure reducer onto the gas bottle valve, placing the relative reduction
supplied as an accessory between them;
- Connect the gas input hose to the pressure reducing valve and tighten the supplied strip.
- Loosen the adjustment ring nut of the pressure reducing valve before opening the gas
bottle valve.
- Open the gas bottle and adjust the quantity of gas (l/min.) according to the recommended
usage data, see table (TAB. 5); the gas flow can be adjusted while welding, always using
the ring nut of the pressure reducer. Check the seal of the hoses and connections.
ATTENTION! Always close the gas bottle valve when you have finished
working.
5.3.3.2 Connecting the welding current return cable
- Connect the cable to the piece to be welded or the metal bench on which the workpiece
is placed, as close as possible to the joint being worked. Connect this cable to the clamp
with the symbol (+) (Fig. B-5).
5.3.3.3 Torch
- Insert the current cable in the specific fast clamp (-) (Fig. B-6). Connect the gas hose of the
torch to the cylinder.
5.3.4 WELDING CIRCUIT CONNECTIONS IN MMA MODE
Almost all the coated electrodes should be connected to the positive pole (+) of the
generator; an exception is the negative pole (-) for electrodes with acid coating.
5.3.4.1 Connection of the electrode-holder clamp welding cable
Bring a special clamp on the clamp used to tighten the exposed part of the electrode.
Connect this cable to the clamp with the symbol (+) (Fig. B-5).
5.3.4.2 Connecting the welding current return cable
- Connect the cable to the piece to be welded or the metal bench on which the workpiece
is placed, as close as possible to the joint being worked. Connect this cable to the clamp
with the symbol (-) (Fig. B-6).
5.4 LOADING THE WIRE SPOOL (Fig. H, H1, H2)
WARNING! BEFORE STARTING THE OPERATIONS TO LOAD THE WIRE MAKE
SURE THE WELDING MACHINE IS SWITCHED OFF AND DISCONNECTED
FROM THE MAIN POWER SUPPLY OUTLET.
MAKE SURE THAT THE WIRE FEEDER ROLLERS, THE WIRE GUIDE HOSE AND THE CONTACT
TIP OF THE TORCH MATCH THE DIAMETER AND TYPE OF WIRE TO BE USED AND MAKE SURE
THAT THESE ARE FITTED CORRECTLY. WHEN INSERTING AND THREADING THE WIRE DO NOT
WEAR PROTECTIVE GLOVES.
- Open the reel compartment door.
- Position the wire reel on the spindle, holding the end of the wire upwards; make sure the
tab for pulling the spindle is correctly seated in its hole (1a).
- Release the pressure counter-roller(s) and move them away from the lower roller(s) (2a);
- Make sure that the towing roller(s) is suited to the wire used (2b).
- Free the end of the wire and remove the distorted end with a clean cut and no burr; turn
the reel anti-clockwise and thread the end of the wire into the wire-guide infeed, pushing
it 50-100mm into the wire guide of the torch fitting (2c).
- Re-position the counter-roller(s), adjusting the pressure to an intermediate value, and
make sure that the wire is correctly positioned in the groove of the lower roller(s) (3)
- Remove the nozzle and contact tip (4a).
- Insert the welding machine plug in the power supply outlet, switch on the welding
machine, press the torch button and wait for the end of the wire to pass through the
whole of the wire guide hose and protrude by 10-15 cm from the front part of the torch,
release the button.
WARNING! During these operations the wire is live and subject to mechanical
stress; therefore if adequate precautions are not taken the wire could cause
hazardous electric shock, injury and striking of electric arcs:
- Do not direct the mouthpiece of the torch towards parts of the body.
- Keep the torch away from the gas bottle.
- Re-fit the contact tip and the nozzle onto the torch (4b).
- Check that wire feed is regular; set the roller and spindle braking pressure to the minimum
possible values making sure that the wire does not slide in the groove and when feed is
halted the loops of wire are not loosened by excessive reel inertia.
- Cut the end of the wire so that 10-15 mm protrude from the nozzle.
- Close the reel compartment door.
5.5 LOADING THE WIRE SPOOL ONTO THE SPOOL GUN (Fig. I)
ATTENTION! BEFORE LOADING THE WIRE, MAKE SURE THE WELDING
MACHINE IS OFF AND DISCONNECTED FROM THE MAINS.
MAKE SURE THE WIRE FEEDERS, THE WIRE GUIDE HOSE AND THE TORCH CONTACT PIPE
CORRESPOND WITH THE DIAMETER AND NATURE OF THE WIRE TO BE USED AND THAT THEY
ARE CORRECTLY MOUNTED. DO NOT WEAR PROTECTIVE GLOVES WHEN THREADING THE
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Fig. B
Fig. B