Telwin DIGITAL MIG 180 SYNERGIC [6/84] Welding description of the procedure

- Release the pressure counter-roller(s) and move them away from the lower NOTE: during welding the display will show the actual value of the current.

roller(s)(2a);

- It is possible to modify the wire feed rate by adjusting the spool gun potentiometer,

and the display will instantly show the corresponding value; the current reading will

- Make sure that the towing roller(s) is suited to the wire used (2b).

re-appear as soon as the adjustment has been completed.

- Free the end of the wire and remove the distorted end with a clean cut and no burr;

- Under critical welding conditions, the wire diameter LED will flash.

turn the reel anti-clockwise and thread the end of the wire into the wire-guide infeed,

(3)

- Use the adjustment screw located at the centre of the spindle to apply a slight

braking pressure on the spindle itself (1b).

- 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.

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WARNING! During these operations the wire is live and subject to

- 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.

5.7 LOADING THE WIRE REEL ONTO THE SPOOL GUN

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WARNING! BEFORE STARTING THE OPERATIONS TO LOAD THE WIRE

MAKE SURE THE WELDING MACHINE IS SWITCHED OFF AND DISCONNECTED

FROM THE MAIN POWER SUPPLY OR THAT THE SPOOL GUN IS

CORRECTLY. DO NOT WEAR PROTECTIVE GLOVES WHEN THREADING IN THE

WIRE.

- Remove the cover by undoing the appropriate screw (1).

- Position the wire reel on the reel holder.

- Free the pressure counter-roller and move it away from the lower roller (2).

- Free the end of the wire, cut off the distorted end with a clean cut leaving no burrs;

turn the reel anti-clockwise and thread the end of the wire into the wire-guide infeed,

pushing it 50-100mm inside the lance (2).

- Reposition the counter-roller, adjusting the pressure to an intermediate value and

make sure the wire is correctly positioned in the lower roller recess (3).

for 10-15 cm to come out of the front of the torch, release the torch button.

6. WELDING: DESCRIPTION OF THE PROCEDURE

- Only for the 3-phase version:

Insert the earth outlet in the desired quick (-) connector, depending on the material to

be welded

Fig. G1-L

- Set the welding current by means of the switch and rotary switch (if present) (Fig.M).

- The display will show the welding current corresponding to the setting that has just

- Select the welding mode by pressing button 9.

- Press the torch button to start welding.

feed rate).

6.2 WELDING WITH THE SPOOL GUN (Fig. B,C)

- Switch on the welding machine,

- Select the type of material, the type of gas and the wire diameter by pressing buttons

- Set the welding current by means of the switch and rotary switch (if present) (Fig.M).

- The display will show the welding current corresponding to the setting that has just

- Press button 6 until LED 5 lights up. Use knob 7 to set spot duration.

- Press the torch or spool gun button and start welding. It will stop automatically after

- See also Fig. N for directions relating to the procedure.

6.4 OVERLOAD PROTECTION (Fig. C)

The thermostatic protection LED 1 lights up when there is overheating (also, the

display shows the message ALL thr) and cuts off the power supply; the system is reset

automatically after a few minutes' cooling.

6.5 PROGRAMMING THE WELDING PARAMETERS (Fig. C)

The DEFAULT values for the accessory welding parameters (slope up, burn-back time,

Wire feed rate slope up:

Adjustment range nor, r_1, ..., r_9 (nor = start without slope, r_1 = very quick start,

r_9 = very slow start).

Burn-back time:

Adjustment range 0-1sec.

Post-gas time:

Adjustment range 0-3sec.

- To restore the factory (default) setting press buttons 9 and 10 simultaneously for 3

seconds.

- To store the defined value and exit programming mode, press button 6 again for at

SURE THE WELDING MACHINE IS SWITCHED OFF AND DISCONNECTED FROM

THE MAIN POWER SUPPLY.

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7.1 ROUTINE MAINTENANCE:

ROUTINE MAINTENANCE OPERATIONS CAN BE CARRIED OUT BY THE

OPERATOR.

7.1.1 Torch

- Do not put the torch or its cable on hot pieces; this would cause the insulating