Telwin DIGITAL CAR PULLER 5000 (400V) [7/104] Installation

it being damaged. neutral conductor connected to earth.

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The spot welder does not fall within the requisites of IEC/EN 61000-3-12 standard.

Should it be connected to a public mains system, it is the installer's responsibility to

4.2 CONTROL PANEL (FIG. B2)

verify that the spot welding machine itself is suitable for connecting to it (if necessary,

1- Spot welding operation selection key

consult the distribution network company).

Allows the user to select the different spot welding operations.

terminal should be connected to the (yellow-green) earth conductor of the power line.

correct electrodes.

The capacity and specifications of the fuses and circuit-breaker are given in the

paragraph on “TECHNICAL DATA”.

Should more than one spot-welder be installed, distribute the power cyclically among

2: For the spot welding of Ø 4mm screws with the correct electrode.

the three phases in order to obtain amore balanced load; e.g.:

spot-welder 1: power supply L1-L2;

spot-welder 2: power supply L2-L3;

spot-welder 3: power supply L3-L1.

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: For sheets upsetting with the correct electrode.

5.5 CONNECTING THE MANUAL CLAMP AND STUDDER GUN WITH EARTH

CABLE (only for model 3kA - FIG. C)

- Connect the DINSE plugs to their corresponding sockets.

3- Keys for adjusting the spot welding energy:

- Insert the control cable connector into its socket.

The spot welding energy value of each spot welding function can be varied using these

keys

checks and adjustments, which should be carried out with the main switch in the “O”

Shows any alarm signals (A1, A2, A3, A4).

position.

- Ensure that the electrical connections are correct, in accordance with the above

instructions.

5- * : "Spot welder operating" signalling LEDs.

Only for model 3kA:

- When using the manual clamp (Optional), remember that the force exercised by the

electrodes during the spot welding can be adjusted using the knurled nut (Fig. D);

6- +: Thermal safeguard signalling LED (A1, A2).

- Between the electrodes, slide a shim equivalent to the thickness of the sheets;

The display (4) shows "A1" when the thermostat cuts in during normal

ensure that the arms, brought together manually, are parallel and that the electrode

use, and "A2" when the thermostat cuts in because of a fault (in this

holders are centred (tips coincide).

case switch off the machine and contact the technical support centre).

- If necessary loosen the arm locking screws to adjust the arms by turning them both or

moving them in either direction along their axis; on completion secure the locking

7- , : Main power line signalling LEDs (A3, A4):

screws tightly.

- Spot-welding current.

. Normal power line voltage (spot welder being supplied correctly).

- Spot-welding time.

If without specific experience, it is advisable to carry out some spot welding tests using

sheets of the same quality and of the correct thickness for the work to be carried out.

/ : High power line voltage (spot welder being oversupplied). The display (4)

Correct spot execution can be verified by draw testing the sample. If the kernel of the

welding point can be extracted from one of the two sheets, execution is correct.

modified using the key (1), but must remain within the pre-set limits. As an example,

5. INSTALLATION

with a low supply voltage (LED ( -) lit) it may be necessary to slightly increase the

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spot welding time, and viceversa if the ( / ) LED is lit. This modification is possible at

all times, in order to satisfy specific requirements.

ELECTRICAL AND PNEUMATIC CONNECTIONS WITH THE SPOT-WELDER

Model 2.5kA (Fig. B-2):

COMPLETELY SWITCHED OFF AND DISCONNECTED FROM THE POWER

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must remain within the pre-set limits.

6.3 PROCEDURE

5.1 PRELIMINARY OPERATIONS

Unpack the spot-welder, assemble the separate parts included in the package.

5.2 LIFTING THE SPOT-WELDER

WARNING: None of the spot-welders described in this handbook have lifting devices.

ensuring completely safe access to the control panel, to the main switch and to the

reduce the efficiency of the weld).

working area.

Ensure that there are no obstacles near the cooling air inlets and outlets and that no

been selected.

conductive dusts, corrosive vapour, moisture etc. can be sucked in.

Position the spot-welder on a plane surface made of uniform, compact material able to

support the weight (see the “technical data”) so as to prevent it from tipping or moving

5.4.1 Warnings

Alternatively to method b1 (when practical difficulties arise) proceed as follows:

Before making any electrical connection, make sure the rating data of the spot-welder

correspond to the mains voltage and frequency available at the place of installation.

the slit in the copper bar and lock it with the supplied terminal.

The spot-welder should be connected only and exclusively to a power supply with the