Telwin Inverspotter 13000 400V [6/144] Introduction and general description

Telwin Inverspotter 13000 400V [6/144] Introduction and general description
- The operator should either be expert or trained in resistance welding
- Electrical protection class : I
- Insulation class : H
procedures using this type of appliance.
- Enclosure protection rating : IP 20
- There should be risk evaluation for every type of job to be done; equipment
- Type of cooling : F A (forced air)
and masking should be provided to support and guide the work-piece (unless
- Overall Dimensions (LxWxH) : 650 x 500 x 900mm
a portable spot-welder is used).
- Weight : 40kg
- Whenever the shape of the piece allows it, adjust the electrode distance so
Input
that the stroke does not exceed 6 mm.
- Max. power in short circuit (Scc) : 38.5kVA
- Do not allow more than one person to work on the same spot-welder at the
- Power factor at Scc (cosj) : 0.8
same time.
- Main supply delayed fuses : 16A
- Unauthorised persons should not be allowed in the working area.
- Automatic circuit-breaker : 16A ("C"- IEC60947-2)
- Do not leave the spot-welder unattended: in such a case it should be
- Power supply cable (L£4m) : 4 x 2.5mm²
disconnected from the power supply; for pneumatic cylinder-operated spot
Output
welders turn the main switch to “O” and lock it with the supplied padlock, take
- Loadless secondary voltage (U d) : 7V
2
out the key and leave it with the person in charge.
- Max. spot-welding current (I max) : 8kA
2
- Welding capacity : max 3 + 3mm
- RISK OF BURNS
- Duty cycle : 1.8%
Some parts of the spot-welder (electrodes arms and nearby areas) may reach
- Spots/hour on 3+3mm steel : 95
temperatures of over 65°C: suitable protective clothing must be worn.
- Maximum electrode force : 200daN
- RISK OF TIPPING AND FALLING
- Arm projectio : 120mm standard
- Place the spot-welder on a level horizontal surface that is able to support its
- Spot-welding current adjustment : automatic and programmable.
weight; confine the spot-welder to the support surface (when required in the
- Spot-welding time adjustment : automatic and programmable.
“INSTALLATION” section of this manual). Otherwise with inclined or uneven
- Squeeze time adjustment : automatic and programmable.
floors or moveable supporting surfaces there is the danger of tipping.
- Ramp time adjustment : automatic and programmable.
- Never lift the spot-welder unless explicitly required by the “INSTALLATION”
- Holding time adjustment : automatic and programmable.
section of this handbook.
- Cooling time : automatic and programmable.
- Pulse number adjustment : automatic and programmable.
- IMPROPER USE
It is dangerous to use the spot-welder for any other purpose than that for which
3.2.2 Studder Generator
it is designed (spot resistance welding).
General specifications
- Power supply voltage and frequency : 565V ~ 1ph-80 Hz
- Electrical protection class : I
- Insulation class : H
PROTECTIONS
- Enclosure protection rating : IP 20
The safeguards and moveable parts of the spot-welder casing should all be in
- Type of cooling : N A (natural air)
position before connection to the power supply.
- Overall Dimensions (LxWxH) : 320 x 240 x 180mm
WARNING: All manual operations on moveable accessible parts of the spot welder,
- Weight : 15.5kg
for example:
- Electrode replacement or maintenance
Input (*)
- Adjusting the position of the arms or electrodes
SHOULD BE CARRIED OUT WITH THE SPOT-WELDER SWITCHED OFF AND
Output
DISCONNECTED FROM THE POWER SUPPLY (MAIN SWITCH LOCKED TO “O”
- Loadless secondary voltage : 9.5V
USING PADLOCK WITH KEY TAKEN OUT for PNEUMATIC CYLINDER-operated
- Max. spot-welding current (I max) : 3kA
2
models).
(*) NOTE: the generator is feeded exclusively by the proper connections to the main
unit of the spot welder.
2 INTRODUCTION AND GENERAL DESCRIPTION
See the characteristics of the spot welder.
2.1 INTRODUCTION
Movable system for microprocessor-controlled resistance welding (spot-welder),
medium frequency inverter technology, 3-phase power supply and direct current output.
4. DESCRIPTION OF THE SPOT-WELDER
The spot welding machine is equipped with a pneumatic, air cooled clamp.
4.1 CONTROL AND ADJUSTMENT DEVICES
Inside the clamp there is the transformer and rectifying group that, in comparison with
4.1.1 Control panel (Fig.B)
traditional spot welders, permits to have higher spot currents, reduced mains absorptions
Description of spot-welding parameters:
(the machine operates with 16 A fuses), longer and lighter cables for a better handiness
and a wider operation range as well as minium magnetic fields around the cables.
Power: percentage of supplyable power during spot-welding range from 5 to
According to the material used, to its thickness and to the tool used, the machine
100%.
suggests pre-set operating programmes and enables the user to store up to three
customized programmes.
Squeeze time: time for which the electrodes of the pneumatic clamp squeeze
The spot welding machine can operate on low carbon metal sheets, on steel and
stainless steels, galvanized and HSS metal sheets. The presence of the compact
the sheet to be spot-welded without delivering current; used to ensure that the
accessory generator allows the use of the Studder clamp and the carry out of many hot
electrodes reach the maximum pressure setting before delivering current
working jobs which are specific to the vehicles body-shops.
range from 10 to 50 cycles (1 cycle = 20ms).
The main features of the plant are:
- automatic recognition of the tool used;
Ramp time: time taken for the current to reach the maximum set value. For
- choice from panel of the tool to use;
pulsed operation with the pneumatic clamp this time is only applied to the first
- automatic choice of welding parameters according to the chosen material;
pulse range from 0 to 100 cycles.
- customization of welding parameters;
- visualization of welding parameters;
Spot-welding time: time for which the spot-welding current is held practically
- visualization of spot welding current;
- control of spot welding current;
constant. For pulsed operation with the pneumatic clamp this time is refers to
- pneumatic internal cooling by forced air with controlled insertion/start.
the duration of the single pulse range from 0,5 to 100 cycles (*).
2.2 STANDARD ACCESSORIES:
Cool time: (only for pulsed spot-welding) time elapsing between one current
- Clamp supports.
pulse and the next range from 0.5 to 20 cycles.
- Filter and reduction unit (compressed air supply).
- Pneumatic clamp complete with cable and plug removable from generator;
Number of pulses: (only for pulsed spot-welding) number of spot-welding
- Trolley.
current pulses, each lasting for the set spot-welding time range from 1 to 10 (**).
- 14 pin connector.
Hold time: time for which the electrodes of the pneumatic clamp continue to
2.3 OPTIONAL ACCESSORIES
squeeze the sheets that have just been spot-welded, without delivering current.
- Arms and electrodes set having length and/or shape for the air cooled pneumatic
During this interval the welded spot will be cooled and the welded core will
clamp (see spare parts list).
crystallise; during this stage the pressure will refine the metal grain, increasing
- Compact generator to use with studder kit.
the mechanical strength range from 2 to 50 cycles.
- Studder kit complete with separated earth cable and accessories case.
(*)NOTE: the sum of ramp cycles and spot-welding cycles may not exceed 100 (2
seconds).
3. TECHNICAL DATA
(**)NOTE: the maximum possible setting for the number of pulses depends on the length
3.1 RATING PLATE (Fig.A)
of a single pulse: the total effective spot-welding time may not exceed 100 cycles.
The main data regarding use and performance of the spot-welder are summarised on
the rating plate and have the following meanings.
1 - Number of phases and frequency of power supply.
1- Dual function key "A"
2 - Power supply voltage.
3 - Mains power with permanent running (100%).
4 - Rated mains power with 50% duty cycle.
5 - Maximum loadless voltage over electrodes.
a) BASIC FUNCTION : sequential display of spot-welding parameters:
6 - Maximum current when electrodes are shorted.
7 - Current to secondary when running permanently (100%).
supplyable power/current, squeeze time, ramp time, spot-welding time,
8 - Safety symbols, the meaning of which is given in chapter 1 "General safety rules
for resistance welding".
cool time (only in pulsed mode), number of pulses (only in pulsed mode),
Note: The rating plate shown is an example to show the meaning of the symbols and
numbers; the exact values of the technical properties of your spot-welder can be found on
hold time.
the rating plate of the spot-welder itself.
3.2 OTHER TECHNICAL DATA
b) SPECIAL FUNCTION : changing the spot-welding parameters on display: to
3.2.1 Spot-welding machine
enter this function it is necessary to follow the procedure described in section 6.2.2 .
General specifications
- Power supply voltage and frequency : 400V(380V-415V) ~ 3ph-50/60 Hz
2 Key "B" for selecting the function used and displaying the tool used:
- 6 -

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