Standard Accessories; Optional Accessories; Other Technical Data - Telwin TIG DC Series Bedienungsanleitung

in direct current (DC) and alternate current (AC). Equipped with HF (high frequency)
generator for contact free TIG strike. Flexible use with different types of material such
as steel, stainless steel, copper, titanium, aluminium, magnesium, etc.
Model with I max=250A
2
Arc welding machine on wheels, single-phase, ventilated, with thyristor electronic
control for TIG and MMA welding in direct current (DC) and alternate current (AC).
Equipped with HF (high frequency) generator for contact free TIG strike. Flexible
use with different types of material such as steel, stainless steel, copper, titanium,
aluminium, magnesium, etc.
2.2 STANDARD ACCESSORIES
- Torch (the R.A. version is water cooled).
- Return cable complete with earth clamp.
- Wheels kit.
- ARGON bottle adapter.
- Gas regulator.
- RA water cooling group (only for R.A. versions).
2.3 OPTIONAL ACCESSORIES
max=180A
Model with I
2
- MMA welding kit.
- Self-darkening mask: with fixed or adjustable filter.
Model with I max=250A
2
- Manual remote control 1 potentiometer.
- Manual remote control 2 potentiometers.
- Pedal remote control.
- TIG PULSE remote control.
- MMA welding kit.
- Self-darkening mask: with fixed or adjustable filter.
3. TECHNICAL DATA
3.1 DATA PLATE (FIG. A)
The most important data regarding use and performance of the welding machine are
summarised on the rating plate and have the following meaning:
1- Protection rating of the covering.
2- Symbol for power supply line:
1~: single phase alternating voltage;
3~: three phase alternating voltage.
3- Symbol S: indicates that welding operations may be carried out in environments
with heightened risk of electric shock (e.g. very close to large metallic volumes).
4- Symbol for welding procedure provided.
5- Symbol for internal structure of the welding machine.
6- EUROPEAN standard of reference, for safety and construction of arc welding
machines.
7- Manufacturer's serial number for welding machine identification (indispensable for
technical assistance, requesting spare parts, discovering product origin).
8- Performance of the welding circuit:
- U : maximum no-load voltage (open welding circuit).
0
- I /U : current and corresponding normalised voltage that the welding machine can
2 2
supply during welding.
- X : Duty cycle: indicates the time for which the welding machine can supply
the corresponding current (same column). It is expressed as %, based on a 10
minutes cycle (e.g. 60% = 6 minutes working, 4 minutes pause, and so on).
If the usage factors (on the plate, referring to a 40°C environment) are exceeded,
the thermal safeguard will trigger (the welding machine will remain in standby until
its temperature returns within the allowed limits).
- A/V-A/V: shows the range of adjustment for the welding current (minimum
maximum) at the corresponding arc voltage.
9- Technical specifications for power supply line:
- U : Alternating voltage and power supply frequency of welding machine (allowed
1
limit ±10%).
- I : Maximum current absorbed by the line.
1 max
- I : Effective current supplied.
1eff
10- : Size of delayed action fuses to be used to protect the power line.
11- Symbols referring to safety regulations, whose meaning is given in chapter 1
"General safety considerations for arc welding".
Note: The data plate shown above is an example to give the meaning of the symbols
and numbers; the exact values of technical data for the welding machine in your
possession must be checked directly on the data plate of the welding machine itself.
3.2 OTHER TECHNICAL DATA
- WELDING MACHINE: see table 1 (TAB.1).
- TORCH: see table 2 (TAB.2).
The welding machine weight is shown in table 1 (TAB. 1).
4. WELDING MACHINE DESCRIPTION
4.1 CONTROL, ADJUSTMENT AND CONNECTION DEVICES
Model with I max=180A (FIG. B)
2
1- Power supply cable 2P + (P.E.).
2- Gas pipe connection (bottle – welding machine pressure reducer).
3- Switch range 1, range 2, off.
4- AC/DC switch
- DC Direct current: for all heavy materials (steel, copper, titanium).
- AC Alternate current: for light materials (aluminium, magnesium and their alloys).
5- Graded scale.
6- Welding current control.
7- TIG torch gas pipe union.
8- Positive quick connector (+/~) for connecting the welding cable.
9- Negative quick connector (-/~) for connecting the welding cable.
10- Connector for torch pushbutton cable connection.
11- Yellow LED normally off, when lit, it indicates that the thermal relay has cut in:
the inside of the welding machine is too hot. The welding machine remains on
without issuing current until a normal temperature has been reached. Resetting is
automatic.
12- Green LED indicates that the welding machine is connected to the mains and
ready for use.
13- Post gas time adjustment.
14- TIG/MMA mode selector:
Operating mode: TIG 2 STROKES, TIG 4 STROKES and MMA mode.
15- TIG mode selector:
Operating mode:
- TIG DC with HF strike with automatic exclusion when arc is on;
- HF excluded;
- TIG AC with continuous HF.
Model with I max=250A (FIG. C)
2
1- Power supply cable 2P + (P.E.).
2- Gas pipe connection (bottle – welding machine reducer).
3- Main switch O/OFF – I/ON.
4- AC/DC switch
- DC Direct current: for all heavy materials (steel, copper, titanium).
- AC Alternate current: for light materials (aluminium, magnesium and their alloys).
5- Positive quick connector (+/~) for connecting the welding cable.
6- Negative quick connector (-/~) for connecting the welding cable.
7- Remote control connector:
Different types of remote controls can be applied to the welding machine using
the 14-pole connector at the back of the machine. Each device is recognised
automatically and can be used to adjust the following parameters:
- Remote control with one potentiometer:
Rotating the potentiometer knob the main current changes from minimum to
maximum. The main current can only be regulated using the remote control.
- Pedal remote control:
The current value is determined by the position of the pedal. In TIG 2T mode,
pressing the pedal commands a machine start instead of using the torch
pushbutton.
- Remote control with two potentiometers:
The first potentiometer adjusts the main current. The second potentiometer
adjusts another parameter that depends on the active welding mode. When this
potentiometer is rotated, the parameter being modified (that can no longer be
controlled with the panel knob) is displayed. The second potentiometer is the
FINAL RAMP if in TIG mode.
- TIG-PULSE remote control:
Allows TIG welding with pulsed current, with the possibility of remotely adjusting
the main parameters: base current intensity, impulse current intensity, current
impulse duration, current impulse period. This procedure can be used to control
the heat transfer in a better way, therefore allowing the user to weld very thin
material or materials that tend to crack with heat. In addition, it also favours the
welding of pieces with different thickness and different steels such as stainless
and low alloy.
8- TIG torch gas pipe union.
9- Connector for torch pushbutton cable connection.
10- Green LED voltage present at output.
11- Yellow LED: normally off, when lit, it indicates that the welding machine has
stopped because one of the following safeguards has cut in:
- Thermal cut-out: inside the welding machine the temperature is too high. The
welding machine remains on without issuing current until a normal temperature
has been reached. Resetting is automatic.
- Short circuit safeguard: a short circuit has intervened for longer than 1.5 sec
(electrode stuck) and the welding machine is stopped.
Resetting is automatic.
The following code appears on the display:
"°C" one of the safety thermostats has cut in because the welding machine is
overheating.
12- Alphanumeric display.
TIG/MMA mode selector:
13-
Operating mode: TIG 2 STROKES, TIG 4 STROKES and MMA mode.
14- TIG mode selector:
Operating mode:
TIG DC: HF strike with automatic exclusion when the arc is on.
TIG AC with continuous HF
TIG DC: LIFT strike,
TIG AC not possible. "Err HF" appears on the display.
15- ENCODER
Pushbutton and encoder for selecting and setting the welding parameters,
indicated when one of these LEDs illuminates: 16, 17, 18, 19, 20, 21.
16-
In TIG mode it represents the PRE-GAS time in seconds. It improves the start of
the welding.
17-
In TIG 4 stroke mode, it represents the initial current Is maintained for the whole
time during which the torch pushbutton is kept pressed (adjustment in Amperes).
- 6 -
PREGAS
INITIAL CURRENT