TIG 220 DC HF FV - Welding machine GYS - Free user manual and instructions

Product type	TIG DC HF welding machine with MMA process
Brand	GYS
Model	TIG 220 DC HF FV
Power supply voltage	110-240 V single-phase (Flexible Voltage)
Frequency	50/60 Hz
Nominal output current (TIG)	5 to 220 A
Nominal output current (MMA)	10 to 200 A
Open circuit voltage	76 V
Peak ignition voltage	9 kV
Duty cycle at 40°C (TIG at 220 A)	30%
Duty cycle at 40°C (MMA at 200 A)	25%
Dimensions (L x W x H)	42 x 23 x 35 cm
Weight	12 kg
Protection degree	IP21
Welding processes	TIG DC, pulsed TIG DC, spot TIG, MMA
Ignition types	HF (high frequency) non-contact, Lift (contact)
Torch modes	2T, 4T, 4T LOG
Welding functions	Pre-gas, post-gas, ramp up/down, hot start, arc force, pulsed mode
Program memories	10 in TIG, 10 in MMA
Remote control	Manual (ref. 045675) or foot pedal (ref. 045682)
Compatible cooler	WCU0.5kW_A or WCU1kW_A (optional)
Torch connector	SRL18 connector for 1 or 2 trigger torch + potentiometer
Recommended maintenance	Regular dusting, checking connections, inspecting power cable
Safety	Thermal protection, over/under voltage protection, emergency stop by switch
Warranty	2 years parts and labor
Included accessories	CEE17 3-pole 16A plug, power cable

Frequently Asked Questions - TIG 220 DC HF FV GYS

What is the required power supply for the TIG 220 DC HF FV?

The machine accepts a single-phase voltage from 110 to 240 V (Flexible Voltage) with a frequency of 50/60 Hz. The recommended fuse is 16 A for 230 V and 32 A for 110 V.

How to switch between TIG and MMA modes?

Use the process selection button on the front panel. Turn the knob to choose between TIG (with or without pulse) and MMA. The display shows the active mode.

What is the difference between HF and LIFT ignition?

HF (high frequency) ignition strikes the arc without contact between the electrode and the workpiece. LIFT ignition requires a brief contact followed by lifting. LIFT is recommended in environments sensitive to electromagnetic interference.

How to adjust the current in TIG mode with a remote control?

Connect the remote control (manual or foot pedal) to the rear connector. The machine automatically detects the type. With the manual control, the current varies from 50% to 100% of the set value. With the foot pedal, it varies from 0 to 100%.

What to do if the thermal protection indicator lights up?

This indicates overheating. Leave the machine on but in standby (do not cut power) to allow the fan to cool down. The indicator turns off automatically when the temperature drops.

How to use PULSE mode in TIG?

Select TIG PULSE mode. Set the welding current (I), the cold current (in % of I), and the pulse frequency (F in Hz). The current alternates between I and I_cold at the chosen frequency, which limits temperature rise.

What type of electrode to use for MMA welding?

The TIG 220 DC accepts all coated electrodes: rutile, basic, stainless steel, and cast iron. Follow the polarities and currents indicated on the electrode packaging.

How to save a welding setup?

Press the JOB button to access the program menu. Select 'IN' then choose a location from P1 to P10. Confirm to save. To recall, go to 'OUT' and choose the desired program.

What is the regular maintenance procedure?

Disconnect the machine and wait 2 minutes. Remove the cover and dust the interior with a blower. Check electrical connections and the condition of the power cable. Annual maintenance by a professional is recommended.

Can I connect the machine to a generator?

Yes, provided the generator supplies an AC voltage between 110 and 240 V, with a frequency of 50-60 Hz and a peak voltage below 400 V. Check these parameters to avoid damaging the machine.

USER MANUAL TIG 220 DC HF FV GYS

Line drawings of two industrial testing devices with control panels and buttons (no text or symbols)

FR 2 / 3-14 / 86-92

EN 2 / 15-25 / 82-92

DE 2 / 26-37 / 82-92

ES 2 / 38-49 / 82-92

RU 2 / 50-61 / 82-92

NL 2 / 62-73 / 82-92

IT 2 / 74-85 / 82-92

TIG 220 DC

TIG 300 DC

FIG-1
TIG 220 DCTIG 300 DC

Technical diagram of an electronic device with numbered components for identification

Technical diagram of a device with numbered components, likely an air conditioning unit or enclosure.

Technical diagram of a device with numbered components for identification

Technical diagram of a device with numbered parts labeled 6, 7, 8, and 9 pointing to internal components.

FIG-2

INVERTER WELDER 888 A V S/Hz % A V JOB 7 5 10s 4 F(Hz) 0s 20s TIG - HF TIG - LIFT MMA 2T 4T 4T LOG %I + - Pulse F(Hz) %I Spot MMA Pulse F(Hz) 1 2 3

AVERTISSEMENTS - RÈGLES DE SÉCURITÉ

CONSIGNE GÉNÉRALE

INSTALLATION – FONCTIONNEMENT PRODUIT

INTERFACE HOMME MACHINE (IHM) (FIG-2)

888 A V S/Hz % A V JOB TIG - HF TIG - LIFT MMA - + MMA Pulse FIND

MMA (MMA PULSE)

888 A V S/Hz % A V JOB 10s 20s TIG - HF 2T TIG - LIFT 4T MMA 4T/OG %T - + Pulse (590%) Spot

INVERTER WELDER 888 A V S/Hz % A V JOB 10r 20r TIG - HF 2T TIG - LIFT 4T MMA AT (sec. m) Pulse 2bit 1 Spot MMA Pulse 1

888 A V S/Hz % A V JOB TIG - HF 2T TIG - LIFT 4T MMA Spot MMA Pattern INVERTER WELDER

Bouton principal T1 T2

P L DB 1 5 2 4 2 3 P torch L torch DB torch

4 3 5 2 6 1 NC

DB torch L torch 2 3 4 2 5 1 DB + P torch

MESSAGES D'ERREUR, ANOMALIES, CAUSES, REMÈDES

Read and understand the following safety recommendations before using or servicing the unit. Any change or servicing that is not specified in the instruction manual must not be undertaken.

The manufacturer is not liable for any injury or damage caused due to non-compliance with the instructions featured in this manual. In the event of problems or uncertainties, please consult a qualified person to handle the installation properly.

ENVIRONMENT

This equipment must only be used for welding operations in accordance with the limits indicated on the descriptive panel and/or in the user manual. The operator must respect the safety precautions that apply to this type of welding. In case of inedaquate or unsafe use, the manufacturer cannot be held liable for damage or injury.

This equipment must be used and stored in a place protected from dust, acid or any other corrosive agent. Operate the machine in an open, or well-ventilated area.

Operating temperature:

Use between -10 and +40°C (+14 and +104°F).

Store between -20 and +55°C (-4 and 131°F).

Air humidity:

Lower or equal to 50% at 40°C (104°F).

Lower or equal to 90% at 20°C (68°F).

Altitude:

Up to 1000 meters above sea level (3280 feet).

PROTECTION OF THE INDIVIDUALS

Arc welding can be dangerous and can cause serious and even fatal injuries.

Welding exposes the user to dangerous heat, arc rays, electromagnetic fields, noise, gas fumes, and electrical shocks. People wearing pacemakers are advised to consult with their doctor before using this device.

To protect oneself as well as the other, ensure the following safety precautions are taken:

In order to protect you from burns and radiations, wear clothing without cuffs. These clothes must be insulated, dry, fireproof and in good condition, and cover the whole body.

Wear protective gloves which guarantee electrical and thermal insulation.

Use sufficient welding protective gear for the whole body: hood, gloves, jacket, trousers... (varies depending on the application/operation). Protect the eyes during cleaning operations. Do not operate whilst wearing contact lenses.

It may be necessary to install fireproof welding curtains to protect the area against arc rays, weld spatters and sparks.

Inform the people around the working area to never look at the arc nor the molten metal, and to wear protective clothes.

Ensure ear protection is worn by the operator if the work exceeds the authorised noise limit (the same applies to any person in the welding area).

Stay away from moving parts (e.g. engine, fan...) with hands, hair, clothes etc...

Never remove the safety covers from the cooling unit when the machine is plugged in - The manufacturer is not responsible for any accident or injury that happens as a result of not following these safety precautions.

The pieces that have just been welded are hot and may cause burns when manipulated. During maintenance work on the torch or the electrode holder, you should make sure it's cold enough and wait at least 10 minutes before any intervention. The cooling unit must be on when using a water cooled torch in order to ensure that the liquid does not cause any burns.

ALWAYS ensure the working area is left as safe and secure as possible to prevent damage or accidents.

WELDING FUMES AND GAS

The fumes, gases and dust produced during welding are hazardous. It is mandatory to ensure adequate ventilation and/or extraction to keep fumes and gases away from the work area. An air fed helmet is recommended in cases of insufficient air supply in the workplace.

Check that the air intake is in compliance with safety standards.

Care must be taken when welding in small areas, and the operator will need supervision from a safe distance. Welding certain pieces of metal containing lead, cadmium, zinc, mercury or beryllium can be extremely toxic. The user will also need to degrease the workpiece before welding. Gas cylinders must be stored in an open or ventilated area. The cylinders must be in a vertical position secured to a support or trolley. Do not weld in areas where grease or paint are stored.

FIRE AND EXPLOSION RISKS

Protect the entire welding area. Compressed gas containers and other inflammable material must be moved to a minimum safe distance of 11 meters.

A fire extinguisher must be readily available.

Be careful of spatter and sparks, even through cracks. It can be the source of a fire or an explosion.

Keep people, flammable objects and containers under pressure at a safe distance.

Welding of sealed containers or closed pipes should not be undertaken, and if opened, the operator must remove any inflammable or explosive materials (oil, petrol, gas...).

Grinding operations should not be directed towards the device itself, the power supply or any flammable materials.

GAS BOTTLE

Gas leaking from the cylinder can lead to suffocation if present in high concentrations around the work area.

Transport must be done safely: Cylinders closed and product off. Always keep cylinders in an upright position securely chained to a fixed support or trolley.

Close the bottle after any welding operation. Be wary of temperature changes or exposure to sunlight.

Cylinders should be located away from areas where they may be struck or subjected to physical damage.

Always keep gas bottles at a safe distance from arc welding or cutting operations, and any source of heat, sparks or flames.

Be careful when opening the valve on the gas bottle, it is necessary to remove the tip of the valve and make sure the gas meets your welding requirements.

ELECTRIC SAFETY

The machine must be connected to an earthed electrical supply. Use the recommended fuse size.

An electrical discharge can directly or indirectly cause serious or deadly accidents.

Do not touch any live part of the machine (inside or outside) when it is plugged in (Torches, earth cable, cables, electrodes) because they are connected to the welding circuit.

Before opening the device, it is imperative to disconnect it from the mains and wait 2 minutes, so that all the capacitors are discharged.

Do not touch the torch or electrode holder and earth clamp at the same time.

Damaged cables and torches must be changed by a qualified and skilled professional. Make sure that the cable cross section is adequate with the usage (extensions and welding cables). Always wear dry clothes in good condition, in order to be insulated from the electrical circuit. Wear insulating shoes, regardless of the environment in which you work in.

EMC CLASSIFICATION

These Class A devices are not intended to be used on a residential site where the electric current is supplied by the public network, with a low voltage power supply. There may be potential difficulties in ensuring electromagnetic compatibility on these sites, because of the interferences, as well as radio frequencies.

• This equipment TIG 300 DC do not comply with IEC 61000-3-12 and is intended to be connected to private low-voltage systems interfacing with the public supply only at the medium- or high-voltage level. On a public low-voltage power grid, it is the responsibility of the installer or user of the device to ensure, by checking with the operator of the distribution network, which device can be connected.
• This equipment TIG 220 DC complies with the IEC 61000-3-12 standard.

This equipment TIG 220 DC complies with IEC 61000-3-11 if the power supply network's impedance at the electrical installation's connection point is inferior to the network's maximum admissible impedance Z_ = 0.29 Ohms.

ELECTROMAGNETIC INTERFERENCES

The electric currents flowing through a conductor cause electrical and magnetic fields (EMF). The welding current generates an EMF field around the welding circuit and the welding equipment.

The EMF fields may disrupt some medical implants, such as pacemakers. Protection measures should be taken for people wearing medical implants. For example, access restrictions for passers-by or an individual risk evaluation for the welders.

All welders should take the following precautions in order to minimise exposure to the electromagnetic fields (EMF) generated by the welding circuit::

• position the welding cables together – if possible, attach them;
• keep your head and torso as far as possible from the welding circuit;
• never enroll the cables around your body;
• never position your body between the welding cables. Hold both welding cables on the same side of your body;
• connect the earth clamp as close as possible to the area being welded;
• do not work too close to, do not lean and do not sit on the welding machine
• do not weld when you're carrying the welding machine or its wire feeder.

People wearing pacemakers are advised to consult their doctor before using this device.

Exposure to electromagnetic fields while welding may have other health effects which are not yet known.

RECOMMANDATIONS TO ASSES THE AREA AND WELDING INSTALLATION

Overview

The user is responsible for installing and using the arc welding equipment in accordance with the manufacturer's instructions. If electromagnetic disturbances are detected, it is the responsibility of the user of the arc welding equipment to resolve the situation with the manufacturer's technical assistance. In some cases, this remedial action may be as simple as earthing the welding circuit. In other cases, it may be necessary to construct an electromagnetic shield around the welding power source and around the entire piece by fitting input filters. In all cases, electromagnetic interferences must be reduced until they are no longer bothersome.

Welding area assessment

Before installing the machine, the user must evaluate the possible electromagnetic problems that may arise in the area where the installation is planned.

. In particular, it should consider the following:

a) the presence of other power cables (power supply cables, telephone cables, command cable, etc...) above, below and on the sides of the arc welding machine.

b) television transmitters and receivers ;

c) computers and other hardware;

d) critical safety equipment such as industrial machine protections;

e) the health and safety of the people in the area such as people with pacemakers or hearing aids;

f) calibration and measuring equipment

g) The isolation of the equipment from other machinery.

The user will have to make sure that the devices and equipments that are in the same room are compatible with each other. This may require extra precautions;

h) make sure of the exact hour when the welding and/or other operations will take place.

The surface of the area to be considered around the device depends on the building's structure and other activities that take place there. The area taken in consideration can be larger than the limits determined by the companies.

Welding area assessment

Besides the welding area, the assessment of the arc welding systems installation itself can be used to identify and resolve cases of disturbances. The assessment of emissions must include in situ measurements as specified in Article 10 of CISPR 11. In situ measurements can also be used to confirm the effectiveness of mitigation measures.

RECOMMENDATION ON METHODS OF ELECTROMAGNETIC EMISSIONS REDUCTION

a. National power grid: The arc welding machine must be connected to the national power grid in accordance with the manufacturer's recommendation. If interferences occur, it may be necessary to take additional preventive measures such as the filtering of the power supply network. Consideration should be given to shielding the power supply cable in a metal conduit. It is necessary to ensure the shielding's electrical continuity along the cable's entire length. The shielding should be connected to the welding current's source to ensure good electrical contact between the conduct and the casing of the welding current source..

b. Maintenance of the arc welding equipment: The arc welding machine should be submitted to a routine maintenance check according to the manufacturer's recommendations. All accesses, service doors and covers should be closed and properly locked when the arc welding equipment is on.. The arc welding equipment must not be modified in any way, except for the changes and settings outlined in the manufacturer's instructions. The spark gap of the arc start and arc stabilization devices must be adjusted and maintained according to the manufacturer's recommendations.

c. Welding cables: Cables must be as short as possible, close to each other and close to the ground, if not on the ground.

d. Electrical bonding : consideration should be given to bonding all metal objects in the surrounding area. However, metal objects connected to the workpiece increase the risk of electric shock if the operator touches both these metal elements and the electrode. It is necessary to insulate the operator from such metal objects.

e. Earthing of the welded part: When the part is not earthed - due to electrical safety reasons or because of its size and its location (which is the case with ship hulls or metallic building structures), the earthing of the part can, in some cases but not systematically, reduce emissions. It is preferable to avoid the earthing of parts that could increase the risk of injury to the users or damage other electrical equipment. If necessary, it is appropriate that the earthing of the part is done directly, but in some countries that do not allow such a direct connection, it is appropriate that the connection is made with a capacitor selected according to national regulations.

f. Protection and plating : The selective protection and plating of other cables and devices in the area can reduce perturbation issues. The protection of the entire welding area can be considered for specific situations.

TRANSPORT AND TRANSIT OF THE WELDING MACHINE

The machine is fitted with handle to facilitate transportation. Be careful not to underestimate the machine's weight. The handle(s) cannot be used for slinging.

Do not use the cables or torch to move the machine. The welding equipment must be moved in an upright position.

Never lift the machine while there is a gas cylinder on the support shelf. A clear path is available when moving the item. Do not place/carry the unit over people or objects.

EQUIPMENT INSTALLATION

• Put the machine on the floor (maximum incline of 10^ ).
• Ensure the work area has sufficient ventilation for welding, and that there is easy access to the control panel.
• The machine must not be used in an area with conductive metal dusts.
• The machine must be placed in a sheltered area away from rain or direct sunlight.
  • The machine protection level is IP21, which means :
• Protection against access to dangerous parts from solid bodies of a ≥12.5mm diameter and,
• Protection against vertically falling drops.
• The machine protection level is IP23, which means :
• Protection against access to dangerous parts from solid bodies of a ≥12.5mm diameter and,
• Protection against the rain inclined at 60% towards the vertical.
  These devices can be used outside in accordance with the IP23 protection index.
  The power cables, extensions and welding cables must be fully uncoiled to prevent overheating.

The manufacturer does not incur any responsibility regarding damages to both objects and persons that result from an incorrect and/or dangerous use of the machine.

MAINTENANCE / RECOMMENDATIONS

- Maintenance should only be carried out by a qualified person. Annual maintenance is recommended.

- Ensure the machine is unplugged from the mains, and wait for two minutes before carrying out maintenance work. DANGER

High Voltage and Currents inside the machine.

• Remove the casing 2 or 3 times a year to remove any excess dust. Take this opportunity to have the electrical connections checked by a qualified person, with an insulated tool.
• Regularly check the condition of the power supply cable. If the power cable is damaged, it must be replaced by the manufacturer, its after sales service or an equally qualified person.
• Ensure the ventilation holes of the device are not blocked to allow adequate air circulation.
• Do not use this equipment to thaw pipes, to charge batteries, or to start any engine.

INSTALLATION – PRODUCT OPERATION

Only qualified personnel authorized by the manufacturer should perform the installation of the welding equipment. During set up, the operator must ensure that the machine is unplugged. Connecting generators in a series or a parallel circuit is forbidden.

HARDWARE DESCRIPTION (FIG-1)

These TIGs are inverter welding power sources for direct current (DC) refractory electrode welding (TIG) and shielded metal arc welding (MMA). The TIG process requires gas shielding (Argon).

The MMA process can weld any type of electrode: rutile, basic, stainless steel and cast iron.

These TIGs can be equipped with a manual remote control (ref. 045675) or a foot pedal (ref. 045682).

The TIG 300 DC can be equipped with an automatic command (CONNECT-5).

1- Keyboard + buttons 5- Trigger connection
2- + polarity plug 6- Remote control connection
3- - polarity plug 7- ON / OFF switch
4- Gas connection for torch 8- Power supply cable

9- Gas inlet

CONTROL BOARD (IHM) (FIG-2)

1- Process section 5- Thermal protection indicator
2- Trigger mode selection 6- Display and options
3- Process options selection 7- Sleep button
4- Welding parameters settings.

POWER SUPPLY – STARTING UP

• The TIG 300 DC is supplied with a 5-pole (3P+N+PE) 400V 16A three-phase plug of type EN 60309-1 and is supplied from a 400V (50 - 60 Hz) three-phase electrical installation WITH earth. This equipment must only be used on a three-phase four-wire power system with the neutral connected to earth. The TIG 220 DC is delivered with a single-phase 3-pole (P+N+PE) 230V 16A CEE17 plug, is equipped with a «Flexible Voltage» system and is supplied on an electrical installation with earth between 110V and 240V (50 - 60 Hz).
  The effective absorbed current (I1eff) is indicated on the welding current source and for the maximum operating conditions. Check that the power supply and its protection (fuse and/or circuit breaker) are compatible with the current required in use. In some countries, it may be necessary to change the plug to allow use at maximum conditions. The user must ensure that the plug is accessible.
• The welding current source goes into protection if the supply voltage is less than or greater than 15% of the specified voltage(s) (a fault code will appear on the keyboard display).
• The TIG 300 DC is switched on by turning the on/off switch (7) to position I, conversely, it is switched off by turning to position O. The TIG 220 DC is switched on by pressing the standby button. Caution! Never switch off the power supply when the welding current source is under load.
• Fan behaviour: In MMA mode, the fan runs continuously. In TIG mode, the fan runs only during the welding phase and then stops after cooling
• Warning: Increasing the length of the torch or return cables beyond the maximum length specified by the manufacturer will increase the risk of electric shock.

CONNECTION ON A GENERATOR

The machine can work with generators as logn as the auxiliary power matches these requirements :

- The voltage must be AC, always superior to 400Vac ±15%, and the peak voltage below 700V,

- The frequency must be between 50 and 60 Hz.

It is imperative to check these requirements as several generators generate high voltage peaks that can damage these machines.

USE WITH EXTENSION CABLES

All extension cables must have an adequate size and section, relative to the machine's voltage. Use an extension that complies with national safety regulations.

	Current input	Length - Extension selection
		< 45m < 100m
TIG 300 DC 400V 2.5 mm ^2
TIG 220 DC	230V 2.5 mm ^2
	110V 2.5 mm ^2	4 mm ^2

SYMBOLS & MENUS

FUNCTION PICTOGRAM		TIG DC	MMA	Comment
HF ignition X TIG process with HF ignition HF
Lift ignition X TIG process with LIFT ignitionT
Pre-gas X Time to purge the t		t the area	with gas	before ignition
Up slope current X Up slope current I
Welding current X Welding current I
Courant froid	% I	X		Second welding current or «cold» current in standard 4TLOG or in PULSE mode
PULSE Frequency	F(Hz)	X	X	PULSATION frequency of the PULSE mode (Hz)
Down slope current		X		Down slope current to minimum current, I Stop (S) to prevent weld defects and craters.
Post gas		X		Length of time in which gas is released after the arc has stopped. It protects the weld pool and the electrode against oxidization when the metal is cooling (S).
HotStart			X	Adjustable overcurrent at the beginning of the welding (%)
ArcForce			X	Overcurrent delivered to avoid sticking when the electrode enters the welding pool
TIG PULSE X Pulse mode
TIG SPOT	-	X Spot mode
MMA PULSE			X	MMA process in PULSE mode
2T		X 2 time torch mode
4T		X 4 time torch mode
4T LOG X 4 time LOG torch mode
Ampere (unit)		X	X	Amperes unit for welding current settings
Volt (unit)		X	X	Volt unit for displaying welding voltage
Second or Hertz (units)		X	X	Seconds or Hertz unit for time or frequency settings
Percentage (unit)		X	X	Percentages unit for proportionate settings
Display switch A or V	A/V	X	X	Switches the display of voltage or current during and after welding

Program menu access X X Access to configuration	menu (SAVE, JOB, ...)
Thermal protection X X Standard symbol to indicate the thermal protection state
Sleep mode X X Sleep mode

ELECTRODE WELDING (MMA)

CONNECTIONS AND RECOMMENDATIONS

• Connect the cables, electrode holder and earth clamp in the connectors,
• Respect the welding polarities and intensities indicated on the electrodes boxes,
• Remove the electrode from the electrode holder when the machin is not in use.

888 A V S / Hz % A V JOB INVERTER WELDER TIG - HF TIG - LIFT MMA 21° 45° 89 Hz - + MMA Pulse (Fire)

MMA (MMA PULSE)
The grey areas are not useful for this mode.

Adjustable values 0 - 100% 0 - 100%

TIG WELDING WITH INERT GAS (TIG MODE)

CONNECTIONS AND RECOMMENDATIONS

Connect the earth clamp to the positive connector (+).

Connect the torch to the negative plug (−), the trigger cable and the gas hose.

Ensure that the torch is equipped and ready to weld, and that the consummables (Vise grip, ceramic gas nozzle, collet and collet body) are not damaged.

TIG WELDING PROCESSES

888 A V S/Hz % A V JOB 10s 20s TIG-HF 2T TIG-LIFT 4T MMA 4TLOG %I - + Pulse 5960 %I Spot

TIG
The grey areas are not useful for this mode.

888 A V S / Hz % A V JOB INVERTER WELDER 10s 20s TIG - HF 2T TIG - LIFT 4T MMA Pulse Split %1 Spot ATTG - %1 MMA Pulse

TIG PULSE
The grey areas are not useful for this mode.

• TIG DC

This welding mode in direct current (DC) is designed for ferrous metal such as steel, stainless steel or even copper and its alloys.

• TIG DC Pulsed

This pulse welding mode chains high current pulses (I, welding pulse) then low current pulses (I_cold, pulses to cool the piece). This pulse mode allows to assemble pieces while limiting high temperatures.

Example :

The I welding current is set to a 100A and % (I_cold) = 50%, thus a Cold current of = 50% x 100A = 50A. F(Hz) is set to 10Hz, the signal period will be 1/10Hz = 100ms.

Every 100ms, a 100A pulse then a 50A pulse will succeed each other.

The choice of frequency

- If welding with TIG electrodes, then F(Hz) synchronised to the gesture,

- If thin plate without TIG electrodes (< 8/10 mm), F(Hz) >> 10Hz

- If special metal requiring a welding pool sweep for degasing, then F(Hz) >> 100Hz

• Tack weld feature SPOT

888 A V S/Hz % A V JOB TIG-HF 2T TIG-LIFT MMA Spot INVERTER WELDER

TIG SPOT
The grey areas are not useful for this mode.

• TIG DC - Advanced menu

The Start and Stop stages of the welding cycle can be set.

graph TD
    A["Start"] --> B["Step 1"]
    B --> C["Step 2"]
    C --> D["Stop"]
    D --> E["Step 3"]
    E --> F["Stop"]

To access these advanced parameters, press and hold the «JOB» button for more than 3 seconds until SET and then UP are displayed continuously. Once the button is released, in the drop-down menu, go to «SET» using the central wheel and validate by pressing the «JOB» button.

By scrolling the wheel, the following advanced settings can be accessed:

Parameter Description Setting
I_Start step current at welding start 10% - 200%
T_Start time of the welding start stage 0s - 10s
I_Stop stop welding stage current 10% - 100%
T_Stop time of welding stop stage 0s - 10s

The parameter to be modified is selected by pressing the «JOB» button. Once the modification has been made with the central wheel (I), it is validated by pressing the «JOB» button.

The exit of the advanced menu is done by validation «ESC».

SELECT STRIKING MODE

HF TIG: High Frequency start without contact

TIG LIFT : Contact start (for environments sensitive to HF disturbances).

Touch Switch Lift Pré Gaz 0.5s <1s

1- Touch the work-piece with the electrode
2- Press the trigger on the torch
3- Pull back the torch to lift the electrode.

√	√	√

TORCHES AND TRIGGER MODES

For the 1 button torch, the button is called «main button».

For the 2 buttons torch, the first button is called «main button» and the second button is called «secondary button».

2T MODE

Main button T1 T2

4T MODE

graph TD
    A["Main button T1"] --> B["T2"]
    B --> C["T3"]
    C --> D["T4"]
    style A fill:#f9f,stroke:#333
    style B fill:#ccf,stroke:#333
    style C fill:#cfc,stroke:#333
    style D fill:#fcc,stroke:#333

T1 - The main button is pressed, the welding cycle starts (PreGas, I_Start, UpSlope and welding).
T2 - The main button is released, the welding cycle is stopped (DownSlope, I_Stop, PostGas).

For the double button torch and in 2T mode only, the secondary button works like the main button.

T1 - The main button is pressed, the cycle starts at PreGas and stops in the I_Start phase.
T2 - The main button is released, the cycle continues in UpSlope and in welding.
T3 - The main button is pressed, the cycle switches to DownSlope and stops in I_Stop.
T4 - The main button is released, the cycle ends with PostGas.

Nb : for torches, double button and double button with potentiometer => command « up/welding current » and active potentiometer, command «low » inactive.

4T MODE log

Main button or Secondary button T1 T2 T3 T4 t ≥0.5s<0.5s<0.5s

T1 - The main button is pressed, the cycle starts at PreGas and stops in the I Start phase.
T2 - The main button is released, the cycle continues in UpSlope and in welding.

LOG: this mode is used during welding :

• A brief press of the main button (<0.5s), the current switches from I welding current to I cold and vice versa.
• the secondary button is kept pressed, the weldin current switches from I welding current to I cold
• the secondary button is kept released, the current switched from I cold to I welding current.
  T3 - A long press on the main button (>0.5s), the cycle switches to DownSlope and stops in the I_Stop phase.
  T4 - The main button is released, the cycle finishes with PostGas.

For this mode it may be convenient to use the dual button torch option or dual button with potentiometer. The «up» command keeps the same function as the single button or trigger torch. The «down» button can, when pressed, switch to the cold current. The potentiometer of the torch, where available, allows control of the welding current from 50% to 100% of the value displayed.

RECOMMENDED COMBINATIONS

Process Type HF Lift
TIG DC	STD	√	√
	PULSE	√	√
	SPOT -	√

MMA	STD
	PULSE

DC		Current (A) Electrode (mm) Shroud (mm)		Argon flow rate (L/min)
	0.3 - 3 mm 5 - 75	1 6.5 6 - 7
	2.4 - 6 mm 60 - 1	50 1.6 8 6 - 7
	4 - 8 mm 100 - 2	200 2 9.5 7 - 8
	6.8 - 8.8 mm 170 -	250 2.4 11 8 - 9
	9 - 12 mm 225 - 3	300 3.2 12.5	9 - 10

ELECTRODE GRINDING

To optimise the welding process, it is recommended to grind the electrode prior to welding as described below:

d L

L = 3 x d for a low current.

L = 3 x d for a high current

SAVE AND LOAD WELDING SETTINGS

There are 10 memories in MMA and 10 in DC TIG.

Menu is accessed with the «JOB» button.

Save settings

Once in program mode, select IN and press the access button.

Slect a program from P1 to P10. Press the access button and the current setting is saved.

Load an existing setting

Once in program mode, select OUT and press the access button.

Slect a program from P1 to P10. Press the access button and the setting is loaded.

COMMAND TRIGGER CONNECTOR

P L DB 1 5 2 4 2 3 P torch L torch DB torch

4 3 5 2 6 1 NC

3 DB torch 4 L torch 2 2 5 DB + P torch 1

Cabling diagram for the SRL18 torch.
Electric diagram according to torch type.

Torch type			Wire description	Pin
Torch 2 triggers + poten- tiometer	Torch 2 triggers Torch 1	trigger	Common/Earth	2 (green)
			Switch trigger 1	4 (white)
			Switch trigger 2	3 (brown)
			Common/Potentio- meter earth	2 (grey)
			5 V	1 (yellow)
			Cursor	5 (pink)

REMOTE CONTROL

The remote control operates in TIG mode and in MMA.

D 045682 C B A 045675

ref. 045699 External view Electric diagram according to remote control type.

Connection

1- Plug the remote control into the connection at the back of the machine.
2- The machine will detect automatically the remote control and open a selection menu:

Foot pedal selection.

Remote control with potentiometer selection.

CONNECT-5 (automate-robot) selection.

Remote control is connected but inactive.

Connection

The material is equipped with a female socket for a remote control.

The specific 7 pin male plug (option ref. 045699) enables connection to the different types of manual remote control or foot pedal. For the cabling layout, please see the diagram below.

REMOTE CONTROL TYPE Wire description Pin
CONNECT-5	Foot pedal Manual	remote control	10V A
			Cursor B
			Common/Earth C
			Switch D
			AUTO-DETECT E
			ARC ON F
			REG I G

Operating :

- Manual remote control (option ref. 045675):

The remote control enables the variation of current from 50% to 100% of the set intensity. In this configuration, all modes and functions of the machine are accessible and can be set.

• Pedal (option ref. 045682):

The pedal control enables variation of the current from the minimum set current to a 100% of the set intensity.

In TIG mode, the machine will only operate in two-stage welding (2T mode). The upslope and downslope are not automatic, and are controlled by the User with the foot pedal.

- Connect 5 - automaton mode (TIG 300 DC only) :

This mode enables to pilot the TIG 300 DC from a console or from an automaton due to 5 pre-saved programs.

As the foot pedal, the «Switch (D)» enables to start or stop welding according to the chosen cycle. The voltage value for the «slider (B)» matches a program or the actual statut.

This voltage must be between 0 and 10V (step of 1.6V) which is linked to a program reminder:

- Actual status : 0 - 1.6 V

- Program 1 : 1.7 - 3.3 V

- Program 2 : 3.4 - 5.0 V

- Program 3 : 5.1 - 6.6 V

- Program 4 : 6.7 - 8.3 V

- Program 5 : 8.4 - 10.0 V

An additional potentiometer enables to change the current (+/- 15%) either whilst welding or not. The information ARC ON (arc presence) enables the automaton to synchronise itself (Pull Up 100kΩ entry, automaton side). Put the pin AUTO_DETECT to the earth enables to start the product without going through the window where you can select the type of remote control used.

The 5 programs loaded correspond to the frist 5 saved programs (P1 to P5).

COOLING UNIT (OPTION)

TIG 220 DC
WCU0.5kW_A	P 1L/min = 500WCapacity = 1.5 LU1 = 185V - 265V	When working within the 185V-265V power supply range, the cooling unit is controlled by the welding machine,When working within the 85V-185V power supply range, the cooling unit is always switched off.
WCU1kW_A	P 1L/min = 1000WCapacity = 3 LU1 = 85V - 265V	The cooling unit is controlled by the welding machine throughout the 85V-265V power supply range.
TIG 300 DC
WCU1kW_B	P 1L/min = 1000WCapacity = 3 LU1 = 400V +/- 15%	The cooling unit is controlled by the welding machine throughout the power supply range.

This machine may be connected to a cooling system for the cooling of the water torch. In the OPTION menu, this cooling unit system can be deactivated.

A 3 second press on the «JOB» button allows access to the cooling unit system menu.

Make sure that the cooling unit is turned off before disconnecting the inlet and outlet hoses for torch liquid.

The coolant is harmful and irritates the eyesm the mucus membranes and the skin. Hot liquid may cause burns.

TROUBLESHOOTING

This device integrates a default management system.

A series of messages displayed on the control board allows for a fault and anomalies diagnosis.

ANOMALIES AND MMI DISPLAY	CAUSES SOLUTIONS
WELDING MACHINE
« dEF » « 1 » Communication error		Check the internal cabling between the MMI and the PCB.
« dEF » « 2 » Faulty MMI buttons Replace the MMI.
« dEF » « 3 »	Faulty torch(es) trigger(s) / button(s)	Replace the torch.
« dEF » « 4 » Foot pedal switch always active or faulty		Replace the pedal and check that the switch is not stuck.
« E r r » « Co.5 »	In automaton mode, a command default is detected.	Check the automaton's cabling.
« --- »	An overvoltage was detected on the electrical distribution network.	A power surge is the origin of the message and originates from a motor overload, lightning...
« P h »	1 phase missing from the three phase network.	The installation must be three phase (3P+N+E)
« d E »	A voltage unbalance was detected on the electrical distribution network.	Call your supplier.
WELDING MACHINE + COOLING UNIT
« Pb.1 » Cooling unit detection default.		Check the connectors between the welding current source.
« Pb.2 » Cooling liquid supply default. Fill the cooling unit's tank.
« Pb.3 » Cooling liquid flow default.		Check the liquid flow's between the unit and the torch.

WARRANTY

The warranty covers faulty workmanship for 2 years from the date of purchase (parts and labour).

The warranty does not cover:

• Transit damage.
• Normal wear of parts (eg. : cables, clamps, etc..).
• Damages due to misuse (power supply error, dropping of equipment, disassembling).
• Environment related failures (pollution, rust, dust).

In case of failure, return the unit to your distributor together with:

• The proof of purchase (receipt etc ...)
• A description of the fault reported

888 A V S/Hz % A V JOB INVERTER WELDER TIG - HF TIG - LIFT MMA - + MMA Pulse Wire

E-HAND (MMA PULSE)

888 A V 5/Hz % A V JOB 10s 20s TIG-HF 2T TIG-LIFT 4T MMA 4T/OG %I - + Pulse 3960% I Spot

888 A V S/Hz % A V JOB 10s 20s TIG - HF 2T TIG - LIFT 4T MMA Pulse 23% 1% Spot MMA Pull

888 A V S/Hz % A V JOB TIG-HF 2T TIG-LIFT 41 MMA Spot MMA Pulse INVERTER WELDER

P DB L 1 5 2 4 2 3 L torch DB torch NC 4 3 5 2 6 1 DB torch L torch 2 3 4 2 5 1 DB + P torch

- Connect 5 - Automatikmodus (nur WIG 300 DC):

888 A V S/Hz % A V INVERTER WELDER % I LA TIG - HF TIG - LIFT MMA ATLDO - HL + Pulse 100% Spot MMA Pulse FING

888 A V S/Hz % A V JOB 10s 20s TIG - HF 2T TIG - LIFT 4T MMA 4T/OG %T Pulse (590%) Spot

INVERTER WELDER 888 A V S /Hz % A V JOB 10r 20r TIG - HF 2T TIG - LIFT 4T MMA ATG - 11 Pulse 3.90 % Spot MMA Pulse

888 A V S/Hz % A V JOB TIG - HF 2T TIG - LIFT MMA Spot MMA Pulse

Bouton principal T1 T2

P L DB 1 5 2 4 2 3 P torch L torch DB torch

4 3 5 2 6 1 NC

DB torch L torch 2 3 4 2 5 1 DB + P torch

888 A V S/Hz % A V JOB INVERTER WELDER TIG - HF TIG - LIFT MMA - + MMA Pulse (pH) I II III

MMA (MMA PULSE)

888 A V S/Hz % A V JOB 10s 20s 0s I TIG-HF 2T TIG-LIFT 4T MMA 4TLOG %I + Pulse Formo %I Spot

INVERTER WELDER 8 8 8 A V S/Hz % A V JOB I % I 10s 20s TIG - HF 2T TIG - LIFT 4T MMA Pulse (50%) % Spot Mixer Pulse

888 A V S/Hz % A V JOB TIG-HF 2T TIG-LIFT 4T MMA Spot MAX/Min/Max/Min

DB P L 1 5 2 4 2 3 L torch DB torch NC 4 3 5 2 6 1 DB torch L torch 3 4 2 2 5 1 DB + P torch

WAARSCHUWING - VEILIGHEIDSINSTRUCTIES

ALGEMENE INSTRUCTIES

INTERFACE HUMANE MACHINE (IHM) (FIG-2)

LASSEN MET BEKLEDE ELEKTRODE (MODE MMA)

AANSLUITING EN ADVIEZEN

888 A V S/Hz % A V JOB INVERTER WELDER TIG - HF TIG - LIFT MMA - + MMA Pulse FWD

888 A V S/Hz % A V JOB 10s 20s TIG - HF 2T TIG - LIFT 4T MMA 4T/OG %T Pulse (5900 %) Spot

INVERTER WELDER 888 A V S/Hz % A V JOB 10s 20s TIG - HF 2T TIG - LIFT 4T MMA AT (On, n-1) Pulse 2(Sh) %1 Spot Mixer Pulse

888 A V S / Hz % A V JOB TIG - HF 2T TIG - LIFT MMA Spot INVERTER WELDER

Bouton principal T1 T2

P DB L 1 5 2 4 2 3 L torch P torch DB torch NC 4 3 5 2 6 1 DB torch L torch 2 3 4 2 5 1 DB + P torch

- Connect 5 - PLC modus (alleen TIG 300 DC):

SALDATURA AD ELETTRODO RIVESTITO (MODALITÀ MMA)

COLLEGAMENTO E CONSIGLI

I PROCESSI DI SALDATURA TIG

INVERTER WELDER 888 A V 5/Hz % A V JOB 10s 20s I TIG - HF 2T TIG - LIFT 4T MMA 4TLOG %I - + Spot Pulse 1000 % I

INVERTER WELDER 888 A V 5/Hz % A V JOB 10s 20s F### 0s TIG-HF 2T TIG-LIFT 4T MMA Pulse Rate %1 Spot MMA Rate 202

Bouton principal T1 T2

P L DB 1 5 2 P torch 4 2 L torch 3 DB torch 4 3 5 2 6 1 ● NC

3 DB torch 4 L torch 2 2 5 1 DB + P torch