GYS 250T-C Multiweld MMA Welding Machine Instruction Manual

GYS 250T-C Multiweld MMA Welding Machine

GENERAL INSTRUCTIONS

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 due to non-compliance with the instructions featured in this manual.
In the event of problems or uncertainty, please consult a qualified person to handle the inspection 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 inadequate 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 authorized 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 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 EXPLOSIONS 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.

MULTIWELD 250T-C / 320T-C / FV 220M-C :
This equipment complies with the IEC 61000-3-11 standard.

MULTIWELD 250T-C / 320T-C / FV 220M-C :
This equipment does 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.

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 minimize 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:

1. 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.

2. television transmitters and receivers ;

3. computers and other hardware;

4. critical safety equipment such as industrial machine protections;

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

6. calibration and measuring equipment

7. 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;

8. 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 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

1. 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.
2. Maintenance of the arc welding equipment : The arc welding machine should be 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.
3. Welding cables : Cables must be as short as possible, close to each other and close to the ground, if not on the ground.
4. 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.
5. 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.
6. 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 equipped with two handles to facilitate transport, which requires two people.
Be careful not to underestimate the weight of the machine.

Do not use the cables or torch to move the machine. The welding equipment must be moved in an upright position. Do not place/carry the unit over people or objects.
Never lift the machine while there is a gas cylinder on the support shelf. A clear path is available when moving the item. The removal of the wire reel from the machine is recommended before undertaking any lifting operation.

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 MULTIWELD 250T-C 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 MULTIWELD 320T-C/220M-C 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.

Stray welding currents/voltages may destroy earth conductors, damage electrical equipment or cause components to warm up which may cause a fire.

• All welding connections must be firmly secured, check regularly !
• Check that the metal piece fixation is strong and without any electrical problems !
• Attach or hang all the electrically conductive elements, such as the trolley in order to insulate them.
• Do not place any electrical equipment such as drills on top of the welding machine without insulating them !
• Always place welding torches or electrodes holders on an insulated surface when they’re not in use !

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 cutting equipment. During set up, the operator must ensure that the machine is unplugged. Connecting generators in a series or a parallel circuit is forbidden.
It is recommended to use the welding cables supplied with the unit in order to obtain the optimum product settings.

DESCRIPTION

Thank you for choosing this machine. To get the best use from your machine, please read the following carefully :
The MULTIWELD range are semi-automatic MIG/MAG, MMA and flux cored wire welding stations. They are manual settings ma-chine, with the help of the table printed on the product. They are recommended for welding steel, stainless steel and aluminum.

POWER SUPPLY

• The MULTIWELD 250T-C/320T-C is fitted with a 16A socket type EN 60309-1 which must be connected to a three-phase 400V (50 – 60 Hz) power supply fitted with four wires and one earthed neutral.

• The MULTIWELD FV 220M-C is supplied with a 16 A CEE7/7 plug and may only be used in a single-phase 230 V (50 – 60 Hz) three-wire electrical installation with a grounded neutral conductor.
  This product, equipped with a «Flexible Voltage» system, can be used on an earthed electrical installation between 110V and 230V (50 – 60Hz).
  The absorbed effective current (I1eff) is displayed on the machine, for optimal use. Check that the power supply and its protection (fuse and/or circuit breaker) are compatible with the current needed by the machine. In some countries, it may be necessary to change the plug to allow the use at maximum settings.

• The MULTIWELD FV 220M-C is equipped with the Protect 400 function (P400): the device switches to protection (protection light flashes) if the supply voltage is higher than 265V. Normal operation resumes as soon as the supply voltage returns to its nominal range.

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.

| Input voltage| Wire section of extension cord (<45m)
---|---|---
MULTIWELD 250T-C/320T- C| 400 V – 3~| 2.5 mm²
MULTIWELD FV 220M-C| 230 V – 1~| 2.5 mm²
110 V – 1~

DEVICE PRESENTATION (FIG. I)

1. Reel support
2. Handles
3. Digital displays
4. Adjustment of welding settings
5. European standard torch connection
6. Polarity reversal cable
7. Earth clamp connector
8. Lifting eyes
9. Gas connector
10. On/off switch
11. Power supply cable
12. External grill
13. Plug 36V DC for gas preheater

CONTROL BOARD MMI (FIG. V)

1. Overheat/Overcurrent indicator (250T-C/320T-C) Overheat/Overcurrent indicator/P400 (FV 220M-C)
2. Voltage display
3. Current and wire speed display
4. Current indicator
5. Wire speed indicator
6. MMA function indicator
7. MIG function indicator
8. 2T/4T function switch button
9. MIG/MMA switch button
10. Welding arc dynamic adjustment
11. Wire speed adjustment (MIG) / current setting adjustment (MMA)
12. Voltage setting adjustment

SWITCHING ON
The ON/OFF switch is located at the back of the machine.
Turn the switch on the «I» position to start the generator. This switch must not be turned off (to «O») while welding.

SEMI-AUTOMATIC FOR STEEL/STAINLESS STEEL (MAG MODE)

Set the voltage output and the wire speed according to the thickness of the weld piece, following the instructions/ recommendations printed on the front of the machine (fig. VI).
The MULTIWELD 250T-C/320T-C can weld Steel wire 0.6/1.2 mm, and Stainless Steel of 0.8/1.2 mm.
The MULTIWELD FV 220M-C can weld Steel wire 0.6/1.0 mm, and Stainless Steel of 0.8/1.0 mm.
The products are fitted to work with 0.8 mm steel wire (roller Ø 0.8/1.0). The contact tube, the groove of the roller and the sleeve of the torch are all compatible with 0.8 mm wire. Should you wish to weld 0.6 wire, use a torch of maximum 3 m long. The contact tip must be changed (fig. II-A) as well as the wire feeder’s roller that must be replaced by an optional reference (042339) with a 0.6 diameter groove. In this case, the position in such a way to observe 0.6.
For use with Steel, the gas recommendation is argon + CO2. (Ar+CO2). The proportion of CO2 required will vary depending on the use. For Stainless Steel, use the combination of 2% CO2. If welding using pure CO2 protection gas, you should connect a gas preheater on the gas bottle (Gys reference 046511 for a 230 V version). You may also use a standard 36 V preheater module that can be connected to the 36V power supply plug located nearby the soldering wire reel behind the lateral door (fig. I-13). Note that this 36V DC power supply is also compatible with 36 V AC preheaters. For other specific gas requirements, please contact your gas distributor. The gas flow in steel is between 8 and 12 liters / minute depending on the environment.

SEMI-AUTOMATIC WELDING FOR ALUMINIUM (MIG MODE)

Set the voltage output and the wire speed according to the thickness of the weld piece, following the instructions/ recommendations printed on the front of the machine (fig. VI).
The MULTIWELD 250T-C/320T-C/FV 220M-C can be equipped to weld with aluminum wire Ø 0.8 and 1.0 mm (fig. II-B).
For use with aluminum, the gas requirement is pure argon (Ar). For the specific gas requirements please contact your distributor. The gas flow in Aluminum is between 15 and 25 Liters/minute depending on the environment, and the experience of the welder. Below are the differences between welding with Steel and Aluminum :

• Specific rollers are needed for welding with Aluminum.

• Adjust the pressure of the drive rolls to prevent the wire being crushed.

• Only use a capillary tube for welding with Steel or Stainless Steel.

• Use a special Aluminum Torch with a Teflon sheath to reduce friction.
  DO NOT cut the sheath close to the joint, it is used to guide the wire from the the rollers.

• Contact Tube : Use a special aluminum contact tube specific to the diameter of wire being used.

GASLESS WIRE WELDING

Set the voltage output and the wire speed according to the thickness of the weld piece, following the instructions/ recommendations printed on the front of the machine (fig VI).
The MULTIWELD 250T-C/320T-C/FV 220M-C can weld gasless wire to 0.9 to 1.2 mm, if the polarity is reversed (fig. III) respecting a maximum pressure of 5Nm. For parameters of use, please refer to the instructions indicated on page 68. Welding gasless wire with a standard nozzle can lead to overheating and deterioration of the torch. Remove the genuine nozzle (fig. III).

MIG / MAG SETTINGS PANEL

CONNECTION AND RECOMMENDATIONS

• Connect the earth clamp on the positive (+) or negative (-) terminal depending on the wire type (in general on the -).

MODE SELECTION AND SETTINGS
Press the left button   to select MIG/MAG welding and press the right button to choose the trigger modes : 2T or 4T (trigger  modes only available on MIG Mode).

1. Setting the welding voltage :
   Adjust the welding voltage using the voltage setting knob depending on the work to be carried out. The voltage setpoint is indicated on the left side display.

2. Setting the wire speed :
   Adjust the wire speed using the central knob depending on the work to be carried out. The speed setpoint is indicated on the central side display.

3. Inductance settings :
   Adjust the inductance level using the inductance setting knob , a relative value from MIN to MAX. The lower the inductance level, the harder and more guiding the arc. The higher the inductance and the softer the arc with little splatter.

Set the voltage output and the wire speed according to the thickness of the weld piece, following the instructions recommendations printed on the front of the machine (fig VI).

REEL AND TORCH ASSEMBLY (FIG. IV)

This product takes Ø 200/300 mm wire reel (ecological)

• Remove the contact tube and its support (fig. D), and the nozzle (fig. E) from the torch.

Fig A :

• Open the door of the machine.
• Place the reel on the drive pin (3) of the reel support.
• Adjust the reel brake (4) to avoid reel movement tangling the wire when the welding stops. Be careful not to tighten too much – the reel must rotate without straining the motor.

Fig B :

• The rollers supplied are double groove steel rollers (0.8 and 1.0).
  • Use V-grooved rollers for steel and other hard wires.
  • Use U-grooved rollers for aluminum and other soft, alloyed wires.

Fig C :
To select the adjustment of the drive rollers.

• Loosen the drive roller knob (3) as far as possible and insert the wire, tighten the knob again slightly.

• Start the motor by pressing the trigger of the torch.

• Tighten the knob whilst pressing the trigger until the wire starts to move.
  ATTENTION: When welding with Aluminums, use the minimum possible pressure to avoid crushing the wire.

• Leave about 5cm of wire out of the torch, then put the contact tube (fig. D), and the nozzle (fig. E) adapted to the wire to be used at the extremity.

GAS CONNECTION

• Connect the manometer (flowmeter) to the gas bottle if needed, then connect the gas hose to the gas connector. To avoid gas leak, use collars supplied in the accessories box.
• Set the gas flow by adjusting the dial located on the pressure regulator.

NB : to help facilitate the adjustment of the gas flow, operate the drive rollers by pressing the trigger of the torch (ensure that the drive roller is completely loose so the wire is not fed through).
`Maximum gas pressure 0.5 MPa (5 bars). This procedure does not apply to «Gasless» welding mode.

RISK OF INJURY DUE TO MOVING PARTS

The wire feeders contain moving parts that may catch hand, hair, clothes or tools which can lead to injuries! Take extra care.

• Do not lay a hand to swivel or moving components or parts to the drive!
• Ensure that the housing covers or protective covers remain closed during operation!
• Do not wear gloves when feeding the wire through or changing reel.

MMA SETTINGS PANEL

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 machine is not in use.

MODE SELECTION AND SETTING

Press the left button    to select MMA welding.

Setting the welding current :
Adjust the welding current using the central knob depending on the work to be carried out.
The current setpoint is indicated on the central side display.

WELDING CURRENT SETTINGS
The following settings concern the current range that may be used depending on the electrode’s type and diameter.
These ranges are quite large as they depend on the application and the welding position.

ELECTRODE WELDING

• The reverse polarity cable must be disconnected in MMA (stick welding) mode in order to connect the electrode holder and earth clamp. Connect the electrode holder and earth clamp as indicated on the electrode packaging.
• Respect the basic rules of welding.
• This device has 1 feature specific to Inverter machines :
  • Anti-Sticking: Enables easy removal of the electrode from the metal. The anti-sticking feature, after its start, requires approximately a 3 seconds delay before resuming normal welding operations.

PROTECTION AND RECOMMENDATIONS

1. Overheating:
   This unit is equipped with a ventilation system regulated by the temperature of the device. When the unit switches to thermal protection, it no longer delivers any current. The orange LED (fig. VI-1) lights up until the temperature of the unit has returned to normal.

   • Ensure the ventilation holes of the unit are not blocked to allow adequate air circulation.
   • Leave the unit switched on after welding and during thermal protection to allow cooling.

2. Overcurrent:
   This unit is equipped with a primary current measurement. In case of overcurrent, the orange LED (fig. VI-1) lights up. In this case the unit must be switched off and restarted.

3. P400 (FV 220M-C only) :
   This unit is equipped with primary overvoltage protection. In this case, the orange LED (fig. VI-1) will flash once per second.

4. Observations:

   • Respect the basic rules of welding.
   • Ensure that there is sufficient ventilation.
   • Do not work on a damp surface. To prevent gas leaks, use the clamps supplied in the accessory box.
   • Make sure that the gas cylinder is held in place with the fixing collar, see fig. V.
   • Set the gas flow rate by adjusting the control dial on the pressure regulator.

TROUBLESHOOTING

resuming welding operations.
Observe the operating factor and ensure good ventilation
The protection LED flashes (MULTIWELD FV 220M-C only)| Mains voltage outside maximum tolerance| Have your electrical installation checked by a qualified person.
The welding wire speed is not constant.| Debris is blocking up the opening.| Clean out the contact batch or change it and replace the anti-adherence product. Ref. 041806.
The wire skids in the rollers.| •  Control the roller pressure or replace it.
•  Wire diameter non-compatible with roller.
•  Covering wire guide in the torch non-compatible.
The wire-feeder motor doesn’t operate.| Reel or roller brake too tight.| Release the brake and rollers.
---|---|---
Electrical supply problem.| Check that the power switch is in the «On» position.
Bad wire feeding.| Covering wire guide dirty or damaged.| Clean or replace
The drive roller is too loose| Tighten the drive roller knob
Reel brake too tight| Release the brake
No welding current| Bad connection to the main supply| Check the mains connection and look if the plug is fed by power socket.
Bad earth connection.| Check the earth cable (connection and clamp condition).
Torch trigger inoperative.| Check the torch trigger / replace torch
The wire jams (after the rollers)| Guide wire sheath crushed.| Check the sheath and torch body.
Wire jammed in the torch| Clean or replace.
No capillary tube.| Check the presence of capillary tube.
Wire speed too fast| Reduce the wire speed
The welding bead is porous| The gas flow rate is not sufficient.| Adjust flow range 15 to 20 L / min.
Clean the working metal.
Gas bottle empty.| Replace it.
Gas quality unsatisfactory.| Replace it.
Air flow or wind influence.| Prevent drafts, protect welding area.
Gas nozzle dirty.| Clean or replace the gas nozzle.
Poor quality wire.| Use suitable WIRE for MIG-MAG welding.
Surface to weld in bad condition. (rust, etc…)| Clean the metal before welding.
Very important flashing particles.| Arc voltage too low or too high.| See welding settings.
Bad earth connection.| Adjust the earth cable for a better connection.
Insufficient gas flow.| Adjust the gas flow.
No gas flow at the end of the torch.| Bad gas connection.| Check the gas connection at the welding machine.
Check the gas regulator and the solenoid valves.

MMA
Check the electrode polarity on the packaging.

MMA
Check the electrode polarity on the packaging

250T-C / 320T-C :

FV 220M-C :

MULTIWELD 250T-C

SPARE PARTS

56056

5| Feet| 56120
6| Wire feeder| 53589
7| Texas Connector| 51478
8| Polarity inversion cable| 53596
9| Black button| 73009
10| Black button| 73099
11| Handle support| 56190
12| Handle support| 56191
13| Display PCBA| 53572
14| Control PCBA| 53593
15| Output Inductor| 53591
16| Main Transformer| 53590
17| IGBT driver PCBA| 53595
18| IGBT PCBA| 53594
19| Secondary Rectifier PCBA| B4084
20| Fan| 53592
21| External grill| 56094
22| Power Cable| B3104
23| Logic Switch| 53578

24

| Solenoid valve| 71542

71702

71703

25| Input Inductor| C32562
26| Primary Rectifier PCBA| 53574
27| Filter PCBA| 53577

56056

5| Feet| 56120
6| Wire feeder| C51563
7| Texas Connector| 51468
8| Polarity inversion cable| B3125
9| Black button| 73009
10| Black button| 73099
11| Handle support| 56190
12| Handle support| 56191
13| Display PCBA| B4096
14| PFC inductor.| 63691
15| Main circuit board| B4108
16| Fan| C16533
17| External grill| 56094
18| Power Cable| C51142
19| Switch| C51545
20| Solenoid valve| 71542
71702
71703

CIRCUIT DIAGRAM

MULTIWELD 250T-C :

21P05R21P04PCON9C21P12H1H3C21P13R21P17R21P18R21P19C21P01C21P02C21P03123412124356MULTIWELD 320T-C :

MULTIWELD FV 220M-C :

TECHNICAL SPECIFICATIONS

| MULTIWELD 250T-C| MULTIWELD 320T-C
---|---|---
Primary|
Power supply voltage| 400 V +/- 15%| 400 V +/- 15%
Mains frequency| 50 / 60 Hz| 50 / 60 Hz
Fuse| 16 A| 16 A
Secondary| MMA| MIG-MAG| MMA| MIG-MAG
No load voltage| 59 V| 64 V
Normal current output (I2)| 40  220 A| 40  250 A| 40  300 A| 40  320 A
Conventional voltage output (U2)| 21.6  28.8 V| 16  26.5 V| 21.6  32 V| 16  30 V
Duty cycle at 40°C (10 min)  ПВ% при 40°C (10 мин) Standard EN60974 1. Норма EN60974-1| Imax| 20%| 20 %
100%| 120 A| 130 A| 140 A| 160 A
60%| 150 A| 170 A| 180 A| 200 A
|
Motor speed| 2 > 15 m/min| 3 > 18 m/min
Supported wire reels| Ø 200 – 300 mm| Ø 200 – 300 mm
| 0.5 MPa (5 bars)| 0.5 MPa (5 bars)
Drive roller type| A| B
Functioning temperature| -10°C  +40°C| -10°C  +40°C
Storage temperature| -25°C  +55°C| -25°C  +55°C
Protection level| IP21| IP23
Dimensions (LxWxH)| 58 x 52 x 32 cm| 65 x 52 x 34 cm
Weight| 32 kg| 38 kg

*The duty cycles are measured according to standard EN60974-1 à 40°C and on a 10 min cycle.
While under intense use (> to duty cycle) the thermal protection can turn on, which switches the arc off and the indicator Keep the machine’s supply on, to enable cooling until protection cancellation.
The machine has a specification with a “dropping current output” in MMA and with a “constant current output” in MIG/MAG.

| MULTIWELD FV 220M-C
---|---
Primary|
Power supply voltage| 110 V +/- 15%| 230 V +/- 15%
Mains frequency| 50 / 60 Hz
Fuse| 32 A| 16 A
Secondary| MMA| MIG-MAG| MMA| MIG-MAG
No load voltage| 67 V| 75 V
Normal current output (I2)| 30  120 A| 30  140 A| 30  200 A| 30  220 A
Conventional voltage output (U2)  (U2)|

21.2  24.8 V

|

15.5  21 V

|

21.2  28 V

|

15.5  25 V

Duty cycle at 40°C (10 min)*| Imax| 30%| 20%
100%| 80 A| 90 A| 100 A| 120 A
60%| 100 A| 110 A| 140 A| 160 A
|
Motor speed| 2 > 11 m/min| 2 > 15 m/min
Supported wire reels| Ø 200 – 300 mm
| 0.5 MPa (5 bars)
Drive roller type| A
Functioning temperature| -10°C  +40°C
Storage temperature| -25°C  +55°C
Protection level| IP23
Dimensions (LxWxH)| 58 x 52 x 34 cm
Weight| 24 kg

*The duty cycles are measured according to standard EN60974-1 à 40°C and on a 10 min cycle.
While under intense use (> to duty cycle) the thermal protection can turn on, which switches the arc off and the indicator switches on.
Keep the machine’s supply on, to enable cooling until protection cancellation.
The machine has a specification with a “dropping current output” in MMA and with a “constant current output” in MIG/MAG.

SYMBOLS

| Caution ! Read the user manual.
---|---
| Three-phase transformer/rectifier.
| Inverter current technology based source delivering direct current.
EN60974-1 EN60974-5 EN60974-10
Class A| This welding machine is compliant with standard EN60974-1/-5/-10 of class A.
| MMA welding (Manual Metal Arc)
| MIG / MAG welding
**| Suitable for welding in environment with an increased risk of electric shock. Such a current source must not however be placed in the welding room or in the surroundings.
IP21| Protected against rain and against fingers access to dangerous parts.
****IP23| Protected against the access of dangerous parts from solid bodies of a Ø ≥12,5mm and water (60% towards the vertical).
| Direct welding current.
U0| No-load voltage
** X(40°C)| Duty cycle according to standard EN 60974-1 (10 minutes – 40°C).
I 2| I2: corresponding conventional welding current
A| Amperes
U 2| U2: Conventional voltage in corresponding loads
V| Volt
Hz| Hertz
| Three-phase power supply 50 or 60Hz
---|---
| Single phase power supply 50 or 60Hz.
U 1| Rated power supply voltage.
I1max| Maximum rated power supply current (effective value).
I1eff| Maximum effective rated power supply current.

| Device(s) compliant with European directives. The certificate of compliance is available on our website.
| EAC Conformity marking (Eurasian Economic Community).
| Equipment in compliance with British requirements. The British Declaration of Conformity is available on our website (see home page).
|
| This hardware is subject to waste collection according to the European directives 2002/96/UE. Do not throw out in a domestic bin !
|
| Equipment in conformity with Moroccan standards. The declaration Cم (CMIM) of conformity is available on our website (see cover page).
| Temperature information (thermal protection).|

GYS SAS
1, rue de la Croix des Landes
CS 54159
53941 SAINT-BERTHEVIN Cedex
France

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