ESAB Buddy Arc630i User manual

Brand: ESAB

Model: Buddy Arc630i

Category: Welding System

Type: User manual

ESAB Buddy Arc630i - designed for both MMA and air gouging welding, this powerful inverter welding machine is suitable for a variety of applications. With its user-friendly interface and advanced features, the Buddy Arc630i is ideal for both beginners and experienced welders.

The Buddy Arc630i offers precise welding control, allowing you to adjust the welding current, arc force, and arc ignition current to suit your specific welding needs. The built-in LED indicator provides clear visual feedback during operation.

Buddy Arc630i

Instruction manual

0463 790 001 GB 20210222

TABLE OF CONTENTS

0463 790 001

- 2 -

1 SAFETY

......................................................................................................................................

1.1 Meaning of symbols

....................................................................................................

1.2 Safety precautions

......................................................................................................

2 TECHNICAL DATA

.....................................................................................................................

3 INSTALLATION

...........................................................................................................................

3.1 Installation requirements

............................................................................................

3.2 Electrical connection

..................................................................................................

3.2.1 Connection of switching box

...............................................................................

3.2.2 Connection of output terminals of the power source

..........................................

4 OPERATION

...............................................................................................................................

4.1 Panel functions

............................................................................................................

4.2 Operation of the panel functions

...............................................................................

4.2.1 Local control/remote control switch

....................................................................

4.2.2 MMA/air gouging switch

.....................................................................................

4.2.3 Welding current potentiometer

...........................................................................

4.2.4 Arc force current potentiometer

..........................................................................

4.2.5 Arc ignition current potentiometer

......................................................................

4.2.6 Interface for the remote control

..........................................................................

4.2.7 MMA/TIG switch

.................................................................................................

4.2.8 LED indicator

......................................................................................................

4.3 Welding operation

.......................................................................................................

4.4 Precautions

..................................................................................................................

4.5 Work after welding

......................................................................................................

5 MAINTENANCE

..........................................................................................................................

5.1 Daily maintenance

.......................................................................................................

5.2 Periodic check

.............................................................................................................

6 TROUBLESHOOTING

................................................................................................................

6.1 Fault tracing

.................................................................................................................

6.2 Troubleshooting

..........................................................................................................

7 ORDERING SPARE PARTS

.......................................................................................................

WIRING DIAGRAM

................................................................................................................................

SPARE PARTS LIST

..............................................................................................................................

1   SAFETY

0463 790 001

- 3 -

1 SAFETY

1.1 Meaning of symbols

As used throughout this manual: Means Attention! Be Alert!

DANGER!

Means immediate hazards which, if not avoided, will result in immediate, serious

personal injury or loss of life.

WARNING!

Means potential hazards which could result in personal injury or loss of life.

CAUTION!

Means hazards which could result in minor personal injury.

WARNING!

Before use, read and understand the instruction manual and

follow all labels, employer´s safety practices and Safety Data

Sheets (SDSs).

1.2 Safety precautions

Users of ESAB equipment have the ultimate responsibility for ensuring that anyone who works on or

near the equipment observes all the relevant safety precautions. Safety precautions must meet the

requirements that apply to this type of equipment. The following recommendations should be observed

in addition to the standard regulations that apply to the workplace.

All work must be carried out by trained personnel well-acquainted with the operation of the equipment.

Incorrect operation of the equipment may lead to hazardous situations which can result in injury to the

operator and damage to the equipment.

1. Anyone who uses the equipment must be familiar with:

• its operation

• location of emergency stops

• its function

• relevant safety precautions

• welding and cutting or other applicable operation of the equipment

2. The operator must ensure that:

• no unauthorised person is stationed within the working area of the

equipment when it is started up

• no-one is unprotected when the arc is struck or work is started with the

equipment

3. The workplace must:

• be suitable for the purpose

• be free from drafts

4. Personal safety equipment:

• Always wear recommended personal safety equipment, such as safety

glasses, flame-proof clothing, safety gloves

• Do not wear loose-fitting items, such as scarves, bracelets, rings, etc.,

which could become trapped or cause burns

5. General precautions:

• Make sure the return cable is connected securely

• Work on high voltage equipment may only be carried out by a

qualified electrician

1   SAFETY

0463 790 001

- 4 -

• Appropriate fire extinguishing equipment must be clearly marked and

close at hand

• Lubrication and maintenance must not be carried out on the equipment

during operation

WARNING!

Wire feeders are intended to be used with power sources in MIG/MAG mode only.

If used in any other welding mode, such as MMA, the welding cable between wire feeder

and power source must be disconnected, or else the wire feeder becomes live or

energized.

If equipped with ESAB cooler

Use ESAB approved coolant only. Non-approved coolant might damage the equipment and jeopardize

product safety. In case of such damage, all warranty undertakings from ESAB cease to apply.

Recommended ESAB coolant ordering number: 0465720002.

For ordering information, see the "ACCESSORIES" chapter in the instruction manual.

WARNING!

Arc welding and cutting can be injurious to yourself and others. Take precautions when

welding and cutting.

ELECTRIC SHOCK - Can kill

• Do not touch live electrical parts or electrodes with bare skin, wet gloves

or wet clothing

• Insulate yourself from work and ground.

• Ensure your working position is safe

ELECTRIC AND MAGNETIC FIELDS - Can be dangerous to health

• Welders having pacemakers should consult their physician before welding.

EMF may interfere with some pacemakers.

• Exposure to EMF may have other health effects which are unknown.

• Welders should use the following procedures to minimize exposure to

EMF:

○ Route the electrode and work cables together on the same side

of your body. Secure them with tape when possible. Do not

place your body between the torch and work cables. Never coil

the torch or work cable around your body. Keep welding power

source and cables as far away from your body as possible.

○ Connect the work cable to the workpiece as close as possible

to the area being welded.

FUMES AND GASES - Can be dangerous to health

• Keep your head out of the fumes

• Use ventilation, extraction at the arc, or both, to take fumes and gases

away from your breathing zone and the general area

ARC RAYS - Can injure eyes and burn skin

• Protect your eyes and body. Use the correct welding screen and filter lens

and wear protective clothing

• Protect bystanders with suitable screens or curtains

NOISE - Excessive noise can damage hearing

Protect your ears. Use earmuffs or other hearing protection.

1   SAFETY

0463 790 001

- 5 -

MOVING PARTS - Can cause injuries

• Keep all doors, panels and covers closed and securely in place. Have only

qualified people remove covers for maintenance and troubleshooting as

necessary. Reinstall panels or covers and close doors when service is

finished and before starting engine.

• Stop engine before installing or connecting unit.

• Keep hands, hair, loose clothing and tools away from moving parts.

FIRE HAZARD

• Sparks (spatter) can cause fire. Make sure therefore that there are no

inflammable materials nearby

• Do not use on closed containers.

HOT SURFACE - Parts can burn

• Do not touch parts bare handed.

• Allow cooling period before working on equipment.

• To handle hot parts, use proper tools and/or insulated welding gloves to

prevent burns.

MALFUNCTION - Call for expert assistance in the event of malfunction.

PROTECT YOURSELF AND OTHERS!

CAUTION!

This product is solely intended for arc welding.

CAUTION!

Class A equipment is not intended for use in residential

locations where the electrical power is provided by the public

low-voltage supply system. There may be potential difficulties in

ensuring electromagnetic compatibility of class A equipment in

those locations, due to conducted as well as radiated

disturbances.

NOTE!

Dispose of electronic equipment at the recycling facility!

In observance of European Directive 2012/19/EC on Waste

Electrical and Electronic Equipment and its implementation in

accordance with national law, electrical and/or electronic

equipment that has reached the end of its life must be disposed

of at a recycling facility.

As the person responsible for the equipment, it is your

responsibility to obtain information on approved collection

stations.

For further information contact the nearest ESAB dealer.

ESAB has an assortment of welding accessories and personal protection equipment for

purchase. For ordering information contact your local ESAB dealer or visit us on our website.

2   TECHNICAL DATA

0463 790 001

- 6 -

2 TECHNICAL DATA

Buddy Arc630i

Mains voltage 400 V±10-15%,

3~ 50/60 Hz

Effective input current 53 A

Output current range 20 - 630 A

Permissible load

60% duty cycle 630 A

100% duty cycle 490 A

Power factor at maximum current 0.89

Efficiency at maximum current 85%

Open-circuit voltage

VRD deactivated 85 V DC peak

VRD activated ≤ 20 V DC peak

Operating temperature -10 to +40°C

Dimensions l × w × h 650×355×624 mm

Weight 59 kg

Enclosure class IP23

Application class

Buddy Arc630i MMA power source can produce stable DC arc, which can be used to weld various

metals such as carbon steel, low alloy steel and stainless steel. Hot striking arc current and arc force

current are adjustable respectively. The power source is based on inverter based technology and can

be widely applied in various industries. BuddyArc630i is also suitable for gouging.

Duty cycle

The duty cycle refers to the time as a percentage of a ten-minute period that you can weld or cut at a

certain load without overloading. The duty cycle is valid for 40°C/104°F, or below.

Enclosure class

The IP code indicates the enclosure class, i.e. the degree of protection against penetration by solid

objects or water.

Equipment marked IP23 is intended for indoor and outdoor use.

Application class

The symbol indicates that the power source is designed for use in areas with increased electrical

hazard.

3   INSTALLATION

0463 790 001

- 7 -

3 INSTALLATION

3.1 Installation requirements

Environment requirements

1. Do not install the power source at places with excessive dusts and metal powders.

2. Do not install the power source at places with corrosive or explosive gas.

3. The temperature of the working environment should be between -10 and 40°C.

4. Do not carry out welding with the power source placed on a platform with a pitch

greater than 15°.

5. The power source should be installed in a well-ventilated place with humidity of 90%

or less and without water condense.

6. Pay attention to the wind at the welding site, and use wind deflector if necessary.

Otherwise, the welding process will be affected.

Installation space requirements

The power source should be at least 20 cm away from the walls, and there should be at least 30 cm

between them when two power sources are installed side by side. See the table below to determine

the installation position of the power source.

Reserved space when installing the power source

Power source part Front Top Left Right Rear

Reserved space ≥20 cm ≥10 cm ≥20 cm ≥20 cm ≥20 cm

3.2 Electrical connection

WARNING!

• Connection should be carried out by qualified professional electrical

operators.

• Turn off the power at the switching box and ensure safety before any making

any electrical connection.

• Do not touch the live parts with wet objects.

• Do not put heavy things on the cable.

• Do not connect the earthing wire to the water pipe or building steel bar,

because they are often not fully grounded.

NOTE!

The electrical connection below shows Buddy Arc630i as an example, and operators can

refer to the method below for the electrical connection of other models of this series.

3   INSTALLATION

0463 790 001

- 8 -

3.2.1 Connection of switching box

Connect according to the figure or in other correct ways. Turn off the main power before connection.

1 Power switch of the switching box 3 Input power cord of the power source

2 Fuse (≥80 A) 4 Yellow-green earth wire (earth, not connect to

the null line)

NOTE!

Do not connect with the power on.

• Ask a professional electrician to connect the power source.

• Do not connect two power sources to the same switching box.

• In damp working environments install the leakage protector on a steel tower

or on a steel plate.

3.2.2 Connection of output terminals of the power source

1) Insert the cable with the electrode holder into the “+” quick socket on the front panel of the power

source, and tighten it with an inner hexagon spanner.

2) Insert the cable with the earth clamp into the “-” quick socket on the front panel of the power

source, and tighten it with an inner hexagon spanner. Connect the earth clamp to the work piece.

3) Select a lead wire with appropriate specification to connect the output terminal of the welding

source and the work piece to ensure reliable metal-metal electric connection.

4) Connect the cable directly to the work piece, and avoid too long cable and cable twisting to avoid

interference from other equipment and to get the best operation process.

5) Select cable with a bigger cross section according to the welding current and distance in

long-cable welding. The total voltage drop on the earth cable and the welding cable should not be

greater than 4 V when the current flows through. See the table below for the specification of the

welding cable.

3   INSTALLATION

0463 790 001

- 9 -

Specification of the welding cable

Welding current (under duty cycle of 60%) Minimum cross section of the welding cable

(≤30 m)

200 A 30 mm

300 A 50 mm

400 A 70 mm

NOTE!

Use welding cable with a bigger cross section when the welding distance is longer than

30m.

DCEP: Connect the cable with electrode holder to the “+” quick socket, and the cable with earth clamp

to the “-” quick socket.

DCEN: Connect the cable with electrode holder to the “-” quick socket, and the cable with earth clamp

to the “+” quick socket.

Operator can choose DCEN connection according to work piece and electrode application

requirement. Generally, DCEP connection is recommended for basic electrode, while there is no

special requirement for acid electrode.

4   OPERATION

0463 790 001

- 10 -

4 OPERATION

4.1 Panel functions

Front panel

Ref. No. Part name Function

1 Voltage meter display Displays the welding voltage value.

2 Current meter display Displays the welding current value.

3 Rocker switch To switch between host operation and

remote control box.

4 Rocker switch To switch between MMA and air gouging.

5 Rocker switch To adjust the Lift Arc of the MMA.

6 Welding current potentiometer To adjust the welding current.

7 Hot start potentiometer To adjust the arc ignition current.

8 Arc force current potentiometer To adjust the Arc force current.

9 Power indicator Access power light on.

10 Alarm indicator The light is on when the power source

encountered an error.

11 VRD The purpose of the step-down device is to

ensure the safety of the user.

12 Output quick socket “-” output

13 Socket for the remote control Interface for the remote control.

14 Output quick socket “+” output

Function description for 7 and 8

Arc force

Additional current added to the normal welding current during small gauge welding. When the strip is

to be stuck in the short-circuit transition, a current shall be added immediately to accelerate the droplet

transition and prevent sticking.

4   OPERATION

0463 790 001

- 11 -

Hot start

In the arc starting stage, a large current is applied at the moment of short circuit between the electrode

and the workpiece to facilitate the arc starting.

Both knobs have ten sections, corresponding to the increase of welding current level. For example, if

the welding current is 100 A and the knob 8 is set on level 6, arc force will increase 60 A.

Rear panel

Ref. No. Part name Function

1 Power switch Switch ON/OFF the power source.

2 Cable Power supply input.

3 Fuse holder For mounting the fuse.

4.2 Operation of the panel functions

4.2.1 Local control/remote control switch

Turn the local control/remote control switch to “local control” position, and the welding current can be

adjusted via the potentiometer on the power source panel; turn the local control/remote control switch

to “remote control” position, and the welding current can be adjusted via the external remote control.

4.2.2 MMA/air gouging switch

Turn the MMA/air gouging switch to “MMA” position to use the MMA welding function; turn the

MMA/air gouging switch to “air gouging” position, to use carbon arc gouging function.

4.2.3 Welding current potentiometer

It is used to adjust the welding current value in local control mode, and it does not function in remote

control mode.

4.2.4 Arc force current potentiometer

It is used to adjust the arc force current value, and it does not function in TIG mode. The arc force

current should be adjusted to an appropriate value because too low arc force current would lead to

electrode sticking and too high arc force current would cause excessive spatter. At thin electrode low

4   OPERATION

0463 790 001

- 12 -

current welding or all-position welding, selecting the correct arc force current is even more important.

Set it according to the requirement of the welding process.

4.2.5 Arc ignition current potentiometer

It is used to adjust the arc ignition current value, and it does not function in TIG mode. Generally, it is

recommended to set the arc ignition current at a higher value. It can be adjusted to a lower value to

reduce spatter during arc ignition or to avoid workpiece burn-through when the workpiece is very thin.

4.2.6 Interface for the remote control

When using the remote control with cable wire, insert the aviation plug on the remote control cable into

the interface for the remote control on the power source, and tighten it clockwise. Turn the local

control/remote control switch on the front panel of the power source to “remote control” position, to set

the power source to remote control state. At this time, the current control knob on the front panel of the

power source will not function, and the welding current can only be adjusted through the current

control knob on the remote control. Connect the remote control to the corresponding interface when

using remote control, and then the welding current can be adjusted by the remote control.

4.2.7 MMA/TIG switch

Turn the MMA/TIG switch to “MMA” position, to use MMA welding function. Turn the MMA/TIG switch

to “TIG” position, to use the TIG welding function.

NOTE!

Lift-arc is adopted in TIG mode.

1. Lean the ceramic nozzle of the TIG torch to the work piece.

2. Lower the electrode gradually to contact the work piece by shaking the torch.

3. Move the electrode away from the work piece gently by shaking the torch

again.

4.2.8 LED indicator

When the overcurrent indicator illuminates, it indicates that the power source fails or an accidental halt

occurs. In this condition, shut down the power source and restart it. If the problem persists, shut down

the power source and contact the service personnel. When the overheating indicator illuminates, the

power source will stop welding. In this condition, it is unnecessary to shut down the power source, and

welding can be continued after the overheating indicator goes out. The thermostat is used to protect

the power source from overheating, to prolong the lifespan of the power source. Overheating might be

caused by many factors, for example the fan does not work normally, the power source has been used

for a long time beyond the rated duty cycle, or the power source has worked for a long time in the

environment with a high temperature (over 40 °C). Once overheating occurs, the thermostat will turn

off the current and voltage output of the power source.

4.3 Welding operation

MMA welding process

Switch on the air switch on the back panel after correctly installing the power source, and the power

source will be started. Then, the current meter on the front panel displays the preset current value,

and the fan begins to work, then, adjust the welding current and adjust the arc force current.

4   OPERATION

0463 790 001

- 13 -

Welding parameters

Electrode diameter Recommended welding

current

Recommended welding

voltage

1.0 mm 20–60 A 20.8–22.4 V

1.6 mm 44–84 A 21.76–23.36 V

2.0 mm 60–100 A 22.4–24.0 V

2.5 mm 80–120 A 23.2–24.8 V

3.2 mm 108–148 A 23.32–24.92 V

4.0 mm 140–180 A 24.6–27.2 V

5.0 mm 180–220 A 27.2–28.8 V

6.0 mm 220–260 A 28.8–30.4 V

Carbon arc gouging process

Carbon arc gouging is available for Buddy Arc630i. When carbon arc gouging is needed, turn the

MMA/air gouging switch to “air gouging” position, and the required devices include output cable,

carbon arc gouging pliers and compressed air supply device. The parameters for carbon arc gouging

shown below are used in groove gouging for carbon steel, low alloy steel, stainless steel,

heat-resistant steel and low temperature steel, back gouging for weld bead and eliminating weld

defects. DCEP is commonly used in carbon arc gouging, and the gouging speed is 40–100 cm/min.

Carbon arc gouging parameters

Carbon arc gouging

Pointed carbon

electrode

Carbon electrode

diameter

6 mm 8 mm 10 mm

Applicable current 350–450 A 450–550 A 550–630 A

Applicable plate

thickness

5–10 mm 8–20 mm 2–50 mm

Flat carbon

electrode

Carbon electrode

diameter

5×10 mm 5×15 mm 5×20 mm

Applicable current 350–450 A 450–550 A 600–630 A

Applicable plate

thickness

8–12 mm 8–20 mm ≥20 mm

4.4 Precautions

Overcurrent/overvoltage/overheating protection circuit is installed in this power source. When the

mains voltage, output current or inner temperature exceeds the set standard, the power source will

stop automatically. Too high voltage or other excessive use might cause damage. Pay attention to the

following precautions.

Good ventilation

This power source can create powerful welding current and has strict cooling requirements that cannot

be met with natural ventilation. Therefore the built-in fan is very important for effective cooling and

stable operation. The operator should make sure that the louvers be uncovered and unblocked. The

minimum distance between the power source and nearby objects should be 30cm.

Overvoltage is forbidden

This power source has automatic mains voltage compensation, which ensures that the welding current

varies within a given range. In case that the input mains voltage exceeds the tolerance value, it might

damage the power source. The operator should understand this circumstance fully and adopt relevant

precautions.

4   OPERATION

0463 790 001

- 14 -

Overload is forbidden

Remember to observe the max load current at any moment (refer to the corresponding duty cycle).

Make sure that the welding current should not exceed the maximum load current. Overload might

shorten the power source's lifespan, or even damage the power source.

A sudden stop occurs with the yellow indicator on the front panel illuminating while the power source is

in overload state. Under this circumstance, it is unnecessary to restart the power source. Keep the fan

working to lower the temperature inside the power source. Welding can be continued after the inner

temperature falls into the standard range and the yellow indicator goes out.

4.5 Work after welding

1) Turn off the power of the power source 3–5 mins after the welding work is finished.

2) When shutting off the power, turn off the air switch on the power source firstly and then switch off

the power in the switching box.

5   MAINTENANCE

0463 790 001

- 15 -

5 MAINTENANCE

WARNING!

The mains supply must be disconnected during cleaning and maintenance.

CAUTION!

Only persons with the appropriate electrical knowledge (authorised personnel) may remove

the safety plates.

CAUTION!

The product is covered by manufacturer's warranty. Any attempt to carry out repair work by

non-authorised service centers or personnel will invalidate the warranty.

NOTE!

Regular maintenance is important for safe and reliable operation.

NOTE!

Perform maintenance more often during severe dusty conditions.

Before each use - make sure that:

• Product and cables are not damaged,

• The torch is clean and not damaged.

5.1 Daily maintenance

• Daily checking is very important in keeping the high performance and safe operation

of this power source.

• Do daily checking according to the table below, and clean or replace components

when necessary.

• In order to ensure the high performance of the power source, choose components

recommended when replacing.

Items Requirements Actions

Front panel

Check that any of the components are

damaged or loosely connected.

Check that the cables at the bottom are

tightly connected.

Check that the indicator illuminates after

starting the power source.

If unqualified, check the interior of the

power source, and tighten or replace the

components.

Back panel

Check that the input power cable is in

good condition.

Check that the air intake is unobstructed.

5   MAINTENANCE

0463 790 001

- 16 -

Items Requirements Actions

Cover

Check that the bolts are loosely

connected.

If unqualified, tighten or replace the

components.

Chassis

Check that the rubber feet are damaged

or loosely connected.

Side plates

Check that the side plate is distorted,

damaged or loosely connected.

Fan

Check that the fan or the fan guard is

distorted or damaged.

Check that the fan works or sounds

normal when the power source is

running.

Resolve the failures or replace the fan.

Daily checking of accessories

Item Checking requirements Remarks

Earth cable

Check that the earth wires (including

work piece earth wire and power source

earth wire) break off.

If unqualified, tighten or replace the

components.

Welding cable

Check that the insulating layer of the

cable is worn, or the conductive part of

the cable is exposed.

Check that the cable is drawn by an

external force.

Check that the cable connected to the

work piece is well connected.

Use appropriate methods according to

the work site situation to ensure safety

and normal welding.

5.2 Periodic check

WARNING!

Periodic check should be carried out by qualified professionals to ensure safety. The power

of the switching box and the power source should be shut down before periodic check to

avoid personal injury accidents such as electric shock and burns. Due to capacitors

discharge, checks should be carried out 5 minutes after the power source is powered OFF.

Pay attention to maintenance

Periodic check should be carried out to ensure the long-term normal use of the

power source. Be careful when doing the periodic check, including the inspection

and cleaning of the power source interior.

Generally, periodic check should be carried out every 6 months, and it should be

carried out every 3 months if the welding environment is dusty or with heavy oily

smoke.

Safety

All maintenance and checking should be carry out after the power is disconnected.

Make sure the power plug of the power source is pulled out before removing the

power source cover.

Keep hands, hair and tools away from the moving parts such as the fan to avoid

personal injury or power source damage.

5   MAINTENANCE

0463 790 001

- 17 -

Periodic check

Check periodically whether inner circuit connection is in good condition (especially

plugs). Tighten the loose connection. If there is oxidization, remove it with

sandpaper and then reconnect.

Check periodically whether the insulating layer of all cables is in good condition. If

there is any dilapidation, rewrap it or replace it.

Beware of static

In order to protect the semiconductor components and PCBs from the static

damage, wear antistatic device or touch the metal part of the enclosure to remove

static in advance before contacting the conductors and PCBs of the power source

internal wiring.

Keep it dry

Avoid rain, water and vapor infiltrating the power source. If there is, dry it and check

the insulation of the power source (including between the connections and between

the connection and the enclosure) with an ohmmeter. Only use the power source if

there are no apparent problems with the insulation.

Put the power source back to the original package if it is not to be used for a long

time and place it at a dry location.

Beware of corrosion

Clean the plastic parts with neutral detergent.

6   TROUBLESHOOTING

0463 790 001

- 18 -

6 TROUBLESHOOTING

6.1 Fault tracing

Try these recommended checks and inspections before sending for an authorized service technician.

Type of fault Corrective action

No arc. Check that the mains power supply switch is turned on.

Check that the welding and return cables are correctly connected.

Check that the correct current value is set.

Check the mains power supply fuses.

The welding current is

interrupted during welding.

Check that the thermal cut-outs have tripped (a fault light is displayed

on the control panel).

Check the mains power supply fuses.

The thermal cut-out trips

frequently.

Check that the air inlets and outlets are being blocked.

Make sure that you are not exceeding the rated data for the welding

power source (for example that the unit is not being overloaded)

Check that the welding power source is not clogged with dirt.

Poor welding performance. Check that the welding current supply and return cables are correctly

connected.

Check that the correct current value is set.

Check that the correct electrodes are being used.

6.2 Troubleshooting

Type of fault Cause and solution

The fan does not work and

the meter does not display

after the power source is

started.

1. Make sure that the power switch is closed.

2. Make sure that the input voltage is normal.

3. Check that the fuse on the back panel is blown.

The fan works, the meter

displays normally, but there

is no welding output.

1. The overheating indicator illuminates:

• The power source is under overheating protection.

In this condition, it is unnecessary to pull out the

power plug, and it will recover automatically after

the power source is cooled down.

• Check that the thermal switch is damaged, and

replace it if necessary.

2. The overcurrent indicator illuminates:

• The power source is under overcurrent protection.

In this condition, shut down the power source, and

power it on again to carry out welding.

• If the overcurrent indicator still illuminates after the

power source is powered on again, it indicates that

the power device may be damaged. If this occurs,

contact our service center.

6   TROUBLESHOOTING

0463 790 001

- 19 -

Type of fault Cause and solution

The electrode holder

becomes very hot.

The rated current of the electrode holder is smaller than its actual

working current. Replace with a higher rated current.

Excessive spatter in MMA

welding.

1. The output polarity connection is incorrect. Reverse the

polarity.

2. The arc force current is too high. Adjust the arc force

current appropriately.

7   ORDERING SPARE PARTS

0463 790 001

- 20 -

7 ORDERING SPARE PARTS

CAUTION!

Repair and electrical work should be performed by an authorised ESAB service technician.

Use only ESAB original spare and wear parts.

Buddy Arc630i is designed and tested in accordance with the international and European standards

EN 60974-1 and EN 60974-10. On completion of service or repair work, it is the responsibility of the

person(s) performing the work to ensure that the product still complies with the requirements of the

above standards.

Spare parts and wear parts can be ordered through your nearest ESAB dealer, see esab.com. When

ordering, please state product type, serial number, designation and spare part number in accordance

with the spare parts list. This facilitates dispatch and ensures correct delivery.

Page is loading ...

ESAB Buddy Arc630i User manual

Brand: ESAB

Model: Buddy Arc630i

Category: Welding System

Type: User manual

Download PDF

report

ESAB Buddy Arc630i User manual

ESAB Buddy Arc630i User manual

Related papers

Other documents