ESAB Caddy Arc 151i User manual

Brand: ESAB

Model: Caddy Arc 151i

Category: Welding System

Type: User manual

This manual is also suitable for

Valid for serial no. 927-xxx-xxxx0460 446 187 US 20110628

Caddy

Arc 151i, Arc 201i

Instruction manual

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TOCa

Rights reserved to alter specifications without notice.

1 USER RESPONSIBILITY 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2 SAFETY PRECAUTIONS - English 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3 PRECAUCION DE SEGURIDAD - Spanish 8. . . . . . . . . . . . . . . . . . . . . . . . . . . .

4 MESURES DE SECURITE - French 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1 SAFETY 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2 INTRODUCTION 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.1 Equipment 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.2 Control panel 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3 TECHNICAL DATA 19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4 INSTALLATION 20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.1 Location 20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.2 Primary input 20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.2.1 Recommended fuse sizes and minimum cable area 21. . . . . . . . . . . . . . . . . . . . . . .

5 OPERATION 21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5.1 PFC - Power factor correction 22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5.2 Connections and control devices 22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5.3 Connection of welding and return cable 22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5.4 Overheating protection 23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5.5 SMAW welding 23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5.6 GTAW welding 23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5.7 Remote control unit 24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6 MAINTENANCE 24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6.1 Inspection and cleaning 25. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7 FAULT-TRACING 26. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7.1 Fault codes 26. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8 ORDERING SPARE PARTS 27. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

9 DISMANTLING AND SCRAPPING 27. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SCHEMATIC DIAGRAM 28. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

ORDERING NUMBER 33. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

ACCESSORIES 34. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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US warnings

Be sure this information reaches the operator.

You can get extra copies through your supplier.

These INSTRUCTIONS are for experienced operators. If you are not fully familiar with the

principles of operation and safe practices for arc welding equipment, we urge you to read

our booklet, “Precations and Safe Practices for Arc, Cutting and Gouging, “Form 52-529.

Do NOT permit untrained persons to install, operate, or maintain this equipment. Do NOT

attempt to install or operate this equipment until you have read and fully understand these

instructions. If you do not fully understand these instructions, contact your supplier for

further information. Be sure to read the Safety Precautions before installing or operating

this equipment.

1 USER RESPONSIBILITY

This equipment will perform in conformity with the description thereof contained in this manual and

accompanying labels and/or insert when installed, operated, maintained and repaired in accordance

with the instruction provided. This equipment must be checked periodically. Malfunctioning or poorly

maintained equipment should not be used. Parts that are broken, missing, worn, distorted or

contaminated should be replaced immediately. Should such repair or replacement become necessary,

the manufacturer recommends that a telephone or written request for service advice be made to the

Authorized Distributor from whom it was purchased.

This equipment or any of its parts should not be altered without the prior written approval of the

manufacturer. The user of this equipment shall have the sole responsibility for any malfunction which

results from improper use, faulty maintenance, damage improper repair or alteration by anyone other

than the manufacturer or a service facility designated by the manufacturer.

2 SAFETY PRECAUTIONS - English

WARNING: These Safety Precautions are for your protection. They summarize precautionary

information from the references listed in Additional Safety Information section. Before performing any

installation or operating procedures, be sure to read and follow the safety precautions listed below as

well as all other manuals, material safety data sheets, labels, etc. Failure to observe Safety

Precautions can result in injury or death.

PROTECT YOURSELF AND OTHERS

Some welding, cutting and gouging precesses are noisy and require ear

protection. The arc, like the sun, emits ultraviolet (UV) and other radiation

and can injure skin and eyes. Hot metal can cause burns. Training in the

proper use of the processes and equipment is essential to prevent accidents.

Therefore:

1. Always wear safety glasses with side shields in any work area, even if welding helmets face

shields and goggles are also required.

2. Use a face shield fitted with the correct filter and cover plates to protect your eyes, face, neck

and ears from sparks and rays of the arc when operating or observing operations. Warn

bystanders not to watch the arc and not to expose themselves to the rays of the electric-arc or

hot metal.

3. Wear flameproof gauntlet type gloves, heavy long-sleeve shirt, cuffless trousers, high-topped

shoes and a welding helmet or cap for protection, to protect against arc rays and hot sparks or

hot metal. A flameproof apron may also be desirable as protection against radiated heat and

sparks.

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US warnings

4. Hot sparks or metal can lodge in rolled up sleeves, trouser cuffs, or pockets. Sleeves and collars

should be kept buttoned and open pockets eliminated from the front of clothing.

5. Protect other personnel from arc rays and hot sparks with a suitable nonflammable partition or

curtains.

6. Use goggles over safety glasses when chipping slag or grinding. Chipped slag may be hot and

can fly far. Bystanders should also wear goggles over safety glasses.

FIRES AND EXPLOSIONS

Heat from flames and arcs can start fires. Hot slag or sparks can also cause

fires and explosions. Therefore:

1. Remove all combustible materials well away from the work area or cover the materials with a

protective nonflammable covering. Combusible materials include wood, clot, sawdust, liquid and

gas fuels, solvents, pants and coatings papper, etc.

2. Hot sparks or hot metal can fall through cracks or crevices in floors or wall openings and cause a

hidden smoldering fire or fires on the floor below. Make certain that such openings are protected

from hot sparks and metal.

3. Do not weld, cut or perform other hot work until the workpiece has been completely cleaned so

that there are no substances on the workpiece which might produce flammable or toxic vapors.

Do not do hot work on closed containers. They may explode.

4. Have fire extinguishing equipment handy for instant use, such as a garden hose, water pail, sand

bucket, or portable fire extinguisher. Be sure you are trained in its use.

5. Do not use equipment beyond its ratings. For example, overloaded welding cable can overheat

and create a fire hazard.

6. After completing operations, inspect the work area to make certain there are no hot sparks or hot

metal which could cause a later fire. Use fire watchers when necessary.

7. For additional information refer to NFPA Standard 51B, “Fire Prevention in Use of Cutting and

Welding Processes”, available from the National Fire Protection Association, Batterymarch Park,

Quincy, MA 02269.

ELECTRICAL SHOCK

Contact with live electrical parts and ground can cause severe injury or

death. DO NOT use AC welding current in damp areas, if movement is

confined, or if there is danger of falling. Therefore:

1. Be sure the power source frame (chassis) is connected to the ground system of the input power.

2. Connect the workpiece to a good electrical ground.

3. Connect the work cable to the workpiece. A poor or missing connection can expose you or others

to a fatal shock.

4. Use well-maintained equipment. Replace worn or damaged cables.

5. Keep everything dry, including clothing, work area, cables, torch/electrode holder and power

source.

6. Make sure that all parts of your bady are insulated from work and from ground.

7. Do not stand directly on metal or the earth while working in tight quarters or a damp area; stand

on dry boards or an insulating platform and wear rubber-soled shoes.

8. Put on dry, hole-free gloves before turning on the power.

9. Turn off the power before removing your gloves.

10. Refer to ANSI/ASC Standard Z49.1 (listed on next page) for specific grounding

recommendations. Do not mistake the work lead for a ground cable.

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US warnings

ELECTRIC AND MAGNETIC FIELDS

May be dangerous. Electric current flowing through any conductor causes

localized Electric and Magnetic Fields (EMF). Welding and cutting current

creates EMF around welding cables and welding machines.

Therefore:

1. Welders having pacemakers should consult their physician before welding. EMF may interfere

with some pacemakers.

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

3. Welders should use the following procedures to minimize exposure to EMF:

a. Route the electrode and work cables together. Secure them with tape when possible.

b. Never coil the torch or work cable around your body.

c. Do not place your body between the torch and work cables. Route cables on the same side

of your body.

d. Connect the work cable to the workpiece as close as possible to the area being welded.

e. Keep welding power source and cables as far away from your body as possible.

FUMES AND GASES

Fumes and gases, can cause discomfort or harm, particularly in confined

spaces. Do not breathe fumes and gases. Shielding gases can cause

asphyxiation.

Therfore:

1. Always provide adequate ventilation in the work area by natural or mechanical means. Do not

weld, cut or gouge on materials such as galvanized steel, stainless steel, cooper, zinc, lead

beryllium or cadmium unless positive mechanical ventilation is provided. Do not breathe fumes

from these materials.

2. Do not operate near degreasing and spraying operations. The heat or arc can react with

chlorinated hydrocarbon vapors to form phosgene, a highly toxic gas and other irritant gases.

3. If you develop momentary eye, nose or throat irritation while operating, this is an indication that

ventilation is not adequate. Stop work and take necessary steps to improve ventilation in the work

area. Do not continue to operate if physical discomfort persists.

4. Refer to ANSI/ASC Standard Z49.1 (see listing below) for specific ventilation recommendations.

5. WARNING: This product when used for welding or cutting, produces fumes or gases which

contain chemicals known to the State of Californa to cause birth defects and in some cases

cancer (California Health & Safety Code §25249.5 et seq.)

CYLINDER HANDLING

Cylinders, if mishandled, can rupture and violently release gas. Sudden

rupture of cylinder valve or relief device can injure or kill.

Therefore:

1. Use the proper gas for the process and use the proper pressure reducing regulator designed to

operate from the compressed gas cylinder. Do not use adaptors. Maintain hoses and fittings in

good condition. Follow manufacturer's operating instructions for mounting regulator to a

compressed gas cylinder.

2. Always secure cylinders in an upright position by chain or strap to suitable hand trucks,

undercarriages, benches, wall, post or racks. Never secure cylinders to work tables or fixtures

where they may become part of an electrical circuit.

3. When not in use, keep cylinder valves closed. Have valve protection cap in place if regulator is

not connected. Secure and move cylinders by using suitable hand trucks.

4. Locate cylinders away from heat, sparks and flames. Never strike an arc on a cylinder.

5. For additional information, refer to CGA Standard P-1, “Precations for Safe Handling of

Comporessed Gases in Cylinders”, which is available from Compressed Gas Association, 1235

Jefferson Davis Highway, Arlington, VA 22202.

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US warnings

EQUIPMENT MAINTENANCE

Faulty or improperly maintained equipment can cause injury or death. Therefore:

1. Always have qualified personnel perform the installaion, troubleshooting and maintenance work.

Do not perform any electrical work unless you are qualified to perform such work.

2. Before performing any maintenance work inside a power source, disconnect the power source

from the incoming electrical power.

3. Maintain cables, grounding wire, connections, power cord and power supply in safe working

order. Do not operate any equipment in faulty condition.

4. Do not abuse any equipment or accessories. Keep equipment away from heat sources such as

furnaces, wet conditions such as water puddles, oil or grease, corrosive atmospheres and

inclement weather.

5. Keep all safety devices and cabinet covers in position and in good repair.

6. Use equipment only for its intended purpose. Do not modify it in any manner.

ADDITIONAL SAFETY INFORMATION

For more information on safe practices for electric arc welding and cutting equipment,

ask your supplier for a copy of “Precautions and Safe Practices for Arc Welding,

Cutting and Gouging”, Form 52-529.

The following publications, which are available from the American Welding Society, 550 N.W. LeJuene

Road, Miami, FL 33126, are recommended to you:

1. ANSI/ASC Z49.1 - “Safety in Welding and Cutting”

2. AWS C5.1 . “Recommended Practices for Plasma Arc Welding”

3. AWS C5.2 - “Recommended Practices for Plasma Arc Cutting“

4. AWS C5.3 - “Recommended Practices for Air Carbon, Arc Gouging and Cutting”

5. AWS C5.5 - “Recommended Practices for Gas Tungsten Arc Welding”

6. AWS C5.6 - “Recommended Practices for Gas Metal Arc welding”

7. AWS SP - “Safe practices” - Reprint, Welding Handbook

8. ANSI/AWS F4.1 - “Recommended Safe Practices for Welding and Cutting of Containers That

Have Held Hazardous Substances”

MEANING OF SYMBOLS

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

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

immediate, serious personal injury or loss of life.

Means potential hazards which could result in personal injury or loss

of life.

Means hazards which could result in minor personal injury.

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US warnings

6. Use el equipo sólo para el propósito que fue diseñado. No modifique el equipo en ninguna

manera.

INFORMACION ADICIONAL DE SEGURIDAD

Para más información sobre las prácticas de seguridad de los equipos de arco eléctrico

para soldar y cortar, pregunte a su suplidor por una copia de “Precautions and Safe

Practices for Arc Welding, Cutting and Gouging”, Form 52-529.

Las siguientes publicaciones, disponibles através de la American Welding Society, 550 N.W. LeJuene

Road, Miami, FL 33126, son recomendadas para usted:

1. ANSI/ASC Z49.1 - “Safety in Welding and Cutting”

2. AWS C5.1 . “Recommended Practices for Plasma Arc Welding”

3. AWS C5.2 - “Recommended Practices for Plasma Arc Cutting“

4. AWS C5.3 - “Recommended Practices for Air Carbon, Arc Gouging and Cutting”

5. AWS C5.5 - “Recommended Practices for Gas Tungsten Arc Welding”

6. AWS C5.6 - “Recommended Practices for Gas Metal Arc welding”

7. AWS SP - “Safe practices” - Reprint, Welding Handbook

8. ANSI/AWS F4.1 - “Recommended Safe Practices for Welding and Cutting of Containers That

Have Held Hazardous Substances”

SIGNIFICADO DE LOS SIMBOLOS

Según usted avanza en la lectura de este folleto: Los Símbolos Significan ¡Atención!

¡Esté Alerta! Se trata de su seguridad.

Significa riesgo inmediato que, de no ser evadido, puede resultar

inmediatamente en serio daño personal o la muerte.

Significa el riesgo de un peligro potencial que puede resultar en serio

daño personal o la muerte.

Significa el posible riesgo que puede resultar en menores daños a la

persona.

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US warnings

INFORMATIONS COMPLEMENTAIRES RELATIVES A LA SECURITE Pour plus

d'informations relatives aux règles de sécurité pour les travaux de gougeage, de

découpage et de soudage à l'arc électrique, demander au fournisseur une copie du

formulaire 52/529.

L'American Welding Society, 550 N.W. LeJuene Road, Miami, FL 33126 – USA, publie les documents

suivants dont la lecture est également recommandée :

1. ANSI/ASC Z49.1 - ”Safety in Welding and Cutting”

2. AWS C5.1 . ”Recommended Practices for Plasma Arc Welding”

3. AWS C5.2 - ”Recommended Practices for Plasma Arc Cutting”

4. AWS C5.3 - ”Recommended Practices for Air Carbon, Arc Gouging and Cutting”

5. AWS C5.5 - ”Recommended Practices for Gas Tungsten Arc Welding”

6. AWS C5.6 - ”Recommended Practices for Gas Metal Arc welding”

7. AWS SP - ”Safe practices” - Réédition, Manuel de soudage

8. ANSI/AWS F4.1 - ”Recommended Safe Practices for Welding and Cutting of Containers That

Have Held Hazardous Substances”

SYMBOLES

Signification des symboles utilisés dans ce manuel : = Attention ! Rester prudent !

= danger immédiat ; risque de blessures graves ou mortelles.

= danger potentiel ; risque de blessures graves ou mortelles.

= danger ; risque de blessures légères.

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1 SAFETY

Users of ESAB welding 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 welding equipment. The following recommen

dations 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 welding

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 welding equipment must be familiar with:

 its operation

 location of emergency stops

 its function

 relevant safety precautions

 welding

2. The operator must ensure that:

 no unauthorized person is stationed within the working area of the equipment when it is

started up.

 no-one is unprotected when the arc is struck

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 ground cable is connected securely.

 Work on high voltage equipment may only be carried out by a qualified electrician.

 Appropriate fire extinquishing equipment must be clearly marked and close at hand.

 Lubrication and maintenance must not be carried out on the equipment during operation.

DO NOT USE THE POWER SOURCE FOR THAWING FROZEN PIPES.

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READ AND UNDERSTAND THE INSTRUCTION MANUAL BEFORE INSTALLING OR OPERATING.

ARC WELDING AND CUTTING CAN BE INJURIOUS TO YOURSELF AND OTHERS. TAKE

PRECAUSIONS WHEN WELDING. ASK FOR YOUR EMPLOYER'S SAFETY PRACTICES

WHICH SHOULD BE BASED ON MANUFACTURERS' HAZARD DATA.

ELECTRIC SHOCK - CAN KILL

S INSTALL AND EARTH THE WELDING UNIT IN ACCORDANCE WITH APPLICABLE

STANDARDS.

S DO NOT TOUCH LIVE ELECTRICAL PARTS OR ELECTRODES WITH BARE SKIN,

WET GLOVES OR WET CLOTHING.

S INSULATE YOURSELF FROM EARTH AND THE WORKPIECE.

S ENSURE YOUR WORKING STANCE IS SAFE.

FUMES AND GASES - CAN BE DANGEROUS TO HEALTH

S KEEP YOUR HEAD OUT OF THE FUMES.

S 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.

S PROTECT YOUR EYES AND BODY. USE THE CORRECT WELDING SCREEN AND

FILTER LENS AND WEAR PROTECTIVE CLOTHING.

S PROTECT BYSTANDERS WITH SUITABLE SCREENS OR CURTAINS.

FIRE HAZARD

S SPARKS (SPATTER) CAN CAUSE FIRE. MAKE SURE THEREFORE THAT THERE ARE

NO INFLAMMABLE MATERIALS NEARBY.

NOISE - EXCESSIVE NOISE CAN DAMAGE HEARING

S PROTECT YOUR EARS. USE EARMUFFS OR OTHER HEARING PROTECTION.

S WARN BYSTANDERS OF THE RISK.

MALFUNCTION - CALL FOR EXPERT ASSISTANCE IN THE EVENT OF MALFUNCTION.

PROTECT YOURSELF AND OTHERS!

Read and understand the instruction manual

before installing or operating.

This product is solely intended for arc welding. Any other use may result in personal

injury and / or equipment damage.

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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

electromagnic compatibility of class A equipment in those locations,

due to conducted as well as radiated disturbances.

2 INTRODUCTION

Arc 151i, Arc 201iis a welding current power source intended for use with coated

electrodes (MMA welding) and TIG welding.

ESAB's accessories for the product can be found on page 34.

2.1 Equipment

Arc 151i, Arc 201i is supplied with a 9.8 feet welding cable, return cable 9.8 feet

mains cable and an instruction manual for power source and control panel.

Instruction manuals in other languages can be downloaded from the website,

www.esab.com.

2.2 Control panel

Control panel A31

 Knob for setting the current

 Mains voltage LED (green)

 Thermal overload trip indicator

(yellow)

Control panel A33

Welding process parameters are controlled via the control panel.

NOTE! See the separate instruction manual for a detailed description of the

control panel.

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3 TECHNICAL DATA

Arc 151i Arc 201i

Mains voltage 230 V, 1  50/60 Hz 230 V, 1  50/60 Hz

Primary current

max

GTAW

max

SMAW

13.8 A

21.3 A

24.1 A

24.9 A

Mains supply Z

max

0.35 ohm Z

max

0.30 ohm

No-load power 30 W 30 W

Voltage/current range, SMAW

A31

8 A /20 V - 150 A /26 V -

A33 4 A /20 V - 150 A /26 V 4 A /20 V - 170 A /26.8 V

Voltage/current range GTAW 3 - 150 A 3 - 220 A

Permissible load at SMAW

25% duty cycle

60% duty cycle

100% duty cycle

150 A / 26.0 V

100 A / 24.0 V

90 A / 23.6 V

170 A / 26.8 V

130 A / 25.2 V

110 A / 24.4 V

Permissible load at GTAW

20% duty cycle

25% duty cycle

60% duty cycle

100% duty cycle

150 A / 16.0 V

120 A / 14.8 V

110 A / 14.4 V

220 A / 18.8 V

150 A / 16.0 V

140 A / 15.6 V

Power factor at maximum current 0.99 0.99

Efficiency at maximum current 80% 81%

Open-circuit voltage

A31 without VRD function

A33 VRD function deactivated

VRD function activated

58 - 72 V

55 - 60 V

< 35 V

55 - 60 V

< 35 V

Operating temperature -14°F - +104° F -14°F - +104° F

Transportation temperature - 4°F - +131° F - 4°F - +131° F

Constant A-weighted sound pressure < 70 dB < 70 dB

Dimensions, l x b x h 16.5 x 7.4 x 8.2 inch 16.5 x 7.4 x 8.2 inch

Weight

with A31

with A33

17.4 lbs

17.9 lbs

18.3 lbs

Enclosure class IP 23 IP 23

Application class

1) Valid for power sources without VRD specification on the rating plate.

2) Valid for power sources with VRD specification on the rating plate. The VRD function is explained in

the instruction manual for the control panel.

Mains supply, Z

max

Maximum permissible line on the network impedance in accordance with IEC 61000-3-11.

Duty cycle

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

tain load without overloading. The duty cycle is valid for 104° F.

Enclosure class

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

objects or water. Equipment marked IP 23 is designed for indoor and outdoor use.

Application class

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

electrical hazard.

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4 INSTALLATION

The installation must be done by a professional.

THE CHASSIS MUST BE CONNECTED TO AN APPROVED ELECTRICAL GROUND.

FAILURE TO DO SO MAY RESULT IN ELECTRICAL SHOCK, SEVERE BURNS OR DEATH.

Mains supply requirements

High power equipment may, due to the primary current drawn from the mains supply, influence the

power quality of the grid. Therefore connection restrictions or requirements regarding the

maximum permissible mains impedance or the required minimum supply capacity at the interface

point to the public grid may apply for some types of equipment (see technical data). In this case it

is the responsibility of the installer or user of the equipment to ensure, by consultation with the

distrubution network operator if necessary, that the equipment may be connected.

4.1 Location

Position the power source such that its cooling air inlets and outlets are not

obstructed.

4.2 Primary input

ELECTRIC SHOCK CAN KILL! PRECAUTIONARY MEASURES SHOULD BE TAKEN TO

PROVIDE MAXIMUM PROTECTION AGAINST ELECTRICAL SHOCK.

BE SURE THAT ALL POWER IS OFF BY OPENING THE LINE (WALL) DISCONNECT SWITCH

WHEN PRIMARY ELECTRICAL CONNECTIONS ARE MADE TO THE POWER SOURCE.

BE SURE TO CHECK YOUR INPUT LEADS WITH A VOLTMETER TO MAKE SURE ALL

POWER IS OFF.

Check that the welding power source is connected

to the correct voltage and that the correct fuse size

is used. A protective earth connection must be

made in accordance with regulations

Location of rating plate

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4.2.1 Recommended fuse sizes and minimum cable area

Arc 151i Arc 201i

Mains voltage

230 V 10 %, 1-phase 230 V 10 %, 1-phase

Mains frequency 50-60 Hz 50-60 Hz

Mains cable, area 3G2.5 mm

3G2.5 mm

Phase current I

1eff

11.5 A 13.4 A

Welding cable, area 16 mm

16 mm

Fuse

anti-surge

type C MCB

16 A

13 A

16 A

NOTE!

The cable area and fuse rating above comply with Swedish regulations. Use the

welding power source in accordance with the relevant national regulations.

5 OPERATION

General safety regulations for the handling of the equipment can be found on

page 4. Read through before you start using the equipment!

BEFORE MAKING ANY CONNECTIONS TO THE POWER SOURCE OUTPUT

TERMINALS, MAKE SURE THAT ALL PRIMARY INPUT POWER TO THE MACHINE

IS OFF.

ELECTRIC SHOCK CAN KILL! “MACHINERY LOCKOUT PROCEDURES” SHOULD BE

EMPLOYED. IF IT IS NOT POSSIBLE TO USED PADLOCKS, ATTACH A RED TAG TO

THE LINE DISCONNECT SWITCH (OR FUSE BOX) WARNING OTHERS THAT THE

CIRCUIT IS BEING WORKED ON.

ELECTRIC SHOCK CAN KILL! WHEN THE CONTACTOR SWITCH IS IN THE “ON”

POSITION, OUTPUT POWER WILL BE PRESENT THROUGHOUT THE WELDING

CIRCUIT; IE. CABLES, WIRE FEEDER, WIRE SPOOL, DRIVE STAND, GUN AND

ELECTRODE. BE SURE ALL ARE CLEAR OF THE WORKPIECE OR ARCING WILL

RESULT.

Never operate the power source with the cover removed. In addition to the safety

hazards, improper cooling may cause damage to the components. Keep side

panels closed when unit is energized. Welding helmet, gloves and other personal

protection should always be worn when welding.

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5.1 PFC - Power factor correction

The Caddy Arc 151i/201i are 230 V single-phase power sources equipped with a

PFC circuit making it possible to use the full range of the machine on a 16 A fuse.

The PFC also protects the machines against fluctuating mains voltage and makes it

safer to use with a generator. Caddy Arc 151i/201i can operate with extra long

mains cables, over 100 m, giving you a very larger working radius.

5.2 Connections and control devices

1 Connection (+)

SMAW: for return cable or welding cable

GTAW: for return cable

4 Connection (+)

SMAW: for return cable or welding cable

GTMW: for Tig torch l

2 Connection for remote control unit 5 Toggle switch for mains power supply 0 / 1

3 Control panel, see under 2.2 6 Mains cable

5.3 Connection of welding and return cable

The power source has two outputs, a positive terminal (+) and a negative terminal

(-), for connecting welding and return cables. The output to which the welding cable

is connected depends on the type of electrode used. The connecting polarity is

stated on the electrode packaging. Connect the welding cable to the terminal stated

on the electrode packaging.

Connect the return cable to the other output on the power source. Secure the return

cable's contact clamp to the work piece and ensure that there is good contact

between the work piece and the output for the return cable on the power source.

cmha2p11

cmha2p10

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5.4 Overheating protection

The welding power source has a thermal overload trip which operates if the

temperature becomes too high, interrupting the welding current and lighting a yellow

indicating lamp on the front of the power source. The thermal overload trip resets

automatically when the temperature has fallen.

5.5 SMAW welding

Arc 151i / 201i gives direct current, and you can weld most metals to alloy and non-al

loy steel, stainless steel and cast iron.

Arc 151i / 201i allows you to weld most coated electrodes from Ø 1.6 to Ø 3.25.

MMA welding may also be referred to as welding with coated electrodes. Striking the arc

melts the electrode, and its coating forms protective slag.

If, when striking the arc, the tip of the electrode is pressed against the metal, it immedi

ately melts and sticks to the metal, rendering continued welding impossible.

Therefore, the arc has to be struck in the same way that you would light a match.

Quickly strike the electrode against the metal, then raise it

so as to give an appropriate arc length (approx. 0.1 inch).

If the arc is too long, it will crackle and spit before finally

going out completely.

If you are working on a welding bench, check before

attempting to strike the arc that residual waste metal,

pieces of electrode or other objects on the bench do not

insulate the part to be welded.

Once the arc has been struck, move the electrode from

left to right. The electrode must be at an angle of 60° to

the metal in relation to the direction of welding.

When you want to weld wide beads, or when you want

the weld to be so thick that you have to weld in a number

of layers, however, you have to use lateral movements.

5.6 GTAW welding

TIG welding melts the metal of the workpiece, using an arc struck from a tungsten

electrode, which does not itself melt. The weld pool and the electrode are protected

by shielding gas.

TIG welding is particularly useful where high quality is demanded and for welding

thin plate. Arc 151i / 201i also has good characteristics for TIG welding.

In order to TIG weld Arc 151i / 201i must be equipped with:

 a TIG torch with gas valve

 a welding gas cylinder (a suitable welding gas)

 a welding gas regulator (suitable gas regulator)

 tungsten electrode

 suitable auxiliary material, if necessary.

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TIG scrape start (only A31)

To scrape start lightly scrape the tungsten

electrode against the workpiece to create an

arc.

”Live TIG-start” (only A33)

With “Live TIG start” the arc strikes when the tungsten electrode is brought into

contact with the workpiece and then lifted away from it.

5.7 Remote control unit

The remote control unit is connected to the remote control socket on the power

source.

6 MAINTENANCE

Regular maintenance is important for safe, reliable operation.

Only those persons who have appropriate electrical knowledge (authorized

personnel) may remove the safety plates to connect or carry out service,

maintenance or repair work on welding equipment.

INSPECTION, TROUBLESHOOTING, AND REPAIR OF THIS EQUIPMENT SHOULD

BE UNDERTAKEN BY A COMPETENT INDIVIDUAL HAVING AT LEAST GENERAL

EXPERIENCE IN THE MAINTENANCE AND REPAIR OF SEMI-CONDUCTOR

ELECTRONIC EQUIPMENT. MAINTENANCE OR REPAIR SHOULD NOT BE

UNDERTAKEN BY ANYONE NOT HAVING SUCH QUALIFICATIONS.

FAILURE TO REPLACE WORN OR DAMAGED CABLES MAY RESULT IN A BARE

CABLE TOUCHING A GROUNDED OBJECT. THE RESULTING ELECTRICAL ARC

MAY INJURE UNPROTECTED EYES AND WILL PRESENT A SERIOUS FIRE

HAZARD. BODY CONTACT WITH A BARE CABLE, CONNECTOR, OR CONDUCTOR

MAY RESULT IN SEVERE ELECTRICAL SHOCK, CAUSING SERIOUS BURNS OR

DEATH.

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Supplier warranty is void if customer attempts any work on product during the

warranty period.

Do not use filters on this unit as they would restrict the volume of intake air required for

proper cooling. Output ratings on this unit are based on an unobstructed supply of

cooling air drawn over its internal components. Warranty is void if any type of filtering

device is used.

If this power source does not operate properly, stop work immediately and

investigate the cause of the malfunction. Maintenance work must be perfomed by

an experienced person, and electrical work by a trained electrician. Do not permit

untrained persons to inspect, clean, or repair this power source. Use only

recommended replacement parts.

6.1 Inspection and cleaning

Power source

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

How often and which cleaning methods apply depend on: the welding process, arc

times, placement, and the surrounding environment. It is normally sufficient to blow

down the power source with dry compressed air (reduced pressure) once a year.

Clogged or blocked air inlets and outlets otherwise result in overheating.

TIG torch

The TIG torch's wear parts should be cleaned and replaced at regular intervals in

order to achieve trouble-free welding.

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7 FAULT-TRACING

ELECTRICAL SERVICE AND REPAIR SHOULD BE ATTEMPTED ONLY BY A

TRAINED ELECTRICIAN.

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 current supply and return cables are

correctly connected.

 Check that the correct current value is set.

 Check to see whether the MCB has tripped.

The welding current is interrup

ted during welding.

 Check whether the thermal cut-outs have tripped (indicated

by the orange lamp on the front panel).

 Check the mains power supply fuses.

The thermal cut-out trips fre

quently.

 Check to see whether the dust filter is clogged.

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

power source (i.e. that the unit is not being overloaded).

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.

 Check the gas flow.

7.1 Fault codes

Arc 151i, 201i comes with built-in fault monitoring. If a fault occurs, a code is shown

in the display. See instruction manual for the control panel.

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8 ORDERING SPARE PARTS

Do not make any repairs to equipment unless you are fully qualified, as described

in the maintenance section.

Repair and electrical work should be performed by an authorized ESAB service

personnel. Use only ESAB original replacement and wear parts.

To ensure proper operation, it is recommended that only genuine ESAB parts and

products be used with this equipment. The use of no-ESAB parts may void your

warranty.

Replacement parts may be ordered from your ESAB Distibutor

Be sure to indicate any special shipping instructions when ordering replacement part

Refer to the Communication Guide located on the last page of this manal for a list of

customer service phone numbers.

Arc 151i, Arc 201i is designed and tested in accordance with the international and Eu

ropean standards EN 60974-1 and IEC 60974-10 . It is the obligation of the service unit

which has carried out the service or repair work to make sure that the product still

conforms to the said standard.

9 DISMANTLING AND SCRAPPING

Welding equipment primarily consists of steel, plastic and non-ferrous metals, and must

be handled according to local environmental regulations.

Coolant must also be handled according to local environmental regulations.

Dispose of electronic equipment at the recycling facility!

In observance of European Directive 2002/96/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.

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ESAB Caddy Arc 151i User manual

Brand: ESAB

Model: Caddy Arc 151i

Category: Welding System

Type: User manual

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