ESAB LAF 1001 User manual

Instruction manual

0449 503 101 GB 20230412 Valid for: serial no. 536-xxx-xxxx

LAF1001/

LAF 1001M

TABLE OF CONTENTS

0449 503 101 © ESAB AB 2023

1SAFETY ....................................................................................................... 4

1.1 Meaning of symbols ............................................................................... 4

1.2 Safety precautions ................................................................................. 4

2INTRODUCTION.......................................................................................... 7

3TECHNICAL DATA ...................................................................................... 8

4INSTALLATION............................................................................................ 9

4.1 Location................................................................................................... 9

4.2 Connections............................................................................................ 10

5OPERATION ................................................................................................ 11

5.1 Controls................................................................................................... 11

6MAINTENANCE........................................................................................... 12

6.1 Cleaning .................................................................................................. 12

6.1.1 Welding power source.......................................................................... 12

6.1.2 Contactor.............................................................................................. 12

7ORDERING SPARE PARTS ........................................................................ 13

DIAGRAM ............................................................................................................ 14

CONNECTION INSTRUCTION............................................................................ 16

ORDERING NUMBERS....................................................................................... 18

Rights reserved to alter specifications without notice.

1 SAFETY

0449 503 101 -4- © ESAB AB 2023

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

1 SAFETY

0449 503 101 -5- © ESAB AB 2023

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

○ 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!

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

when welding and cutting.

ELECTRIC SHOCK - Can kill

• Install and ground the unit in accordance with instruction manual.

• 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

0449 503 101 -6- © ESAB AB 2023

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 that there are no inflammable

materials nearby.

• Do not use on closed containers.

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

PROTECT YOURSELF AND OTHERS!

CAUTION!

This product is solely intended for arc welding.

WARNING!

Do not use the power source for thawing frozen pipes.

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 INTRODUCTION

0449 503 101 -7- © ESAB AB 2023

2 INTRODUCTION

LAF 1001/ LAF 1001M are remote-controlled 3-phase welding power sources intended for

highly productive mechanised gas metal arc welding (MIG/MAG) or submerged arc welding

(SAW).

The welding power sources are fan-cooled and are monitored by a thermal cutout against

overload. When the thermal cutout is deployed the yellow lamp on the front panel illuminates

automatically. The reset is carried out automatically when the temperature has decreased to

a permitted level.

3 TECHNICAL DATA

0449 503 101 -8- © ESAB AB 2023

3 TECHNICAL DATA

LAF 1001 LAF 1001M

Mains voltage 380/400/415/500 V, 3~ 50 Hz

440/550 V, 3~ 60 Hz

230/380/400/415/500 V,

3~50Hz

230/440/550 V, 3~ 60 Hz

Zmax 0.04 Ohm 0.04 Ohm

Primary current Imax 84 A Imax 138 A

Values of the conventional load:

100% duty cycle 800 A/44 V 800 A/44 V

60% duty cycle 1000 A/44 V 1000 A/44 V

Setting range SAW 100-1000 A/24-44 V 100-1000 A/24-44 V

Ssc min 4.8 MVA 4.8 MVA

No-load voltage 53 V 56 V

No-load power 180 W 178 W

Efficiency at maximum

current 90% 86%

Power factor at maximum

current 0.95 0.96

Apparent power I2at

maximum current

51.6 kVA 52.9 kVA

Active power I2at

maximum current

48.9 kW 51.0 kW

Operating temperature -10 to +40 °C (+14 to +104 °F) -10 to +40 °C (+14 to +104 °F)

Weight 330 kg (727.5 lb) 330 kg (727.5 lb)

Dimensions L × W × H 646 × 552 × 1090 mm

(25.4×21.7×42.9in.)

646 × 552 × 1090 mm

(25.4×21.7×42.9in.)

Isolation class transformer H H

Enclosure class IP23 IP23

Application class

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.

4 INSTALLATION

0449 503 101 -9- © ESAB AB 2023

4 INSTALLATION

The installation must be carried out by a professional.

NOTE!

Mains supply requirements

This equipment complies with IEC 61000-3-12 provided that the short-circuit power is

greater than or equal to Sscmin at the interface point between the user's supply and

the public system. It is the responsibility of the installer or user of the equipment to

ensure, by consultation with the distribution network operator if necessary, that the

equipment is connected only to a supply with a short-circuit power greater than or

equal to Sscmin. Refer to the technical data in the TECHNICAL DATA chapter.

4.1 Location

WARNING!

Secure the equipment - particularly

if the ground is uneven or sloping.

• Place the welding power source on a level foundation.

• Make sure there is nothing to prevent the cooling.

Lifting instructions

4 INSTALLATION

0449 503 101 - 10 - © ESAB AB 2023

4.2 Connections

• On delivery the welding power source is connected for

400 V.

• For other supply voltage:

Remove the left side plate.

Perform the switchings on the main and control

transformer in accordance with the section "Connection

instruction".

• Select the mains cable with the correct cable area and

fuse the cable with the correct fuse in accordance with

local regulations (see the "Main connection" table

below).

• Remove the front plates (x 2).

•

Connect the ground cable to the screw marked .

• Tighten the cable clamp (1).

• Connect the mains cables to the main connection terminals L1, L2 and L3 (5).

• Connect the control cable between the welding power source and the control box to

the 28-pin connector (2) on the inside of the welding power source.

• Connect the 1-pin measuring cable (4) for measuring the arc voltage to the return

cable/welding head.

• Connect a suitable welding and return cable in the connectors (3) marked + and - on

the front of the welding power source.

• Fit the side/ front plates.

Mains connection

LAF 1001 50 Hz 60 Hz

Voltage (V) 380 400 415 500 440 550

Phase current I1eff (A) 67 64 64 52 64 52

Cable area (mm2)4 × 16 4 × 16 4 × 16 4 × 16 4 × 16 4 × 16

Fuse, slow (A) 80 63 63 63 63 63

Miniature circuit breaker (A) 80 80 80 63 80 63

LAF 1001M 50 Hz 60 Hz

Voltage (V) 230 380 400 415 500 230 440 550

Phase current I1eff (A) 108 67 64 64 51 108 64 51

Cable area (mm2)4 × 50 4 × 16 4 × 16 4 × 16 4 × 16 4 × 50 4 × 16 4 × 16

Fuse, slow (A) 125 80 63 63 63 125 63 63

Miniature circuit breaker (A) 125 80 80 80 63 125 80 63

NOTE!

The mains cable areas and fuse sizes as shown above are in accordance with

Swedish regulations. For other regions, supply cables must be suitable for the

application and meet local and national regulations.

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