Rätt till ändring av specifikationer utan avisering förbehålles.
Ret til ændring af specifikationer uden varsel forbeholdes.
Rett til å endre spesifikasjoner uten varsel forbeholdes.
Oikeudet muutoksiin pidätetään.
Rights reserved to alter specifications without notice.
Änderungen vorbehalten.
Sous réserve de modifications sans avis préalable.
Recht op wijzigingen zonder voorafgaande mededeling voorbehouden.
Reservado el derecho de cambiar las especificaciones sin previo aviso.
Ci riserviamo il diritto di variare le specifiche senza preavviso.
Reservamo--nos o direito de alterar as especificações sem aviso prévio.
SPARE PARTS LIST105...................................................
TOCe
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1DIRECTIVE
DECLARATION OF CONFORMITY
Esab Welding Equipment AB, S--695 81 Laxå, Sweden, gives its unreserved guarantee that welding power source LAF 1000/ 1000M from serial number 615 / 845(M)
complies with standard EN 60974--1, in accordance with the requirements of directive (73/23/EEC) and addendum (93/68/EEC) and with standard EN 50199 in accordance with the requirements of directive (89/336/EEC) and addendum
(93/68/EEC).
Anders Birgersson
Managing Director
Esab Welding Equipment AB
695 81 LAXÅ
SWEDENTel: + 46 584 81000Fax: + 46 584 411924
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2SAFETY
In any arc welding or gouging operation, it is the responsibility of the user to observe certain safety rules
to ensure his personal safety and to protect those working near him. Read all safety articles relevant to
arc welding published by the WMA. Pay particular attention to any CAUTION or WARNING Notes in cluded in this manual. CAUTION indicates possible equipment damage. WARNING indicates possible
hazard to life.
WARNING
The ON/OFF switch on this equipment does not isolate the unit from the mains electrical supply.
AC POWER IS PRESENT ON THE ON/OFF SWITCH TERMINALS.
The ON/OFF lamp is an indication that the supply is switched on and does not imply that the unit is isolated from the supply.
BEFORE REMOVING THE COVERS FOR MAINTENANCE, ISOLATE THE UNIT FROM THE MAINS ELECTRICAL
SUPPLY.
1.Electrical
S Treat electricity with respect. Even the open circuit voltage of this equipment can be dangerous. Adjust-
ments to the torch or replacement of torch parts should be undertaken with the mains supply isolated from
the unit.
If damaged torch cables or torch components are found, the unit must be disconnected from the mains and
defective parts must be replaced using only Murex spare parts.
S Do not work on live circuits or c ables. Disconnect the main power supply before checking the machine or
performing any maintenance operation.
S Be sure the case of the welding machine is properly connected to a good electrical earth.
S Have the wiring for the welding machine installed by a qualified electrician. All connections must be made
according to specifications in force and to general safety standards.
S Do not stand in water or on damp floors while using an arc welder or cutter. Do not use in the rain.
S Do not operate with worn or poorly connected cables. Inspect all cables frequently for insulation failure,
exposed wires and loose connections.
S Do not overload cables or continue to operate with overheating cables. Cables which are too small for the
current carried will overheat, causing rapid deterioration of the insulation.
S Pay attention that live parts of the torch do not touch any metal which is connected to the earth cable. Fix
an insulated hook to hang the torch on when it is not in use.
2.Ventilation
S Do not weld or cut on containers which have held combustible or flammable materials, or materials which
give off flammable or toxic vapours when heated, without proper cleaning.
S Locate the welding/cutting operation far enough from any vapour--type degreaser using trichlorethylene or
other chlorinated hydrocarbons as solvents. The ultraviolet light from the arc can decompose these vapours into toxic gases at a considerable distance from the arc, even though the concentration of the gases
is low enough to be undetectable by smell.
S Be sure to provide adequate ventilation for removal and dilution of fume and gases. Fume exhaust facilities
near the arc, or a ventilated helmet should be used when cutting in confined spaces or on toxic material.
3.Glare
S Never look at the arc without wearing eye protection.
Always use the proper protective clothing, filter glasses, and gloves. Be careful to avoid exposed skin
areas. Do not use cracked or defective helmets or shields.
S Never strike an arc when there is someone near who is not protected from the strong light of the arc.
S Warn bystanders who are not aware of the dangers of ultraviolet light.
4.General
S Take care when lifting the unit.
S Ensure that cylinders are secured by chains.
S Locate the unit so that there is adequate air flow to the ventilation louvres.
S Always dress correctly to protect against glare, radiation and spatter.
5.Fire
S Ensure that the correct type of fire extinguisher is available in the welding area.
S Do not weld near flammable materials or liquids, in or near explosive atmospheres, or on pipes carrying
explosive gases.
6.Vehicle electrics
S When working on motor vehicles, remove the battery and any circuitry which may be damaged by the arc.
S Whilst welding be aware of the possibility of ’hidden wires’ behind panels or bulkheads.
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WARNING
ARC WELDING AND CUTTING CAN BE INJURIOUS TO YOURSELF AND OTHERS. TAKE PRECAUTIONS WHEN WELDING. ASK FOR YOUR EMPLOYER’S SAFETY PRACTICES WHICH SHOULD BE
BASED ON MANUFACTURERS’ HAZARD DATA.
ELECTRIC SHOCK -- Can kill
SInstall and earth the welding unit in accordance with applicable standards.
SDo not touch live electrical parts or electrodes with bare skin, wet gloves or wet clothing.
SInsulate yourself from earth and the workpiece.
SEnsure your working stance is safe.
FUMES AND GASES -- Can be dangerous to health
SKeep your head out of the fumes.
SUse ventilation, extraction at the arc, or both, to keep fumes and gases from your breathing zone and
the general area.
ARC RAYS -- Can injure eyes and burn skin.
SProtect your eyes and body. Use the correct welding screen and filter lens and wear protective
clothing.
SProtect bystanders with suitable screens or curtains.
FIRE HAZARD
SSparks (spatter) can c ause fire. Make sure therefore that there are no inflammable materials nearby.
NOISE -- Excessive noise can damage hearing
SProtect your ears. Use ear defenders or other hearing protection.
SWarn bystanders of the risk.
MALFUNCTION -- Call for expert assistance in the event of malfunction.
READ AND UNDERSTAND THE INSTRUCTION MANUAL BEFORE INSTALLING OR OPERATING.
PROTECT YOURSELF AND OTHERS!
WARNING
This product is intended for industrial use. In a domestic environment this product may cause radio interference. It is the users responsibility to take adequate
precautions.
WARNING
This welding equipment has been designed, manufactured and tested to the highest standards to ensure long
and trouble free life. However, regular maintenance is an essential part of keeping the machine operating in a
reliable and safe manner and your attention is drawn to any maintenance instructions that are contained in this
manual.
In general all welding equipment should be thoroughly inspected, tested and serviced at least annually. More
frequent checking will be required when the equipment is heavily used.
Wear and tear, particularly in electro-- mechanical and moving components, are gradual processes. Caught in
time, repair costs are small and the benefits in performance reliability and safety are significant. Left alone they
can put the equipment, and you, at risk.
Have this equipment regularly inspected and maintained by an approved service centre.
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3INTRODUCTION
LAF 1000/ 1000M are remote--controlled 3--phase welding power sources designed
for high --efficiency mechanical gas metal arc welding (MIG/MAG) or sub arc welding
(SAW). It is always to be used in combination with ESAB‘s control box
A2--A6 Process Controller (PEH).
LAF is fan--cooled and monitored by a thermal overload protection. When the protection enters into action a yellow indicating lamp on the front panel goes on and is
reset automatically as soon as the temperature has gone down to an acceptable
level.
The welding power sources and the control unit are linked together over a 2 --wire
bus enabling precision control of the welding process.
All welding parameter settings for the power source can be made by the operator on
the front panel of the control unit. The operation of the power source is completely
controlled and monitored by this unit. Even the start and stop qualities can be set by
way of the control unit. The preset welding current parameters can also be monitored in the course of welding.
For more detailed information regarding the settings and the working mode of the
welding power source, please refer to the A2--A6 Process Controller (PEH) instruction manual.
3.1Technical data
LAF 1000LAF 1000M
Voltage400/415/500 V, 3µ50 Hz
400/440/550 V, 3µ60 Hz
Permissible load at:
100 % duty cycle
60 % duty cycle
Setting range
MIG/MAG
SAW
No--load voltage52 V52 V
No--load power145 W145 W
Effiency0,840,84
Power factor0,950,95
Weight330 kg330 kg
Dimensions L x W x H646 x 552 x 1090646 x 552 x 1090
Class of enclosureIP 23IP 23
DP, (CSA) drip proof is valid with water
protection cover, No. 458 186--001
Class of application
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 symbolindicates that the power source is designed for use in areas with increased
electrical hazard.
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4INSTALLATION
4.1General
The installation shall be executed by a professional.
4.2Unpacking and erection
WARNING -- TIPPING RISK!
Fasten the equipment -- particularly if the ground is uneven or slanting.
SPlace the welding power source on a level foundation.
SMake sure there is nothing to prevent the cooling.
Lifting instructions
4.3Mounting of the water protection cover
To obtain the stated protection against water, Drip Proof, the water protection cover
shall be mounted.
Mount the water protection cover before use.
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4.4Connections
SOn delivery the welding power source is con-
nected for 400 V. For other supply voltage, switch
over to the desired voltage on the main transformer and the control transformer according to
the connection instructions on page 102.
SMake sure the mains cable has the right sectional
area and fuse it with an adequate fuse according
to applicable local directions (see table on page
41).
SConnect the earth cable to the screw marked.
STighten the cable support (1).
SConnect the mains cable to the main terminal
blocks L1, L2 and L3.
SConnect the control cable between the LAF
welding power source and the control unit to
1
3
the 12--pole contact (2) inside the welding
power source.
SConnect 1 pin socket measure cable (4).
SConnect a suitable welding and return cable to the contacts (3) marked + and --
on the front of the power source.
Mains connection
LAF 1000
Voltage V400415500400440550
Current A
100%
60%
Cableareamm
Fuse, slow A636363636363
LAF 1000M50 Hz60 Hz
Voltage V230400415500230400440550
Current A
100%
60%
Cableareamm
Fuse, slow A125636363125636363
2
2
64
80
4x164x164x164x164x164x16
111
138
4x504x164x164x164x504x164x164x16
50 Hz60 Hz
64
80
64
80
64
80
52
65
52
65
111
138
64
80
64
80
64
80
64
80
52
65
52
65
2
4
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4.5PC board
DIP switches
The PC board (AP1) has two DIP switches (SW1 and SW2) which are preset on delivery. T he settings are not to be changed.
When spare parts are supplied the settings of the DIP switches must be checked
(and set, if necessary) before fitting the PC board into the welding power source.
SDIP switch SW1
To make the communication with the
A2--A6 Process Controller (PEH) work
DIP switch 1 (SW1) must be set.
SDIP switch SW2
DIP switch 2 (SW2) must be set in order to
inform the A2--A6 process controller (PEH)
about the rating of the power source that is
connected.
Setting of DIP switch SW1
SSet pole 6 to “OFF“ position and all other
poles to “ON“.
Setting of DIP switch SW2
SSet pole 3 to “OFF“ position and all other
poles to “ON“.
Welding power source program
The welding power source program is stored in the
flash memory
IC 6. The capsule is fitted in a holder and is replaceable.
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5OPERATION
5.1Controls
The front panel contains:
1.Main switch, breaking the incoming mains
voltage for the welding power source.
2.Indicating lamp (white), showing that the main
switch is activated.
3.Indicating lamp (yellow), showing that the
thermal protection has entered into action due to
overheating in the transformer. The lamp is reset
when the temperature has gone down to an
acceptable level.
4.Pushbutton, for the resetting of automatic fuse FU1 for 42 V supply voltage.
5.Emergency pushbutton. When the button is activated the m ain contactor in the
power source trips and the supply voltage for the control box is broken. (The
emergency button on the control unit has the same function).
5.2Start--up
SConnect the return cable to the work piece.
SSet the main switch (1) to position “I“.
The white indicating lamp (2) goes on and the fan starts.
SSet the welding parameters and start welding by way of the control box
(see the A2--A6 Process Controller 0443 745 XXX instruction manual).
6MAINTENANCE
6.1Cleaning
SClean the welding power source as necessary.
Dry compressed air is recommended for the purpose.
WARNING!
Blocked air inlets or outlets will lead to overheating.
7ORDERING OF SPARE PARTS
Spare parts are ordered through your nearest ESAB representative, see back cover.
When ordering spare parts, please state machine type and number as well as designation and spare part number as shown in the spare parts list on page 105.
This will simplify dispatch and ensure you get the right part.