Valid from Serial NO 518 XXX--XXXX
0456 533 001 98.07.10
LAH 630
101103105107109111102021110025108024042106023061104022041100020040060001
Bruksanvisning
Brugsanvisning
Bruksanvisning
Käyttöohjeet
Instruction manual
Betriebsanweisung
Manuel d’instructions
Gebruiksaanwijzing
Instrucciones de uso
Istruzioni per l’uso
Manual de instruções
Ïäçãßåò ÷ñÞóåùò
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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.
Äéáôçñåßôáé ôï äéêáßùìá ôñïðïðïßçóçò ðñïäéáãñáöþí ×ùñßò ðñïåéäïðïßçóç.
SVENSKA 3..............................................
DANSK 10................................................
NORSK 17................................................
SUOMI 24................................................
ENGLISH 31..............................................
DEUTSCH 38.............................................
FRANÇAIS 45.............................................
NEDERLANDS 52.........................................
ESPAÑOL 59..............................................
ITALIANO 66..............................................
PORTUGUÊS 73..........................................
ÅËËÇÍÉÊÁ 80.............................................
ENGLISH
TOCe
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1 DIRECTIVE 32........................................................
2SAFETY 32...........................................................
3 INTRODUCTION 33...................................................
3.1 TECHNICAL SPECIFICATION 33..............................................
4 INSTALLATION 34....................................................
4.1 Mains connection 34..........................................................
4.2 Connection instruction 35......................................................
5 OPERATION 36.......................................................
5.1 CONTROL PANEL 36.........................................................
6 MAINTENANCE 37....................................................
7 ACCESSORIES 37....................................................
8 ORDERING OF SPARE PARTS 37......................................
ASSEMBLY INSTRUCTIONS 87...........................................
DIAGRAM 88............................................................
SPARE PARTS LIST 89...................................................
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1 DIRECTIVE
DECLARATION OF CONFORMITY
Esab Welding Equipment AB, S--695 81 Laxå, Sweden, gives its unreserved guaran-
tee that welding power source LAH 630 from serial number 518 complies with stan-
dard 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 require-
ments of directive (89/336/EEC) and addendum (93/68/EEC).
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Paul Karlsson
Managing Director
Esab Welding Equipment AB
695 81 LAXÅ
SWEDEN Tel: + 46 584 81000 Fax: + 46 584 12336
Laxå 1996--04--25
2SAFETY
WARNING
READ AND UNDERSTAND THE INSTRUCTION MANUAL BEFORE INSTALLING OR OPERATING.
ARC WELDING AND CUTTING CAN BE INJURIOUS TO YOURSELF AND OTHERS. TAKE PRECAU-
TIONS 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 keep fumes and gases 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 ear defenders or other hearing protection.
S Warn bystanders of the risk.
MALFUNCTION -- Call for expert assistance in the event of malfunction.
PROTECT YOURSELF AND OTHERS!
GB
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3 INTRODUCTION
LAH 630 is designed for high productivity semi--automatic welding (MIG/MAG).
The power supply has a constant voltage characteristic and comprises a control unit
and water--cooled power unit.
The power source is equipped with an overload cut--out which is reset automatically
when the power unit cools down.
LAH 630 can be fitted with a voltmeter and ammeter.
Definitions
MIG-- Metal Inert Gas, gas metal arc welding with Inert shielding gas.
MAG-- Metal Active Gas, gas metal arc welding with Active shielding gas.
3.1 TECHNICAL SPECIFICATION
LAH is available in two variants for different mains supply voltages:
Order. no. 320 735--889
3~ 230/400/415 V 50 Hz -- 230/440 V 60 Hz
Order. no. 320 735--891
3~ 500 V 50 Hz -- 550 V 60 Hz
LAH 630 LAH 630
Mains supply voltage 230/400/415 V 5 0 Hz,
230/440 V 60 Hz
500 V 50 Hz,
550 V 60 Hz
Current setting range DC 75 A/18 V--630 A/44 V 75 A/18 V--630 A/44 V
Permissible load (DC)
60% duty cycle 630 A/44 V 630 A/44 V
80% duty cycle 560 A/42 V 560 A/42 V
100% duty cycle 500 A/39 V 500 A/39 V
Max. open circuit voltage 18--52 V 18--52 V
Efficiency 0.81 0.81
Power factor 0.92 0.92
Control voltage 42 V, 50/60 Hz 42 V, 50/60 Hz
Enclosure class IP 23 IP 23
Application class
Dimensions lxbxh 885/720/930 885/720/930
These power sources comply with the requirements of IEC 974--1 and EN 60974--1.
The symbol indicates that the power source is intended for use in areas where
there is an increased electrical hazard. Equipment marked IP 23 is intended for in-
door and outdoor use.
GB
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4 INSTALLATION
WARNING
This product is intended for industrial use. In a domestic environment this
product may cause radio interference. It is the user’s responsibility to take
adequate precautions.
4.1 Mains connection
Check that the power source is configured for the available mains voltage be-
fore connecting to the mains.
3~ 50 Hz 3~ 60 Hz
Voltage 230 400/415 500 230 440 550
Current 93 49 41 93 49 41
Fuse, slow 80 50 50 80 50 50
Cable area 4x25 4x16 4x16 4x25 4x16 4x16
Fuse, rapid 80 63 63 80 63 63
Cable area 4x25 4x10 4x10 4x25 4x10 4x10
Cable ratings comply with Swedish standards.
S Installation may only be carried out by a qualified electrician.
S Place the equipment in a suitable position and make sure the power source is
not covered or positioned so that cooling is restricted.
S Make sure the machine is configured for the correct voltage and that a fuse of
the correct rating is used. See connection instructions.
S Earth the equipment according to the relevant regulations.
S Connect the control cable between the power source and the wire feed unit.
S Connect the welding cable from the wire feed unit to the socket marked +.
Connect the return cable from the workpiece to either of the sockets marked --.
S Socket A is used for short arc welding (thin sheet or root beads, and
aluminium).
S Socket B is used for short arc welding, but gives a slightly hotter welding
cycle than socket A.
S Socket C is used for spray arc welding in thick plate.
S Connect the water cooling unit, if applicable.
GB
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4.2 Connection instruction
GB
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5 OPERATION
Normally, the shielding gas used is CO2 , pure argon or a mixture of the two.
When welding steel, a gas mixture containing oxygen ensures better arc stability.
SPOT WELDING with steel wire (Autrod 12.51)
Spot welding times should be reduced if penetration is excessive, or increased if
penetration is poor.
Wire diameter, mm 0.8 1.0 1.2 1.6 2.0
Fine adjustment, setting 4 5 5 7 7
Inductance socket -- B -- B -- B -- C -- C
Wire feed speed,m/min 15 15 15 12 10
Inch speed, MED 44 No No/Yes No/Yes Yes Yes
Shielding gas Ar+CO2
1. Set the switch 1 to position I.
The fan will start and indicator lamp 2 will light up. The welding voltage is
continuously adjustable by means of potentiometer 4.
2. Press the trigger on the welding gun; you can now start welding.
5.1 CONTROL PANEL
1
2
3
45
6
7
22. 1. Switch on/off
23. 2. Indicator lamp, mains voltage
24. 3. Indicator lamp, thermal cut--out
25. 4. Potentiometer, voltage
26. 5. Switch, remote control
27. 6. Voltmeter
28. 7. Ammeter
GB
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6 MAINTENANCE
As necessary:
Blow the power source clean using dry compressed air at reduced pressure..
WARNING!
There is a risk of tipping if the wire feed cabinet is fitted with a counterbalance arm.
Secure the equipment, especially if used on an uneven or sloping surface.
Limit the angle of rotation of the wire feed cabinet using the straps supplied.
When moving the equipment do NOT pull on the torch.
7 ACCESSORIES
Volt--Ammeter,assembly. 319 429--882
The following remote control devices can be connected to the power source.
PHB 1 367 317--880
is equipped with a potentiometer with planetary gears, for accurate adjustment.
PHB 2 367 318--880
is equipped with one coarse and one fine adjustment potentiometer.
PAA 6 (long pulse unit) 367 318--880
permits remote control of current and voltage. Current and voltage can be pulsed
independently. Two current and voltage combinations of your own choice can be
preset and selected by means of a switch (2 positions).
PAB 6 367 308--880
Three current and voltage combinations of your own choice can be preset and se-
lected by means of a switch (3 positions).
PAC 8 367 305--880
permits remote control of current and voltage, allows higher current and voltage set-
tings on start--up (hot start). Slope--down function permits lower current and voltage
settings on finishing (crater filling).
8 ORDERING OF SPARE PARTS
When ordering, please state the machine model, serial number and spare part
number as shown in the list.
This simplifies dispatch and ensures correct delivery.
GB
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