ESAB LHE 200, LHE 300, LHE 400 Instruction manual

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LHE 200/300/400

Svetslikriktare Welding rectifier Schweißgleichrichter Redresseurs de soudage Rectificador de soldeo Generatore a corrente continua per saldatura

Bruksanvisning och reservdelsförteckning Instruction manual and spare parts list Betriebsanweisung und Ersatzteilverzeichnis Manuel d'instructions et liste des pièces détachées Instrucciones de uso /Lista de repuestos Istruzioni per l'uso /Elenco ricambi

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Innehållsförteckning	Sidan
Utförande	6
Drift och underhåll	6
Skötsel och service	6
Tekniska data	7
Förbindnigsschema	18
Statisk karakteristik	19
Reservdelsförteckning LHE 200, LHE 300	20-22
Reservdelsförteckning LHE 400	23-25

Design	8
Operation and maintenance	8
Maintenance and service	8
Technical data	9
Circuit diagram	18
Static characteristics	19
Spare parts list LHE 200, LHE 300	20-22
Spare parts list LHE 400	23-25

Page

Inhaltsverzeichnis

Ausführung	10
Betrieb und Wartung	10
Pflege und Wartung	10
Technische Daten	11
Schaltplan	18
Statische Kennlinie	19
Ersatzteilverzeichnis LHE 200, LHE 300	20-22
Ersatzteilverzeichnis LHE 400	23-25

Sommaire	Page
Constructions	12
Opération et entretien	12
Entretien et service	12
Données techniques	13
Schéma électrique	18
Caractéristiques statiques	19
Liste de pièces détachées LHE 200, LHE 300	26-28
Liste de pièces détachées LHE 400	29-31

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Indice	Pagina
Descripción técnica	14
Operación y mantenimiento	14
Mantenimiento y servicio	14
Caracteristicas técnicas	15
Esquema eléctrico	18
Caracteristicas estáticas	19
Lista de repuestos LHE 200, LHE 300	26-28
Lista de repuestos LHE 400	29-31

Indice	Pagina
Caratteristiche	16
Uso e manutenzione	16
Manutenzione e riparazione	16
Dati tecnici	17
Schema elettrico	18
Caratteristiche statiche	19
Lista ricambi LHE 200, LHE 300	26-28
Lista ricambi LHE 400	29-31

Rätt till av specifikationen förbehålles.

ESAB reserves the right to alter specifications without notice.

Änderungen vorbehalten.

ESAB se réserve le droit de modifier sans préavis, les caractéristiques de ses matériels.

Reservados los derehos de modificar las especificaciones sin previo aviso.

Si riserva il dirito ad apportare modifiche alle specifiche, senza preaviso.

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VARNING

BÅGSVETS OCH SKÄRING KAN VARA SKADLIG FÖR ER SJÄLV OCH ANDRA, VAR DÄRFÖR FÖRSIKTIG NÄR NI SVETSAR. FOLJ ER ARBETSGIVARES SÄKERHETSFORESKRIFTER SOM SKALL VARA BASERAD PÅ TILLVERKARENS VARNINGTEXT.

ELEKTRISK CHOCK - Kan döda

Installera och jorda svetsutrustningen enligt tillämplig stordord
Rör ej strömförande delar eller elektroder med bara händer eller med våt skyddsutrustning. Isolera Er själv från jord och arbetsstycke.

• Ombesörj att Er arbetsstälning är säke RÖK OCH GAS • Kan vara farlig för Er hälsa.

Håll ansiktet borta från svetsröken.
Ventilera och sug ut svetsrök och gas från. Ert och andras arbetsömråde.

LJUSSTRÅLEN - Kan skada ögonen och bränna huden

Skydda ögonen och kroppen. Använd lämplig svetshjälm med filterinsäts och bär skyddskläder.
Skydda kringstående med lämpliga skyddskärmar

BRANDFARA

Gnisto till att "svetsloppor") kan orsaka brand. Se därför ännbara föremål inte finns i svetsplatsens

VID FEL

Kontakta fackman

LÄS OCH FÖRSTÅ BRUKSANVISNINGEN FÖRE INSTAL-ATION OCH ANVÄNDNING

WARNING

MANUAL METAL ARC WELDING AND CUTTING CAN BE DANGEROUS FOR BOTH YOURSELF AND FOR OTHERS. SO BE CAREFUL WHEN YOU ARE WELDING, FOLLOW YOUR EMPLOYERS SAFETY REGULATIONS WHICH SHOULD BE BASED ON THE MANUFACTURERS WARN-ING INFORMATION.

ELECTRIC SHOCK - Can kill

Install and earth welding equipment according to the relevant standards.
Do not touch electrically live parts or electrodes with your bare skin, wet gloves or wet clothing.
Insulate yourself from earth and the workpiece

Ensure yourself that your working position is safe. FUMES AND GASES - Can be dangerous for your health

Keep your face away from welding fumes

Ventilate and extract fumes from your working area and that of others. ARC RADIATION - Can injure your eyes and burn your skin

Protect your eyes and body. Use the correct welding screen with filler glass and wear protective clothing. Protect those around you using suitable screens. FIRE HAZARD
- Sparks (welding spatter) can cause fire. Make sure that there is no flammable material in the welding

IN CASE OF FAULTS

• Get experienced help.

READ AND UNDERSTAND THE INSTRUCTIONS BEFORE INSTALLING AND OPERATING.

PROTECT YOURSELF AND OTHERS

WARNING

DAS ELEKTRODENHANDSCHWEISSEN KANN FÜR SIE UND ANDERE GEFÄHRLICH SEIN UND SIE MÜSSEN VORSICHTIG SEIN WÄHREND DES SCHWEISSEN

FLEKTBOSCHOCK - kann töten

Die Schweissstromquelle muss den Vorschriften en-tsprechend instaliert werden.
Berühren sie nicht die stromführende Teile und die Elektrode nut blassen Händer oder mit nasse Sicherheitsvorrichtung
- Isolieren sie von Erde und von Werkstück
Versichern sie sich dass Ihrer Bedinungstand zuverlässig ist RAUCH UND GAS möchten gefährlich sein

Verhalten sie sich weiter des Schweissrauchs

Lüften sie durch und saugen sie den Rauch von Ihrer Arbeitsstätte ab. LICHTBOGENRADIATION - gefährdet Ihre Augen und Ihre Haut Schützen sie Ihre Augen und Ihrer Körper

Nützen sie den Schweisshelm mit Schutzglass und kleiden sie sich entsprechend Schützen sie die andere mit Schutzschirm

BRANDGEFAHR

Funken möchten das Feuer provozieren; Prüfen sie, dass sich kein leicht entzündliches Material an Ihrern Arbeitsplatz befindet

BEI STÖRUNGEN

• Nur Fachleute mit der Behebung von Störungen

LESEN SIE DIESE BETRIEBSANWEISUNG BEVOR SIE DAS INSTALLIEREN UND INBETRIEB NEHMEN

SCHÜTZEN SIE SICH UND DIE ANDEREN

LE SOUDAGE ET LA COUPE A L'ARC PEUVENT ETRE DANGEREUX POUR VOUS COMME POUR AUTRUL SOYEZ DONC TRES PRUDENT EN UTILISANT LA MA-CHINE A SOUDER. OBSERVEZ LES REGLES DE SÉCURITÉ DE VOTRE EMPLOYEUR, QUI DOIVENT ETRE BASÉES SUR LES TEXTES D'AVERTISSEMENT DU FAB-RICANT.

DÉCHARGE ÉLECTRIQUE - Peut tuer

Installer et mettre à la terre l'équipement de soudage en suivant les normes en vigueur. Ne pas toucher les parties conductrices.
Ne pas toucher les électrodes avec les mains nues ou des àrticles protecteurs humides
Isolez-vous du sol et la piéce travailler.

Assurez-vous du soler la picte travanier. Assurez-vous que votre position de travail est sure. FUMÉES ET GAZ - Peuvent ètre nuisibles à votre santé

Eloigner le visage des fumées de soudage
Ventilation et rejet à l'extrieur des fumées de soud age hors de votre lieu de travail (ou de celui d'autrui)

age hors de RISQUES D'INCENDIE

Des étincelles (ou "puces" de soudage) peuvent causer un incendie. S'assurer qu'aucun objet infamable ne se trouve à proximité du lieu de soudage. EN CAZ DE MAUVAIS FONCTIONNEMENT

Faire appel à un spécialiste.

LIRE ATTENTIVEMENT LE MODE D'EMPLOI AVANT D'INSTALER LA MACHINE ET DE L'UTILISER

PROTEGEZ-VOUS ET PROTEGEZ LES AUTRES!

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ADVERTENCIA

LA SOLDADURA POR ARCO MANUAL Y EL CORTE PUEDEN SER PELIGROSOS PARA USTED Y SUS COMPAÑEROS. TENGA CUIDADO AL SOLDAR. SIGA LAS REGULACIONES SOBRE SEGURIDAD EN EL TRABAJO RELACIONADAS A CONTINUACION.

EL ELECTRO SHOCK - Puede matar

Instale la toma de tierra según regulación estándar.
No toque elementos por donde pase la corriente sin guantes o con ropa húmeda.
Aíslese de la toma de tierra y la pieza de trabajo.
Asegúrese de que adopta una posición de trabajo segura.

Los HUMOS y GASES - Pueden ser nocivos para su salud

Mantenga alejado el rostro de los humos de soldadura.
· Ventile y estraiga los humos de su áde trabajo y le de otros.

La RADIACION DEL ARCO - Puede dañar su vision y quemar su piel

Protéjase los ojos y el cuerpo, usando una pantalla protectora con cristales filtrantes y vista ropa protección
Proteja a las personas de su alrededor con pantallas adecuadas.

RIESGO DE INCENDIOS

Las proyecciones de soldadura pueden originar incendios. Cerciórese de que no existen materiales inflamables en el área de soldadura.

EN CASO DE FALLOS

Obtener ayuda adecuada.

LEA Y COMPRENDA LAS INSTRUCCIONES ANTES DE LA INSTALACION Y FUNCIONAMIENTO.

PROTEJASE USTED Y LOS DEMAS!

ATTENZIONE

I LAVORI EFFETTUATIO CON LA SALDATURA AD ARCO E LA FIAMMA OSSIDRICA SONO PERICOLOSI. PROCEDERE CON CAUTELA. SEGUIRE LE DESPOSIZIONI DI SICUREZZA BASATE SUI CONSIGLI DEL FABRICANTE.

CHOCK ELETTRICO - Può essero mortale

Installare e mettere a terra i'elettrosaldatrice secondo le norme.
Non tocacre particolari sotto carico o gli erlettrodi a mani nude o con attrezzatura di protezione bagnata.
Isolarsi dalla terra e dal pezzo in lavorazione.
Assicurarsi che la posizione di lavoro assunta sia sicura.

FUMO E GAS - Possono essere dannosi

Tenere il volto lontano dai funmi di saldatura.
Ventilare l'ambiente e allontanare i fumi dall ambiente di lavoro

IL RAGGIO LUMINOSO - puo causare ustioni e danni agli occhi

Usare elmo protettivo per saldatura adeguato e abiti de protezione.

Proteggere l'ambiente circostante con paraventi o schermature adeguate.

PERICOLO D'INCENDIO

Le scintille della saldatrice possono causare incendi. Allontanare tutti gli oggetti inflammabili dal luogo di saldatura.

IN CASO DI GUASTO

Contattare il personale specializzato.

LEGGERE ATTENTAMENTE LE ISTRUZIONI PRIMA DELL'INSTALLAZIONE E DELL'USO.

PROTEGGETE VOI STESSI E GLI ALTRI

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INSTRUCTION

Design

The LHE 200, LHE 300 and LHE 400 are three-phase welding rectifiers consisting of the following main components: three-phase transformer with movable core, three-phase rectifier bridge with silicon diodes, main contactor (LHE 400), switch (LHE 200, LHE 300), cooling fan and thermostat for overload protection.

Welding current settings are infinitely variable by using a crank. This means you can select the right amount of current for the work in hand. LHE 200 is suitable for welding with electrodes up to ø 4 mm, the LHE 300 accepting up to ø 5 mm and the LHE 400 accepting up to ø 6 mm. The welding cable outlets are of the snap-action type which means that polarity reversion is very simple. The LHE rectifiers use a three-phase power supply which is especially advantageous where the main network is weak. It means that smaller fuses and cable areas can be used than for single-phase connection. With the exception of the fan, there are no moving parts and therefore very little wear. Low operating costs and long life expectancy combine to give optimum welding economy.

The LHE rectifiers are suitable for welding alloy and non-alloy steel, stainless steel, aluminium, copper and bronze. They can also be used for hard facing, cladding and cast iron welding. The rectifiers are fully mobile. They have solid ruber-tyred wheels, a convenient handle and a lifting eyelet for a crane or overhead hoist. Their low centre of gravity gives good balance.

Operation and maintenance

The LHE- rectifiers are fan cooled, air being drawn into the machine through a grill on the back. This air inlet must not be covered while the machine is in use. Grinding operations are often carried out in connection with welding. If so, avoid placing the rectifiers in close proximity to grinding machines. The LHE-rectifiers are manufactured to conform with tamper and drip-proof specifications.

Mains connection

1. The mains supply is connected to the plinth behind the front grill, which is removed by loosening the screws at the top. The grill is then pushed upwards, the lower end is pulled out, and it can then be removed by pulling it downwards.
2. Make sure that the connection plinth is wired for the correct voltage and frequency.
3. Concerning cable area and fuse ratings, see the table listed under Technical data.
4. The welding rectifier is connected to three phases using terminals R, S and T on the connecting plinth.
5. The rectifier must be grounded in accordance with the relevant regulations.
6. Check once more that the rectifier is correctly wired for the mains voltage used.

Operation

1. The welding and ground cables are connected to the outlets at the bottom of the front panel. Polarity reversal is carried out by changing over the welding and ground cable connections.
2. Turn the switch to the "I" position (LHE 200, LHE 300). Press the contactor (LHE 400).
3. Make sure that the air inlet on the back of the machine is not blocked.
4. Using the crank, select the welding current required by the material thickness, the welding electrodes and welding position. The welding current selected is shown by the dial.

Maintenance and service

Under normal operating conditions, the LHE- rectifiers require no maintenance. The only requirement is that they are blown clean annually using dry compressed air at reduced pressure. If the machines are used in dusty conditions, this cleaning should be carried out more often. Where necessary, lubricate the chain and sprocket using Omega grease No.71 or a corresponding heat-resistant grease. When required, the gliding surfaces of the leakage cores can also be smeared with a thin coating of this grease.

Control of diodes

By using ESAB's diode tester, type ZPB, the diodes can easily be checked without removing them from the colling sink.

Never use a bell instrument or buzzer. The ZPB diode tester has order number 160 115-880.

Replacing diodes

The torque for the required diodes is 10 to 15 Nm. When replacing a faulty diode or when tightening a diode, which has loosened for one reason or another, it is most important that the correct tightening torque be applied when the diode is replaced. Insufficient torque results in higher transition resistance, which will result in reduced heat dissipation causing increase in temperature and eventual overheating.

Procedures

1. Connect the diode tester to mains supply of 220 volt AC.
2. Check the diode tester by short-circuiting the two crocodile clips. Both warning lamps should light up.
3. Loosen the top connection of the diode.
4. Connect one crocodile clip to the tip connection of the diode, the other to the cooling sink:
- a) If one lamp lights up, the diode is in working order
- b) If both lamps light up, the diode is short-circuited
- c) If no lamp lights up there is a breakdown in the diode.
5. Repeat items 3 and 4 above on the other diodes.

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Technical data

Mains connection LHE 200	50 Hz			60 Hz
Voltage (V) Primary current (A) Fuse (slow) Cable area (mm ² ) Rating (kVA)	220 20 20 4X4 7,7	380 12 16 4X2,5 7,7	415 11 16 4X2,5 7,7	440 10 16 4X2,5 7,7	-
Mains connection LHE 300	50 Hz			60 Hz
Voltage (V)	220	380	415	· 500	440
Primary current (A)	34	20	18	15	17
Fuse (slow)	35	20	20	16	20
Cable area (mm ² )	4X6	4X4	4X4	4X25	AYA
Rating (kVA)	13	13	13	13	13
Mains connection LHE 400	50 Hz			60 Hz
Voltage (V)	220	380	415	500	440
Primary current (A)	68	39	36	30	34
Fuse (slow)	63	35	35	35	35
Cable area (mm ² )	4X16	4X10	4X10	4X10	4X10
Rating (kVA)	26	26	26	26	26

Note! Primary current and rating refer to a 100% duty cycle.

Permitted load at 35% duty factor	LHE 200	LHE 300	LHE 400
at 65% duty factor	155A/26V	2604/2014	400A/36V
at 100% duty factor	120A/24V	180A/27V	340A/34V 250A/30V
Setting range	A:20A/21V-40A/22V B:35A/22V-170A/27V	47A/22V-260A/30V	70A/23V-400A/36V
Open circuit voltage (V)	65-75	68-77	68-77
Open circuit rating (kW)	0,2	0,3	0,35
Efficiency (η)	0,7	0,7	0,7
Power factor (cosφ) at 150A	0,5	0,5	0,45 H(180 ^° C)
Insulation class	H(180°C)	H(180°C)	0,45 H(180 ^° C)
Protection form	IP 21 AF	IP 21 AF	IP 21 AF
Dimensions and weights
Width (mm)	530	530	610
Depth (mm)	610	610	655
Height without handle (mm)	635	635	770
Height with handle (mm)	950	950	1100
Weight approx. (kg)	75	105	160