ESAB LAF 631 Instruction Manual Download Page 7

Master

Slave

Master

Slave

Master

Slave

- 7 -

hga7d1ea

2

INTRODUCTION

2.1

General

Connection in parallel can be done with all sizes of the LAF welding power source.
The current outlet from each welding power source depends on its size, see below.

The mains connection is to be done in the
same way for

Master

and

Slave.

It is possible to use the so-called six-thyristor
effect by inverting the primary terminal of the
main transformer, see page 12.

Connection in Parallel of Welding Power Sources
of the Same Size

Connection in Parallel of Welding Power Sources
of Different Size

When the welding power sources are of different size
the smallest one is to be

Master

.

Current Outlet for Welding Power Sources of the Same Size

If the power sources are of the same size the current outlet will be evenly distributed.

Master 500 A

Slave 500 A

*1 Max = 1600 A

*2 500+500 = 1000 A

Current Outlet for Welding Power Sources of Different Sizes

If the Welding power sources are of different sizes the current outlet will be
procentually evenly distributed.

Master 500 A

Slave 300 A

*1 Max = 1000+600= 1600 A
*2 500+300 = 800 A

GB

Summary of Contents for LAF 631

Page 1: ...0449 546 001 110217 Parallel connection of LAF welding power source Instruction manual...

Page 2: ...2 Rights reserved to alter specifications without notice ENGLISH 3...

Page 3: ...ng power sources and one PEK control box 8 3 Location Drawing 9 3 1 Location drawing Welding Power Source LAF 631 9 3 2 Location drawing Welding Power Source LAF 1001 10 3 3 Location drawing Welding P...

Page 4: ...ency stops S its function S relevant safety precautions S welding 2 The operator must ensure that S no unauthorised person is stationed within the working area of the equipment when it is started up S...

Page 5: ...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...

Page 6: ...of electrical equipment together with normal waste In observance of European Directive 2002 96 EC on Waste Electrical and Electronic Equipment and its implementation in accordance with national law el...

Page 7: ...on in Parallel of Welding Power Sources of the Same Size Connection in Parallel of Welding Power Sources of Different Size When the welding power sources are of different size the smallest one is to b...

Page 8: ...welding power source defined as Slave 10 Set parameter 713 to 0 the travel motor is not controlled by the welding power source defined as Slave 11 Set parameter 762 to 0 Slave does not search for ano...

Page 9: ...9 hga7d2ea 3 Location Drawing 3 1 Location drawing Welding Power Source LAF 631 GB...

Page 10: ...10 hga7d2ea 3 2 Location drawing Welding Power Source LAF 1001 GB...

Page 11: ...11 hga7d2ea 3 3 Location drawing Welding Power Source LAF 1251 1601 GB...

Page 12: ...rimary winding of the Slave is reversed S The phase shift goes down from 120 to 60 see the diagrams below S The following sine wave diagram shows the equalising effect obtained when using inversion of...

Page 13: ...power sources have more than one mains voltage This applies particularly to machines designed for different mains voltages Below you find examples how to connect master and slave to the mains when us...

Page 14: ...DIAGRAM 14 hga7diag Tractor variant...

Page 15: ...15 hga7diag Automation variant...

Page 16: ...16 sida...

Page 17: ...SPARE PARTS LIST 17 SpareFram Edition 101001 Ordering no Denomination Notes 0808573882 Parallel connection kit...

Page 18: ...18 sida...

Page 19: ...19 h808753s Item no Qty Ordering no Denomination Notes 0808573882 Parallel connection kit LAF PEK W01 4 0801389053 Cable 4x2x0 5 liycy W02 1 0458681908 Cable L 4 m 1 0436919007 Auxillary contact block...

Page 20: ...1 7 44 88 87 41 SPAIN ESAB Ib rica S A Alcal de Henares MADRID Tel 34 91 878 3600 Fax 34 91 802 3461 SWEDEN ESAB Sverige AB Gothenburg Tel 46 31 50 95 00 Fax 46 31 50 92 22 ESAB international AB Gothe...

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