0449 510 001 GB
GB
TAF 1251
Instruction manual
0449 510 001 GB 20110715
Valid for serial no. 935-xxx-xxxx,126-xxx-xxxx
-2-
1
2
3
4
SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TECHNICAL DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.1
4.2
4
6
6
7
Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7
8
5 OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9
5.1
Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9
6 MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10
6.1 Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.1.1
Welding power source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.1.2
Contactor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10
10
10
7 ORDERING OF SPARE PARTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CONNECTION INSTRUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ORDERING NUMBER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10
12
16
17
Rights reserved to alter specifications without notice.
TOCe
-3-
GB
1
SAFETY
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 ob­
served 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 equip­
ment. Incorrect operation of the equipment may lead to hazardous situations which can result in in­
jury to the operator and damage to the equipment.
1.
Anyone who uses the equipment must be familiar with:
S its operation
S location of emergency stops
S its function
S relevant safety precautions
S welding and cutting
2.
The operator must ensure that:
S no unauthorized person is stationed within the working area of the equipment when it is
started up.
S no-one is unprotected when the arc is struck
3.
The workplace must:
S be suitable for the purpose
S be free from drafts
4.
Personal safety equipment
S Always wear recommended personal safety equipment, such as safety glasses, flame-proof
clothing, safety gloves.
S Do not wear loose-fitting items, such as scarves, bracelets, rings, etc., which could become
trapped or cause burns.
5.
General precautions
S Make sure the return cable is connected securely.
S Work on high voltage equipment may only be carried out by a qualified electrician.
S Appropriate fire extinquishing equipment must be clearly marked and close at hand.
S Lubrication and maintenance must not be carried out on the equipment during operation.
CAUTION
This product is solely intended for arc welding.
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© ESAB AB 2011
GB
WARNING
Arc welding and cutting can be injurious to yourself and others. Take precausions when welding and
cutting. Ask for your employer's safety practices which should be based on manufacturers' hazard
data.
ELECTRIC SHOCK - Can kill
S
Install and earth the 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 take fumes and gases away 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 earmuffs or other hearing protection.
S
Warn 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!
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.
CAUTION
Read and understand the instruction manual before
installing or operating.
Dispose of electronic equipment at the recycling facility!
In observance of European Directive 2002/96/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 can provide you with all necessary welding protection and accessories.
-5bb08de
© ESAB AB 2011
GB
2
INTRODUCTION
TAF 1251 is a remote-controlled, two-phase AC welding power source designed for
high-throughput, mechanised submerged-arc welding (SAW).
The welding power source converts, via a thyristor bridge-rectifier, the secondary
voltage's sine wave to a square wave with excellent arc ignition and welding
characteristics.
The welding power source is fan cooled and is overload protected by a thermal
cut-out. Re-setting takes place automatically as soon as the temperature has
reduced to a permitted level.
3
TECHNICAL DATA
TAF 1251
Voltage
346/400/415/500 V, 150 Hz
400/440/550 V, 160 Hz
Primary current
Imax 210 A
Permissible load at:
100 % duty cycle
1250 A /44 V
Setting range
No-load voltage
400-1250 A /28-44 V
70 V
No-load power
Effiency
210 W
89%
Power factor
0,75
Weight
Dimensions L x W x H
608 kg
774 x 598 x 1228
Insulation class (transformer):
H
Enclosure class
IP 23
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 designed for indoor and outdoor use.
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© ESAB AB 2011
GB
4
INSTALLATION
The installation must be carried out by a professional.
Note
Mains supply requirements
High power equipment may, due to the primary current drawn from the mains supply, influence the
power quality of the grid. Therefore connection restrictions or requirements regarding the
maximum permissible mains impedance or the required minimum supply capacity at the interface
point to the public grid may apply for some types of equipment (see technical data). In this case it
is the responsibility of the installer or user of the equipment to ensure, by consultation with the
distrubution network operator if necessary, that the equipment may be connected.
4.1
Location
WARNING
Fasten the equipment - particularly if the
ground is uneven or sloping.
S
Place the welding power source on a level foundation.
S
Make sure there is nothing to prevent the cooling.
Lifting instructions
-7bb08de
© ESAB AB 2011
GB
4.2
Connections
S
On delivery the welding power source is connected
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 16.
S
Make 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 8).
S
Connect the earth cable to the screw marked
S
Connect the mains cable to the main terminal
blocks L1 and L3.
S
Tighten the cable support (1).
S
Connect the control cable between the welding
power source and the control unit to the 28-pole
contact (2) inside the welding power source.
S
Connect the 1-pin measuring cable (4) for
measuring the arc voltage to the return cable/welding head.
S
Connect a suitable welding and return cable to the contacts (3) marked
the front of the power source.
.
on
Mains connection
TAF 1251
Voltage (V)
50 Hz
346
60 Hz
400 / 415
500
400 / 440
550
Phase current I1eff (A) 249
212
170
212
170
Cable area (mm2)
2x(2x70+35)
2x(2x70+35)
2x95+50
2x(2x70+35)
2x95+50
Fuse, slow (A)
250
200
200
200
200
Note:
The mains cable areas and fuse sizes as shown above are in accordance with Swedish regulations.
They may not be applicable in other countries: make sure
that the cable area and fuse sizes comply with the relevant national regulations.
-8bb08de
© ESAB AB 2011
GB
5
OPERATION
General safety regulations for handling of the equipment can be found on
page 4. Read through before you start using the equipment!
Note! Never use the welding power source without side plates.
Note! The power source must be set to analogue mode to use the PEI control unit.
5.1
Controls
The front panel contains:
1.
Main circuit-breaker for switching the mains voltage and the fan on
and off in the welding power source.
S
Position "1" On
S
Position "0" Off
2.
S
The indicator lamp (white) illuminates when the main switch is
switched on.
3.
Indicator lamp for overheating (yellow)
4.
S
The indicator lamp illuminates when the thermal cutout is
deployed due to excess temperature in the welding power
source.
S
The indicator lamp goes out when the temperature in the
welding power source has decreased to a permitted level.
Pushbutton resetting the automatic fuse FU2 for 42 V supply
voltage.
-9bb08de
© ESAB AB 2011
GB
6
MAINTENANCE
CAUTION
All guarantee undertakings from the supplier cease to apply if the customer attempts any
work in the product during the guarantee period in order to rectify any faults.
6.1
Cleaning
6.1.1
Welding power source
WARNING!
Blocked air inlets or outlets will lead to overheating.
S
Clean the welding power source as necessary.
Dry compressed air is recommended for the purpose.
6.1.2
Contactor
WARNING!
Never use compressed air to clean the contactor without first taking it apart
completely.
Note:
To ensure the reliable operation of the contactor, the magnetic parts must be kept
clean.
If the contactor has to be cleaned it must be taken apart, and all the pieces be
cleaned.
Alternatively, the contactor can be replaced.
7
ORDERING OF SPARE PARTS
Repair and electrical work should be performed by an authorized ESAB serviceman.
Use only ESAB original spare and wear parts.
TAF 1251 is designed and tested in accordance with the international and European
standards EN 60974-1 and EN 60974-10. It is the obligation of the service unit which
has carried out the service or repair work to make sure that the product still conforms
to the said standard.
Spare parts may be ordered through your nearest ESAB dealer, see the last page of
this publication.
- 10 bb08de
© ESAB AB 2011
NOTES
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- 11 notes
Diagram
Valid for serial no. 935-xxx-xxxx
- 12 bb08e
© ESAB AB 2011
- 13 bb08e
© ESAB AB 2011
Valid for serial no. 126-xxx-xxxx
- 14 bb08e
© ESAB AB 2011
- 15 bb08e
© ESAB AB 2011
Connection instruction
- 16 bb08c
© ESAB AB 2011
TAF 1251
Ordering number
Ordering no.
Denomination
Notes
0460 517 880 Welding power source
TAF 1251
0459 839 063 Spare parts list
TAF 1251
The spare parts list is available on the Internet at www.esab.com
- 17 bb08o
© ESAB AB 2011
NOTES
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- 18 notes
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- 19 notes
ESAB subsidiaries and representative offices
Europe
AUSTRIA
ESAB Ges.m.b.H
Vienna-Liesing
Tel: +43 1 888 25 11
Fax: +43 1 888 25 11 85
BELGIUM
S.A. ESAB N.V.
Brussels
Tel: +32 2 745 11 00
Fax: +32 2 745 11 28
NORWAY
AS ESAB
Larvik
Tel: +47 33 12 10 00
Fax: +47 33 11 52 03
POLAND
ESAB Sp.zo.o.
Katowice
Tel: +48 32 351 11 00
Fax: +48 32 351 11 20
BULGARIA
ESAB Kft Representative Office
Sofia
Tel/Fax: +359 2 974 42 88
PORTUGAL
ESAB Lda
Lisbon
Tel: +351 8 310 960
Fax: +351 1 859 1277
THE CZECH REPUBLIC
ESAB VAMBERK s.r.o.
Vamberk
Tel: +420 2 819 40 885
Fax: +420 2 819 40 120
ROMANIA
ESAB Romania Trading SRL
Bucharest
Tel: +40 316 900 600
Fax: +40 316 900 601
DENMARK
Aktieselskabet ESAB
Herlev
Tel: +45 36 30 01 11
Fax: +45 36 30 40 03
RUSSIA
LLC ESAB
Moscow
Tel: +7 (495) 663 20 08
Fax: +7 (495) 663 20 09
FINLAND
ESAB Oy
Helsinki
Tel: +358 9 547 761
Fax: +358 9 547 77 71
SLOVAKIA
ESAB Slovakia s.r.o.
Bratislava
Tel: +421 7 44 88 24 26
Fax: +421 7 44 88 87 41
FRANCE
ESAB France S.A.
Cergy Pontoise
Tel: +33 1 30 75 55 00
Fax: +33 1 30 75 55 24
SPAIN
ESAB Ibérica S.A.
Alcalá de Henares (MADRID)
Tel: +34 91 878 3600
Fax: +34 91 802 3461
GERMANY
ESAB GmbH
Solingen
Tel: +49 212 298 0
Fax: +49 212 298 218
SWEDEN
ESAB Sverige AB
Gothenburg
Tel: +46 31 50 95 00
Fax: +46 31 50 92 22
GREAT BRITAIN
ESAB Group (UK) Ltd
Waltham Cross
Tel: +44 1992 76 85 15
Fax: +44 1992 71 58 03
ESAB international AB
Gothenburg
Tel: +46 31 50 90 00
Fax: +46 31 50 93 60
ESAB Automation Ltd
Andover
Tel: +44 1264 33 22 33
Fax: +44 1264 33 20 74
SWITZERLAND
ESAB AG
Dietikon
Tel: +41 1 741 25 25
Fax: +41 1 740 30 55
HUNGARY
ESAB Kft
Budapest
Tel: +36 1 20 44 182
Fax: +36 1 20 44 186
UKRAINE
ESAB Ukraine LLC
Kiev
Tel: +38 (044) 501 23 24
Fax: +38 (044) 575 21 88
ITALY
ESAB Saldatura S.p.A.
Bareggio (Mi)
Tel: +39 02 97 96 8.1
Fax: +39 02 97 96 87 01
North and South America
ARGENTINA
CONARCO
Buenos Aires
Tel: +54 11 4 753 4039
Fax: +54 11 4 753 6313
BRAZIL
ESAB S.A.
Contagem-MG
Tel: +55 31 2191 4333
Fax: +55 31 2191 4440
CANADA
ESAB Group Canada Inc.
Missisauga, Ontario
Tel: +1 905 670 02 20
Fax: +1 905 670 48 79
MEXICO
ESAB Mexico S.A.
Monterrey
Tel: +52 8 350 5959
Fax: +52 8 350 7554
USA
ESAB Welding & Cutting Products
Florence, SC
Tel: +1 843 669 44 11
Fax: +1 843 664 57 48
Asia/Pacific
SOUTH KOREA
ESAB SeAH Corporation
Kyungnam
Tel: +82 55 269 8170
Fax: +82 55 289 8864
UNITED ARAB EMIRATES
ESAB Middle East FZE
Dubai
Tel: +971 4 887 21 11
Fax: +971 4 887 22 63
Africa
EGYPT
ESAB Egypt
Dokki-Cairo
Tel: +20 2 390 96 69
Fax: +20 2 393 32 13
SOUTH AFRICA
ESAB Africa Welding & Cutting Ltd
Durbanvill 7570 - Cape Town
Tel: +27 (0)21 975 8924
Distributors
For addresses and phone
numbers to our distributors in
other countries, please visit our
home page
www.esab.com
CHINA
Shanghai ESAB A/P
Shanghai
Tel: +86 21 2326 3000
Fax: +86 21 6566 6622
INDIA
ESAB India Ltd
Calcutta
Tel: +91 33 478 45 17
Fax: +91 33 468 18 80
INDONESIA
P.T. ESABindo Pratama
Jakarta
Tel: +62 21 460 0188
Fax: +62 21 461 2929
JAPAN
ESAB Japan
Tokyo
Tel: +81 45 670 7073
Fax: +81 45 670 7001
MALAYSIA
ESAB (Malaysia) Snd Bhd
USJ
Tel: +603 8023 7835
Fax: +603 8023 0225
SINGAPORE
ESAB Asia/Pacific Pte Ltd
Singapore
Tel: +65 6861 43 22
Fax: +65 6861 31 95
THE NETHERLANDS
ESAB Nederland B.V.
Amersfoort
Tel: +31 33 422 35 55
Fax: +31 33 422 35 44
www.esab.com
© ESAB AB
110426
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