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.
ESAB Welding Equipment AB, S--695 81 Laxå, Sweden, gives its unreserved guarantee that welding
power source LTS 160, LTS 250 from serial number 008 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
2SAFETY
Users of ESAB welding 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 welding equipment. The following recommendations should be observed 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 welding
equipment. Incorrect operation of the equipment may lead to hazardous situations which can result
in injury to the operator and damage to the equipment.
1.Anyone who uses the welding equipment must be familiar with:
S its operation
S location of emergency 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 no--one is unprotected when the arc is struck
3.The workplace must:
S be suitable for the purpose
S be free from draughts
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.
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WARNING
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
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 take fumes and gases away 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 cause fire. Make sure therefore that there are no inflammable materials nearby.
NOISE -- Excessive noise can damage hearing
SProtect your ears. Use earmuffs 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!
3INTRODUCTION
LTS 160, LTS 250 are welding power sources of the rectifier type designed for
mechanised TIG welding.
They are fan--cooled and also includes a cooling system for water--cooling of the
welding tool.
They is prepared for connection to an external PC.
3.1Equipment
LTS 160 and LTS 250 are supplied with:
SProgramming box with connection cable (10 m)
SReturn cable (5 m) with return cable clamp
SGashose(2m)withhoseclamp.
SEnd resistor.
SProgramming manual in swedish, english, german och french.
SPC card.
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3.2Programming box
The welding power source is provided with a programming box for:
SProgramming of welding procedures when welding with a welding tool.
SExecuting a welding process.
SStoring welding program in an internal or external memory unit (PC card).
STransferring welding programs between programming units.
SSetting of different parameter values when welding with a TIG hand torch.
For the handling, see Programming manual.
The programming manual is available in the following languages:
Welding power source LTS can be used for welding with:
STube welding tools for joining tubes
STube--to--plate welding tools for welding of tube diameters 12--60 mm
SAutomatic welding machine A25 STB with floating head.
STIG hand torch
A wire feed unit for filler wire can be connected to the welding power sour ce.
Motors for external units (roller beds, turntables, etc.) can be controlled by way of the
PAL 3 motor control unit.
ESAB accessories for mechanised and manual T IG welding are found on
page 157.
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4TECHNICAL DA TA
LTS 160LTS 250
Mains voltage230 V ±10%, 1∼ 50/60 Hz400 V ±10%, 3∼ 50/60 Hz
Permissible load at
35 % duty cycle
60 % duty cycle
100 % duty cycle
No--load power50 W55 W
Power factor0,680,61
Efficiency≥0,75≥0,75
No--load voltage70 V70 V
Primary current:
100% duty cycle
Arc strikeHFHF
Dimensions l x w x h
without cooling unit
with cooling unit
Weight without cooling unit
with cooling unit
Temperature classF (155 _C)F (155 _C)
160 A / 16 V
110A/15V
80 A / 13 V
9A9A
515 x 285 x 620 mm
515 x 285 x 835 mm
37 kg
56,5 kg
250 A / 20 V
180 A / 17 V
140 A / 16 V
515 x 285 x 620 mm
515 x 285 x 835 mm
38 kg
57,5 kg
Enclosure typeIP 23IP 23
Application class
Setting range
LTS 160LTS 250
Operating range, current5 A / 10 V -- 160 A / 16 V5 A / 10 V -- 250 A / 20 V
Steps of adjustment, current1A1A
Wire feed speed0.10--2.50 m/min0.10--2.50 m/min
Pulse and background time0.01 -- 25.0 s0.01 -- 25.0 s
Pre--heat time0 -- 600 s0 -- 600 s
Gas pre-- and post--flow0 -- 6000 s0 -- 6000 s
Slope-- up and slope down0,1 -- 25 s0,1 -- 25 s
Sector0--10r0--10r
Steps of adjustment, sector
break point
Duty cycle
The duty cycle refers to the time as a percentage of a ten--minute period that you can weld at a certain load without overloading the welding power source.
0,001 r0,001 r
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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5INSTALLATION
The in stallatio n must be executed by a p rofessional.
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.
Place the welding power source so as not to prevent the cooling air from circulating
through the machine.
5.1Lifting instructions
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5.2Mains voltage connection
SMake sure the welding power source is connected to the right mains voltage and
that it is properly fused. Connect to earth according to the regulations valid.
The rating plate with connection data.
Recommended cable areas and fuse sizes
LTS 160LTS 250
Mains voltage230 V400 V
Mains frequence50--60 Hz50--60 Hz
Fuse, slow--blow16 A16 A
Cable area
3x2,5mm
2
4x1,5mm
2
5.3Termination resistans
To avoid communication trouble the two end points of
the CAN --bus should be fitted with an termination
resistans. One of the CAN--bus end points is in the
programming box which has a built-- in resistor. The
other one is in the power source and should be fitted
with an termination resistans if the output in question is
not used. For the location of the resistor, see the
following figure.
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5.4Connection of complete welding system
A--AConnection cable -- programming box
B--B, Z--ZMotor cable --wire feed
C--C, S--S Motor cable -- rotation
D--DSignal cable -- external PC
G--GCooling--water hose in
H--HCooling--water hose out
J--JWelding cable
L--LTorch contact
M--MGas hose out
N--NGas hose in
P--PSignal cable -- external PC
Q--QReturn cable +
R--RConnection cable -- pulsetransmitter
VEC
T--T,V--VConnection cable -- CAN 42 V
XConnection cable -- external motor
U--UConnection cable -- rotor VEC
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6OPERATION
General safety regulations for the handling of the equipment can be found on
page 48. Read through before you start using the equipment!
6.1Controls and connections
1 Connection for programming box11 Fuse, slow rupture 1.25 A
(connection 230 V)
2 Connection CAN 42 V for motor control unit
PAL3 and A25 VEC motor
3 White indicating lamp, mains voltage ON13 Connection for flow--guard, (water)
4 Orange indicating lamp, overheating14 Connection for welding and start gas out
5 Switch for mains voltage ON/OFF15 Connection for torch contact, TIG hand torch
6 Connection for root gas in16 Connection for return cable (+)
7 Connection for welding gas in17 Connection for welding cable (--)
8 Connection for start gas in18 Connection for rotation
9 Connection for root gas out19 Connection for wire feed
10 Fuse, slow rupture 1.25 A
(connection 230 V)
12 Connection for cooling unit 230 V, 1.25 A
20 Connection for PC/printer
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6.2Cooling unit
N.B. To give room for the cooling unit under the welding
power source, the tool box on the carriage must be
dismounted.
Screw the cooling unit and the welding power source
together.
6.3Overheating protection
The LTS is provided with a thermal cut--out which trips in case of too high
temperature. The welding current is interrupted and an orange indicating lamp on the
front of the power source lights up. The programming box also shows an error
message. The thermal cut--out is reset automatically when the unit has cooled down.
6.4Flow guard, water
If there is no cooling water flowing, the flow guard will block the welding power
source. The welding current is then interrupted and an error message is displayed in
the character window of the programming unit.
6.5Flow guard, gas
The flow guard interrupts the ongoing welding process if the gas flow falls below 6
l/min. An error message is displayed by the programming box.
6.6Error messages
The welding power source has a built-- in function for handling error messages. All
error messages are presented in the programming box, and in some cases
measures will be taken automatically. See also programming manual 0457 706 xxx.
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7MAINTENANCE
Note:
All warranty undertakings given by the supplier cease to apply if the customer
attempts to rectify any faults on the machine during the warranty period.
Only those persons who have appropriate electrical knowledge (authorised
personnel) may remove the safety plates to connect or carry out service,
maintenance or repair work on welding equipment.
7.1Check--up and cleaning
Generally LTS 160 and LTS 250 does not require any
maintenance. Normally, it is sufficient to blow out the
machine using clean, compressed air (reduced pres sure) annually, and the dust filter should be cleaned
regularly. If the machine is set up in dusty or dirty
environment the machine and the dust filter should
be cleaned more often.
Dismounting the filter
8ORDERING OF SPARE PARTS
LTS 160, LTS 250 is designed and tested in accordance with the EN 60974--1 (IEC
50199) international standard.
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 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.
This will simplify dispatch and ensure you get the right part.
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