ESAB LTS Programming Manual

GB

Valid for program version 2.80B, 2.81B0457 706 174 GB 050420

PROWELDER

Programming manual

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TOCe

Rights reserved to alter specifications without notice.

1 INTRODUCTION 4...................................................

1.1 Mode of operation -- Control box 4.............................................

1.2 Sectors 4..................................................................

1.3 Display and keyset 5........................................................

2 WELDING PARAMETERS 9...........................................

2.1 Welding current 9...........................................................

2.2 Gas 9.....................................................................

2.3 Wire feed speed 10..........................................................

2.4 Preheating time 10...........................................................

2.5 Rotation speed 11...........................................................

3 START AND STOP 11.................................................

3.1 Start 11.....................................................................

3.2 Stop 11.....................................................................

3.3 Restart 11...................................................................

4 TO GET STARTED 12.................................................

4.1 General 12..................................................................

4.2 How to indicate a tool code 12.................................................

4.3 How to define your own tool code 13............................................

4.4 How to change languages 17..................................................

5 PROGRAM EDITING 18................................................

5.1 Entering a parameter value 18.................................................

5.2 Increasing/decreasing a parameter value 18.....................................

5.3 Creating a new sector 18......................................................

5.4 Changing the breakpoint of a sector 19..........................................

5.5 Creating a transport sector 19..................................................

5.6 Finding the home position 20..................................................

5.7 Entering a slope 20...........................................................

5.8 Moving within a program 21....................................................

5.9 Deleting in a program 21......................................................

5.10 Changing weld data during welding 22..........................................

5.11 Zeroing the control box 22.....................................................

6 PROGRAMMING EXAMPLES 23.......................................

6.1 Example 1a: 23..............................................................

6.2 Example 1b: 26..............................................................

6.3 Example 1c: 28..............................................................

6.4 Example 1d: 30..............................................................

6.5 Example 1e: 33..............................................................

7 THE LIBRARY 35.....................................................

7.1 Storing a program 35.........................................................

7.2 Recalling a program 35.......................................................

7.3 Viewing the tool code 36......................................................

7.4 Deleting a program 36........................................................

8 MANUAL MODE 37...................................................

8.1 Field of application 37.........................................................

8.2 Editing a parameter 37........................................................

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Rights reserved to alter specifications without notice.

9 PC--CARD 39.........................................................

9.1 Field of application 39.........................................................

9.2 How to install the card 39......................................................

9.3 How to recall a program 39....................................................

9.4 How to store a program 40....................................................

9.5 How to delete a program 40...................................................

9.6 How to take out the PC--card 41................................................

10 ERROR CODES 41....................................................

10.1 Error handling 41.............................................................

10.2 Incorrect editing codes 46.....................................................

11 SHOW CURRENT PARAMETER VALUES 47.............................

11.1 Field of application 47.........................................................

11.2 How to view actual parameter values 47.........................................

12 SOFTWARE UPGRADE 48.............................................

12.1 Application field 48...........................................................

12.2 Menu explanation 48..........................................................

12.3 How to upgrade 48...........................................................

12.4 Measures to be taken when the upgrading of the power source units failed 51........

12.5 Measures to be taken when the upgrading of the control box failed 51...............

13 SOFWARE KEY 52....................................................

13.1 General 52..................................................................

13.2 Locking the control box 52.....................................................

13.3 Unlocking the control box 53...................................................

13.4 Changing the code 54.........................................................

13.5 Forgotten the code? 54.......................................................

13.6 How to indicate limit values 54.................................................

14 NOTEBOOK 56.......................................................

14.1 Field of application 56.........................................................

14.2 How to enter data in the notebook 56...........................................

14.3 Example 2a: 57..............................................................

15 MANUAL WELDING 62................................................

15.1 Field of application 62.........................................................

15.2 How to create a welding program 63............................................

15.3 Example 3a: 63..............................................................

15.4 How to weld 67..............................................................

16 APPENDIX 67........................................................

16.1 Tool codes 67................................................................

16.2 Symbols 68..................................................................

16.3 Setting ranges -- welding parameters 68.........................................

17 MENU STRUCTURE 69................................................

18 TECHNICAL TERMS 70................................................

19 PROGRAMMING NOTES 71............................................

ORDERING NUMBER 75.................................................

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1 INTRODUCTION

1.1 Mode of operation -- Control box

The control box consists of four units, the working area, the library, the notebook

and the auxiliary functio n.

S In the working area the welding program is created.

S In the library the program can be stored.

During welding it is always the contents of the working area that control the

welding process. Thus it is also possible to call in a welding program from the

library to the working area.

S In the notebook you can make your own notes about special welding

parameters, for example.

S In the auxiliary fun ctio n you can:

S change languages

S view all existing error messages

S show actual parameter values

S software upgrade

S sofware key

1.2 Sectors

A welding program for welding of tubes can be divided into different parts or sectors.

Each sector corresponds to a special part of the circumference of the tube. Max.

number of sectors for one program is one hundred (100).

Sector 1

Sector 2

Sector 4

Sector 3

A sector can be assigned its own set of values for different welding parameters, such

as current, rotation speed, wire feed speed, etc. In this way the welding can be

performed using different parameter settings for different parts of the joint of the

tube.

The division into sectors is done by indicating different breakpoints along the

circumference of the tube. Each such breakpoint constitutes the starting point of a

new sector. In the figure below, the breakpoint 0.000 is the starting point of sector 1,

breakpoint 0.250 the starting point of sector 2, etc.

Sector 1

Sector 2

Sector 4

Sector 3

Breakpoint 0,000

Breakpoint 0,250

Breakpoint 0,500

Breakpoint 0,750

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LTS allows welding of up to 10 turns in the same welding joint, i.e. the welding tool

can be rotated 10 times round the tube.

The breakpoints in the previous figure all start with the integer 0 which means that

they form the breakpoints of turn 1. The breakpoints of turn 2 (if there is one)

always start with th e integer 1,etc.

S Turn 1 = breakpoints 0.000 -- 0.999

S Turn 2 = breakpoints 1.000 -- 1.999

S Turn 3 = breakpoints 2.000 -- 2.999

S Turn 4 = breakpoints 3.000 -- 3.999

S Turn 5 = breakpoints 4.000 -- 4.999

S Turn 6 = breakpoints 5.000 -- 5.999

S Turn 7 = breakpoints 6.000 -- 6.999

S Turn 8 = breakpoints 7.000 -- 7.999

S Turn 9 = breakpoints 8.000 -- 8.999

S Turn 10 = breakpoints 9.000 -- 9.999

To terminate a welding program a so--called end sector is indicated.

For a sector to be counted as an end sector the following two conditions must be

fulfilled:

S There is no sector following.

S The welding current value of the sector = 0 ampere.

1.3 Display and keyset

A Display, B Soft keys, C Function keys

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Display

SECTOR 2(4)

5

WELD GAS

ROOT GAS

START GAS

WELD

GAS

ROOT

GAS

START

GAS

s

a

b

c

d

e

15

0.500

f

g

h

The following information is shown in the display.

a The program sector at present involved.

b The nu mber of sectors in the current program.

c The breakpoint of the sector (sector 2 in this example).

d The digit box shows the numerical valu e entered and different

numerical characters. For further information, see page 68.

e Showing that the indicated value has been borrowed from a previous

sector (in this example from sector 1).

g 5 text b o xes describing the function of the so--called so ft keys (f).

h Message line describing the actual state.

WELDING = a welding sequence is going on.

END = a welding sequence is completed.

TRANSPORT= transfer without welding.

STOP = the welding sequence was interrupted due to activation of the stop

key.

Soft

keys

By way of the soft keys ( a) the functions connected with the respective display (in

this case the GAS parameter display), the significance of which is indicated in the

text boxes (b). Depending on the display selected, up to five soft keys can be

activated.

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Function keys

Parameter keys

The welding parameters are divided into five different groups, each group

represented by one ordinary key and a set of soft keys.

W elding current Gas

Rotation speed Wire feed speed

Preheating time

SHIFT key

This key is used for changing the significance of other keys on the keyboard.

PLUS/MINUS keys

These keys are used for increasing/decreasing set values.

Numerical keys

These keys are used for entering the digits 0--9 and decimal point.

Other keys

SLOPE

This key is used when you want to add a slope function to a parameter and is

indicated in the following way in the display

.

By slope is meant a gradual change of a set value.

Slope up = gradual increase

Slope down = gradual decrease

The following parameters can be assigned a slope function:

Current (both peak and background current) when pulsed current is used, rotation,

wire feed speed.

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A slope can be time--controlled by indicating that it shall go on for a certain number

of seconds. It can also be sector--co n trolled, making it a so--called sector slope, by

indicating between which two breakpoints it shall be located.

SECTOR

This key indicates the breakpoint of a program and moving to indicated sector.

STEP

This key is used for stepping forward in the program.

DELETE

This key is used for deleting the whole program, part of a program in the working

area, or just the figures in the digit box.

MANUAL MODE

This key is used for positioning the electrode before welding, and for making sure

that the program in the working area functions as desired.

MEMORY (library)

This key is used for entering or leaving the library and for storing a program, or for

recalling a pr ogram from the library to th e working area.

MODE (au xiliary functions)

This key is used for getting to the different auxiliary functions, such as language,

error log, show actual parameter values and software upgrading.

NOTEBOOK

These keys are used if you want to make notes on a welding sequence.

TOOL CODE

These keys are used if you want to view the code of the connected tool.

RESTART

These keys are used for restarting a welding sequence.

SECTOR SLOPE

These keys are used if you want to create a sector slope.

DIRECT STOP

Pressing this key will lead to direct stop of the welding. The gas postflow takes place

according to settings in the end sector.

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START

This key is used for starting a welding sequence.

STOP

This key is used for stopping a welding sequence. T he welding sequence is

terminated according to the settings in the end sector.

2 WELDING PARAMETERS

Setting ranges for the welding parameters can be found in the APPENDIX on page

68.

2.1 Weld ing current

There are four different parameters for welding current:

S PEAK CURRENT

S BACKGROUND CURRENT

S PEAK TIME (1 s)

S BACKGROUND TIME (1 s)

The values in brackets are preset values.

Peak time

Background time

Background current

Peak current

The welding current can be either pulsed or continuous (not pulsed).

If you want to weld using pulse current a value must be entered for all four

parameters. When welding with continuous current, however, you only need to enter

the value for peak current. Entering a value also for background current will result

in pulsed current with preset pulse and background times. Of course, the pulse

and background times can also be changed.

2.2 Gas

In the Shielding Gas parameter group three parameters are represented:

S WELD GAS

S ROOT GAS

S START GAS

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By weld gas is meant the shielding gas on the upper side of the joint. The weld gas

parameter indicates the time the shielding gas is to flow on the upper side of the joint

before and after welding.

The values of the weld gas parameter are preset. The following values for preflow

and postflow of the weld gas apply at the start if nothing else has been indicated:

S Weld gas preflow = 2 s

S Weld gas postflow = 4 s

By root gas is meant the shielding gas on the underside of the joint. The root gas

parameter indicates the time the shielding gas is to flow on the underside of the joint

before and after welding.

Some shielding gases, for example helium (He), can cause difficulty with regard to

striking the arc. If such a shielding gas is to be used as weld gas, it could be

advisable to use another gas mixture at the start moment -- a so--called start gas.

If one value is entered for weld gas in sector 1 and one for start gas, only the start

gas is going to flow. T he weld gas starts flowing when the arc is struck.

2.3 Wire feed speed

This param eter is used to indicate the desired feed speed of the filler wire in cm /m in.

The wire feed speed can be pulsed or continuous (not pulsed).

In the Wire Feed Speed parameter group two param eters are represented:

S PEAK WIRE FEED SPEED

S BACKGROUND WIRE FEED SPEED

For welding with continuous (not pulsed) wire feed speed, only the peak wire feed

parameter shall be entered.

For welding with pulsed wire feed speed, both the peak wire feed speed and the

background wire feed speed parameters shall be entered.

The pulsed wire feed speed is always automatically synchronised with the welding

current. The wire feed speed is high using pulse current and low using background

current.

2.4 Preheating time

Preheating is used for heating the workpiece at the starting point in order to obtain

correct penetration of the molten pool. The preheating time is defined as the time

elapsing between arc strike and start of the rotary motion. If no value has been

entered for the preheating parameter, the arc will strike at the same time a s r otation

is started.

NOTE! In the Welding Current parameter group you cannot indicate a sector slope

when preheating is involved.

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2.5 Rotation speed

This parameter indicates the rotation speed of the electrode round the workpiece. It

is indicated in per mill (thousandths) of the max. rotation speed of the welding tool

used.

Just like welding current and wire feed speed, the rotation speed can be pulsed or

continuous (not pulsed).

In the Rotation Speed parameter group four parameters are represented:

S ROTATION FORWARDS

S ROTATION BACKWARDS

S PULSED ROTATION FORWARDS

S PULSED ROTATION BACKWARDS

Pulsed rotation is automatically synchronised with the welding current so that the

welding tool stands still when the peak current sets in and rotates during background

current.

3 START AND STOP

3.1 Start

To start the welding, use the START key .

It is impossible to start a welding program if another tool code has been indicated

than the one used in the program in question.

3.2 Stop

A requested welding stop over the STOP key means that the program jumps to

the following end sector, no matter which sector you are in at the moment. The

welding is terminated according to the settings of the end sector.

A requested welding stop over the DIRECT STOP key

leads to immediate stop

of the welding. The gas postflow takes place according to the time set in the end

sector.

3.3 Restart

If the welding was interrupted it is restarted with the SHIFT and START keys

.

Irrespective of whether the welding was stopped over the STOP

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or the DIRECT STOP key , the start parameters of the preceding start

sector are used. T he program then continues from the position in the welding

program where it was interrupted.

4 TO GET STARTED

4.1 General

Some of the factors controlling the welding process are specific to each one o f the

welding tools, for example the rotation speed. T herefore, every welding program

must be connected to a tool code, associated with the tool that the program was

made up for.

4.2 How to indicate a tool code

S Turn the mains switch on the welding power source to position 1.

S The following display comes up:

CHOOSE CONNECTED TOOL

PRB "

PRH

PRD

POC 12--60 mm

TIG HAND TORCH

A25

Example: Yo u have con n ected PRB 33--90

S Move the marking to the line for PRB using the soft key NEXT. Choose the

desired tool and press ENTER.

A window comes up, showing available tool sizes.

S Move the marking to the size of the tool you have connected (in this example

33--90 mm) using the soft key NEXT and press ENTER.

CHOOSE CONNECTED TOOL

PRB " 8-- 17 mm

PRH 17-- 49 mm

PRD 33-- 90 mm

POC 12-- 60 mm 60-- 170 mm

TIG HAND TORCH

A25

Result: T he new tool code is accepted and the following text is displayed:

CONNECTED TOOL: PRB 33--90 mm.

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NOTE! In the event a program with another tool code should already be stored in the

working area this must first be deleted. If you want to preserve the old program, don’t

forget to save it in the library by pressing the MEM key

.

The following information is displayed in the display:

S

P

r

e

s

t

h

e

s

o

f

t

k

e

y

S

P

ress

t

h

eso

f

t

k

ey

P

r

e

s

t

h

e

s

o

f

t

k

e

y

delete existing

p

r

o

g

r

a

m

WARNING!

TOOLTYPE MISMATCH

program.

T

O

L

T

Y

P

E

M

I

S

M

A

T

C

H

p

g

PROGRAM NO 1

PROGRAM MADE FOR: PRB 17-- 49 mm

CONNECTED TOOL: PRB 33-- 90 mm

DELETE

PROG.

Result: T he new tool code is accepted and the display displays: CONNECTED

TOOL: PRB 33--90 mm.

If no figure is entered after PROGRAM NO: _ no welding program has been recalled

from the library.

Note! If the welding data in the working area is changed, the welding program will

not match the program recalled from the library. If you wish to keep the changes,

save them as a new welding program in the library.

4.3 How to define your own tool code

To define your own tool code you m ight have to calculate some of the following

parameter factors:

ROTATION LENGTH, example A, see page 15.

SCALE FACTOR ROTATION, example B, see page 15.

SCALE FACTOR WIRE, example E, see page 16.

NB. The values set under self--defined tool codes remain even if you choose an

ordinary tool code.

Preset

values

Parameter factor PRD A25 PRB, PRC

Rotation length 55350 55350 55350

Scale factor, rotation 846024 960000 678000

Prescaler no yes no

Scale factor, wire 120700 230826 230826

S Set the mains voltage switch on the power source to position 1.

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Example A: PRD 160

The following display comes up:

CHOOSE CONNECTED TOOL:

PRB

PRH

PRD "

POC 12--60 mm

TIG HAND TORCH

A25

S Move the marking to the PRD line using the soft key next and press enter.

The following display comes up:

S Press the soft key

CHOOSE CONNECTED TOOL:

y

s

e

t

s

e

t

.

PRB

PRH

PRD " CUSTOMIZED

POC 60--170 mm

TIG HAND TORCH

A25

SET QUIT ENTER

The following display comes up:

S Press the soft key

INSERT PARAMETERS

y

e

n

t

e

r

t

w

i

c

e

n

t

e

r

t

w

i

c

e

.

DEFAULT PRD A 25 PRB

ROTATIONS LENGTH 55350

SCALE FACTOR ROT 678000

#

NEXT QUIT ENTER

Result: The PRD tool is marked.

S Enter rotation length and scale factor. For correct values, see instruction m anual

0440 100 xxx for PRD 160.

S Press the soft key quit.

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The following display comes up:

S Press the soft key

CHOOSE CONNECTED TOOL:

y

e

n

t

e

r

e

n

t

e

r

.

PRB

PRH

PRD " CUSTOMIZED

POC 60--170 mm

TIG HAND TORCH

A25

SET QUIT ENTER

Result: T he new tool code was accepted and the text CONNECTED TOOL: PRD

comes up.

NB. If there is already a program with another tool code stored in the working area,

this program must be deleted. (If you want to preserve the program, save it in the

library by pressing the MEM key

.)

The following information is displayed in the display:

S

P

r

e

s

t

h

e

s

o

f

t

k

e

y

S

P

ress

t

h

eso

f

t

k

ey

e

s

t

e

s

o

t

e

y

delete existing

p

r

o

g

r

a

m

WARNING!

TOO

L

T

Y

PE MISM

A

TCH

p

ro

g

ram.

T

O

L

T

Y

P

E

M

I

S

M

A

T

C

H

p

r

o

g

r

a

m

.

PROGRAM NO 1

PROGRAM MADE FOR: PRB 17-- 49 mm

CONNECTED TOOL: PRD

DELETE

PROG.

Result: T he new tool code was accepted and in the display the text CONNECTED

TOOL: PRD comes up.

Calculating and setting the rotation

length

ROTATION LENGTH= enter number of pulses / revolution (from start point 0.000 to

1.000)

Calculating and setting the scale

factor

Example B: PRH 6--40, rotation.

S Max rotation speed (V) = 2.778 rpm

S Mechanical gear ratio of drive unit (N) = 2140:1

S Value for pulse generator signals per revolution of motor shaft (P) =15

S Max. adjustable rotation value (M) = 1000.

S The time between the pulses from the pulse generator, indicated in

micro--seconds at the desired max. speed (the data can be found in the

specification of the drive unit used).

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(T)= 60s

x 1 000 000

VxNxP

S Constant ( K) is to be indicated so that K/T = max. adjustable value in the display

(M). K = T x M = 672843

SCALE FACTOR = 672843

S Step to the following display, see example A, page 15.

S Step to parameter

INSERT PARAMETERS

p

f

a

c

t

o

r

S

C

A

L

E

f

a

c

t

o

r

S

C

A

L

E

FACTOR ROTATION

using the soft key

next.

DEFAULT PRD A 25 PRB

ROTATIONS LENGTH 55350

SCALE FACTOR ROT. 672843

#

NEXT QUIT ENTER

S Press the soft key enter.

S Enter the value 672843 for the scale factor using the numerical keys.

S Press the soft key enter.

Result: T he rotation scale factor has been set.

Prescaler

In this window you can choose to count all the pulses or only every eight pulses.

Choosing the latter alternative 8 pulses are counted as 1, so as to enable the use of

high frequency pulse generators (max. 2000 Hz).

INSERT PARAMETERS

SC

A

L

EF

A

CTOR

V

O

L

T. 30

WEAVE -- pulses/mm. 84

PRESCALER

SCALE FACTOR WIRE 230826

SCALE FACTOR WEAVE 119048

NEXT QUIT ENTER

Calculating and setting the wire feed scale factor

Example E: Wire feed u n it MEI 21

S Max. wire feed speed (V) = 2500 mm/min

S Mechanical gear box ratio (N) = 159:1

S Effective circumference of the feed rollers (O) ≈ (29.2 x π )mm

S Value for pulse generator signals per revolution of motor shaft (P) =15

S Max. adjustable wire feed speed x 10 (M) = 25.0 x 10 = 250.

S Motor speed corresponding to max. speed (R) = (V /O) x N rpm

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S The time between the pulses from the pulse generator, indicated in

micro--seconds at the desired max. speed (the data can be found in the

specification of the drive unit used).

(T)= 60s

x 1 000 000

=60xO

x 1 000 000

RxP VxNxP

S The constant (K) is to be indicated so that K/T = max. adjustable value in the

display, K = T x M = 230 779

SCALE FACTOR WIRE = 230 779

Enter the values for SCALE FACTOR WIRE FEED in the same way as in example B

on page 15.

4.4 How to change languages

The different texts displayed on the control box are available in the following four

languages:

S English, German, Fr anch, Swedish.

The following groups of languages are available as accessories (see instruction

manual for the respective power source).

S English, German, F rench, Swedish

S English, Italian, Finnish, Norwegian

On delivery and after resetting the box, all texts displayed are in English.

Language

selection

S Press the MODE key

to get to the auxiliary fun ctio ns, and the following

display comes up:

S

P

r

e

s

t

h

e

s

o

f

t

k

e

y

S

P

ress

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P

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s

o

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y

language.

AUXILIARY FUNCTIONS

g

LANGUAGE "

ERROR LOG "

SHOW ACTUAL PARAMETER VALUES

SOFTWARE UPGRADE "

SOFTWARE KEY "

LAN--

GUAGE

ERROR

LOG

SHOW

PARA--

METER

SOFT--.

WARE

UPGR.

SOFT--

WARE

KEY

S Press the soft key next language and step to the desired language.

S

P

r

e

s

t

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e

s

o

f

t

k

e

y

S

P

ress

t

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ey

e

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o

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change language.

CHOSEN LANGUAGE: ENGLISH

g

AVAILABLE LANGUAGES

ENGLISH SVENSKA

DEUTSCH

FRANCAIS

CHANGE

LANG

QUIT

Result: All texts will fr om now on be in the new language (in this example Swedish).

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S

T

e

r

m

i

n

a

t

e

b

y

S

T

erm

i

na

t

e

b

y

T

e

r

m

i

n

a

t

e

b

y

pressing the soft key

VALT SPRÅK: SVENSKA

p

g

y

avbryt.

TILLGÄNGLIGA SPRÅK

ENGLISH SVENSKA

DEUTSCH

FRANCAIS

NÄSTA

SPRÅK

BYT

SPRÅK

AVBRYT

S Press the MODE key to return to the working area.

5 PROGRAM EDITING

5.1 Entering a parameter value

S Make sure the right group of parameters is displayed in the display by pressing

one of the five parameter keys.

S Enter a value in the digit box.

S Press the soft key of the desired parameter.

Note that the parameters always inherit the value from the previous sector if no

new value is entered.

5.2 Increasing/decreasing a parameter value

The parameter value to be altered must be shown in the digit box.

S Mark the desired parameter using one of the soft keys. The set value comes up

in the box.

S Press the PLUS

or the MINUS key .

5.3 Creating a new sector

A new sector is created by entering a new breakpoint into an existing sector.

S Enter a new value for the breakpoint of the new sector.

S Press the SECTOR key .

In doing this, a new sector is created which is a copy of the original sector, but with

another breakpoint and another sector number. The new sector is automatically

positioned in the right place in the program. This is determined by the value of the

new breakpoint.

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Creating a new sector during welding

Proceed as follows to create a new sector during the welding:

S Enter a value into one of the following parameter groups using the numerical

keys:

S Press the corresponding soft key.

A new sector is now automatically created.

5.4 Changing the breakpoint of a sector

Make sure the existing breakpoint value o f the sector is displayed in the digit box.

S Press the SECTOR key

.

The breakpoint value is now shown in the digit box.

S Enter the new breakpoint value.

S Press the SECTOR key

or

S Change the breakpoint value using the PLUS key

or the MINUS key .

5.5 Creating a transport sector

If you want to rotate the welding tool without welding within a sector, you can create

a transport sector. Sector 1 cannot function as a transport sector -- it can only

function as a delayed start.

Transport sector

S Enter a value for the breakpoint of the new sector using the numerical keys.

S Press the SECTOR key .

S Set the WELDING CURRENT

(the peak current) to 0.

NOTE! If the welding current value is inherited, the welding current value of the

following sector will also be 0. Don’t forget to change them to the right value.

All the other parameter values can remain.

Delayed start

Change the breakpoint of sector 1 in the following way in order to delay the start:

S Press the STEP key

and go to sector 1.

S Press the SECTOR key .

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S Enter the breakpoint, for example 0.100 instead of 0.000, using the numerical

keys.

S Press the SECTOR key

again.

5.6 Finding the home position

When the tube welding tools PRH and POC are used, it can sometimes be

necessary to return to the home position (start position), for example in the event of

a welding stop.

S Rotate the tool manually till it is within a tenth of a rotation to the left or right of

the home position. See also under the section “Manual Mode” on page 37.

S Press the START key

.

Once this is done, the welding tool automatically starts rotating to the home position,

and a welding sequence starts.

5.7 Entering a slope

A time slope or a sector slope can be indicated for the following parameter groups:

W elding current Rotation speed

Wire feed speed

Time slope

S Press the key for the parameter group in question.

S Mark the desired parameter using one of the soft keys.

S Enter the desired slope time value.

S Press the SLOPE key

.

Sector slope

To create a sector slope no time value is to be entered. A sector slope always goes

on from one breakpoint to the next one.

NOTE! In the Welding Current parameter group you cannot indicate a sector slope

when preheating is involved.

S Press the key for the parameter group in question.

S Mark the desired parameter using one of the soft keys.

S Press the SHIFT key

and the SLOPE key simultaneously, and a sector

slope is created.

GB

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ESAB LTS Programming Manual

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