ESAB Caddy TA34 AC/DC Instruction manual

GB

Caddyt

TA34 AC/DC

Instruction manual

Valid from program version 1.020460 227 074 GB 081204

1 INTRODUCTION 3...................................................

1.1 Control panel 3.............................................................

2 TIG WELDING 4.....................................................

2.1 Settings 4..................................................................

2.2 Symbol and Function explanations 5...........................................

2.3 Hidden TIG functions 10......................................................

3 MMA WELDING 11....................................................

3.1 Settings 11..................................................................

3.2 Symbol and Function explanations 1 1...........................................

3.3 Hidden MMA functions 12.....................................................

4 WELDING DATA MEMORY 13..........................................

5 FAULT CODES 13.....................................................

5.1 List of fault codes 14..........................................................

5.2 Fault code descriptions 15.....................................................

6 ORDERING SPARE P ARTS 16..........................................

ORDERING NUMBER 17.................................................

Rights reserved to alter specifications without notice.

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1 INTRODUCTION

The manual describes the use of TA34 AC/DC control panel.

For general information about operation see instruction manual for the power source.

When mains power is supplied the unit runs a self diagnosis of the
LEDs and the display, the program version is displayed and in this
example the program version is 0.18.

Instruction manuals in other languages can be downloaded from the website,
www.esab.com.

1.1 Control panel

Knob for setting data (current, voltage, percentage, seconds, or frequency)

Display

Choice of welding method TIG or MMA

Choice of TIG welding with alternating current , TIG / MMA-- welding with

direct current or TIG welding with pulsed current

Choice of HF start or LiftArct

Choice of 2--stroke or 4--stroke

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Setting from panel , program change with torch trigger switch or

connecting remote control unit

Display of VRD function (reduced open--circuit voltage) is active or inactive.

(NOTE! This function works for power sources where it is implemented.)

Indication of which parameter is shown in the display (current, voltage,

percentage, seconds or frequency)

Choice of current indication (A) or voltage indication (V) during welding, in the

display

Indication of selected setting parameter, see page 6. The right--hand button is

also used for hidden functions

Buttons for weld data memory settings. See page 13.

2 TIG WELDING

2.1 Settings

TIG without pulsing AC/DC and TIG with pulsing DC

Function Setting range In steps of: Default value

HF / LiftArc t

2/4--stroke

Gas pre flow time

Slope up--time 0--10s 0.1 s 0.0 s

Slope down time 0--10s 0.1 s 1.0 s

Gas post flow time 0--25s 0.1 s 10.0 s

Current 4 -- 220 A 1A 60 A

Active panel OFF or ON -- ON

Changing trigger data OFF or ON -- OFF

Remote control unit OFF or ON -- OFF

Min current 0--99% -- 30%

TIG with AC

2)

2)

1)

HF or LiftArct -- LiftArct

2strokeor4stroke -- 2stroke

0--5s 0.1 s 0.5 s

Function Setting range In steps of: Default value

Balance setting 50 -- 98 %* 1% 50 %

Frequency setting 10 -- 152 Hz 1--3Hz 65 Hz

Electrode preheating 0 -- 100 1 --

*) Depending on frequency setting.

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TIG with pulsing DC

Function Setting range In steps of: Default value

Pulse current 4 -- 220 A 1A 60 A

Pulse time

Micro pulse

Background current 4 -- 220 A 1A 20 A

Background time

Micro pulse

1)

These functions are hiddenTIG functions, see description point 2.3.

2)

These functions cannot be changed while welding is in progress

1)

1)

2.2 Symbol and Function explanations

VRD (Voltage Reducing Device)

0.01 -- 2.5 s

0.001 -- 0.250 s

0.01 -- 2.5 s

0.001 -- 0.250 s

0.01 s

0.001 s

0.01 s
0,001 s

1.0 s

1.0 s

The VRD function ensures that the open--circuit voltage does not exceed 35 V when
welding is not being carried out. T his is indicated by a lit VRD LED.

The VRD function is blocked when the system senses that welding has started.

If the VRD function is activated and the open--circuit voltage exceeds the 35 V limit,
this is indicated by an error message (16) appearing in the display and welding
cannot be started whilst the error message is displayed.

The VRD function is activated in power sources delivered with Australian mains plug.
For other power sources contact an authorised ESAB service technician to activate
the function.

Note! The VRD function works for power sources where it is implemented.

TIG welding

TIG welding melts the metal of the workpiece, using an arc struck from a tungsten elec­trode, which does not itself melt. The weld pool and the electrode are protected by
shielding gas.

Alternating current

The advantages of alternating current are reduced risk of magnetic arc blow and
good oxide break--up capacity when welding aluminium.

Direct current

A higher current produces a wider weld pool, with better penetration into the workpiece.

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Pulsed current (only DC)

Pulsing is used for improved control of the weld pool and the solidification process.
The pulse frequency is set so slow that the weld pool has time to solidify at least
partially between each pulse. In order to set pulsing, four parameters are required:
pulse current, pulse time, background current and background time.

Parameter settings

1. Slope up

2. Welding current

3. Pulse time

4. Background current

5. Background time

6. Slope down

7. Gas post flow time

8. Balance

9. Frequency

10. Electrode preheating

Slope up

The slope up function means that, when the TIG arc strikes, the current rises slowly
to the set value. This provides ‘gentler’ heating of the electrode, and gives the welder
a chance to position the electrode properly before the set welding current is reached.

Pulse current

The higher of the two current values in the event of pulsed current.

Current

Background ti-

me

Pulse current

Background cur­rent

TIG welding with pulsing.

Pulse time

Time

Pulse time

The time the pulse current is on during a pulse period.

Background current

The lower of the two current values in the event of pulsed current.

Background time

Time for background current which, along with the time for pulse current, gives the
pulse period.

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Slope down

TIG welding uses “slope down”, by which the current falls ’slowly’ over a controlled
time, to avoid craters and/or cracks. when a weld is finished.

Gas post--flow

This controls the time during which shielding gas flows after the arc is extinguished.

Balance

Setting the balance between the positive ( +) electrode and negative (--) electrode
half period during alternating current welding (AC).

Lower balance value produces more heat on the electrode and better oxide
break--up on the workpiece.

Higher balance value produces more heat to the workpiece and better penetration.

Frequency

Lower frequency (alternating current) transfers more heat to the workpiece and
produces a wider weld pool.

Higher frequency produces a narrower arc with higher arc force (narrower weld
pool).

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Electrode preheating

ungsten electrode

Ø Colour Type Ar Ar + 30%He

1,6 Green WP -- --

1,6 Green WP 30 35

1,6 Black WL10 20 20

1,6 Black WL10 30 35

2,4 Green WP 45 --

2,4 Green WP 55 60

2,4 Black WL10 40 40

2,4 Black WL10 45 50

3,2 Green WP 55 --

3,2 Green WP 65 65

Setting value

Shielding gas

3,2 Black WL10 60 60

3,2 Black WL10 70 70

4,0 Green WP 70 75

4,0 Green WP 80 85

4,0 Black WL10 65 65

4,0 Black WL10 70 75

WP = Pure tungsten electrode
WL10 = Lantha alloyed tungsten electrode

HF

The HF function strikes the arc by means of a spark from the electrode to the
workpiece as the electrode is brought closer to the workpiece.

LiftArct

The LiftArct function strikes the arc when the electrode is brought into contact with
the workpiece and then lifted away from it.

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Striking the arc with the LiftArc functiont. Step 1: the electrode is touched on to the workpiece. Step
2: the trigger switch is pressed, and a low current starts to flow. Step 3: the welder lifts the electrode
from the workpiece: the arc strikes, and the current rises automatically to the set value.

2stroke

Gas pre--flow Slope

up

Functions when using 2 stroke control of the welding torch.

Slope down Gas post--

flow

In the 2 stroke control mode, pressing the TIG torch trigger switch (1) starts gas
pre--flow (if used) and strikes the arc. The current rises to the set value (as controlled
by the slope up function, if in operation). Releasing the trigger switch (2) reduces the
current (or starts slope down if in operation) and extinguishes the arc. Gas post--flow
follows if it is in operation.

4stroke

Gas pre--flow Slope

up

Slope down Gas post--

flow

Functions when using 4 stroke control of the welding torch.

In the 4 stroke control mode, pressing the trigger switch (1) starts gas pre--flow (if
used). At the end of the gas pre--flow time, the current rises to the pilot current (a few
ampere), and the arc is struck. Releasing the trigger switch (2) increases the current
to the set value (with slope up, if in use). When the trigger switch is pressed in (3)
the current returns to the set pilot current (with ”slope down” if in use).

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When the trigger switch is released again (4) the arc is extinguished and any gas
post flow occurs.

Active panel

Settings are made from the control panel.

Changing trigger data

This function permits changing between different welding data memories by a double
press on the trigger of the welding gun.

Only applies for TIG welding.

Remote control unit

Settings are made from the remote control unit.

The remote control unit must be connected to the remote control unit socket on the
machine before activation. When the remote control unit is activated the panel is
inactive.

2.3 Hidden TIG functions

There are hidden functions in the control panel.

To access the functions, press for 5 seconds. The display shows a letter and
a value. Select function by pressing the right arrow. The knob is used to change the
value of the selected function.

Function Settings
A = gas pre--flow 0--5s
b = micro pulse 0 = OFF; 1 = ON
I = min current 0 -- 99%

To leave hiddenfunctions, press

Gas pre--flow

This controls the time during which shielding gas flows before the arc is struck.

for 5 seconds.

Micro pulse

In order to select micro pulse, the machine must be in the pulsed current function

. The value for pulse time and background current is normally 0.01 – 2.50
seconds. By using the micro pulse, the time can go down to 0.001 seconds. When
the micro pulse function is active, times that are shorter than 0.25 seconds are
shown in the display without decimal points.

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Min current

Used to set the minimum current for the remote control T1 Foot CAN.

If the max current is 100 A and the min current is to be 50 A, set the concealed
function min current to 50%.

If the max current is 100 A and the min current is to be 90 A, set the min current to
90%.

3 MMA WELDING

3.1 Settings

Function Setting range In steps of: Default value

Current 16 -- max. A

Hotstart

Arc force

Drop welding

Weld regulator ArcPlust

Active panel OFF or ON -- ON

Remote control unit OFF or ON -- OFF

1)

1)

1)

0--99 1 0

0--99 1 5

0=OFF or 1=ON -- OFF

1)

1=OFF or 0=ON -- ON

2)

1A 100 A

1)

These functions are hiddenfunctions, see description point 3.3.

2)

The setting range is dependent on the power source used.

3.2 Symbol and Function explanations

VRD (Voltage Reducing Device)

The VRD function ensures that the open--circuit voltage does not exceed 35 V when
welding is not being carried out. T his is indicated by a lit VRD LED.

The VRD function is blocked when the system senses that welding has started.

If the VRD function is activated and the open--circuit voltage exceeds the 35 V limit,
this is indicated by an error message (16) appearing in the display and welding
cannot be started whilst the error message is displayed.

The VRD function is activated in power sources delivered with Australian mains plug.
For other power sources contact an authorised ESAB service technician to activate
the function.

Note! The VRD function works for power sources where it is implemented.

MMA welding

MMA welding may also be referred to as welding with coated electrodes. Striking the
arc melts the electrode, and its coating forms protective slag.

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During MMA welding, it is possible to weld with reversed polarity.

Select MMA welding and then press .

Active panel

Settings are made from the control panel.

Remote control unit

Settings are made from the remote control unit.

The remote control unit must be connected to the remote control unit socket on the
machine before activation. When the remote control unit is activated the panel is
inactive.

3.3 Hidden MMA functions

There are hiddenfunctions in the control panel.

To access the functions, press for 5 seconds. The display shows a letter and
a value. Select function by pressing the right arrow. The knob is used to change the
value of the selected function.

Function Settings
C = Arc Force 0--99
d = drop welding 0 = OFF; 1 = ON
F = regulator type ArcPlust 0 = OFF; 1 = ON
H = Hotstart 0--99

To leave hidden functions, press for 5 seconds.

Arc Force

The arc force is important in determining how the current changes in response to a
change in the arc length. A lower value gives a calmer arc with less spatter.

Drop welding

Drop welding can be used when welding with stainless electrodes. The function
involves alternately striking and extinguishing the arc in order to achieve better
control of the supply of heat. The electrode needs only to be raised slightly to
extinguish the arc.

Welding regulator ArcPlust

Welding regulator ArcPlust is a new type of control that produces a more intense,
more concentrated and calmer arc. It recovers more quickly after a spot
short--circuit, which reduces the risk of the electrode becoming stuck. Most welding
applications obtain the best results with ArcPlust ON (0).

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Hot Start

Hot start increases the weld current for an adjustable time at the start of welding,
thus reducing the risk of poor fusion at the beginning of the joint.

4 WELDING DATA MEMORY

Two different welding data programs can be stored in the control panel memory.

Press button or for 5 seconds to store the welding data in the
memory. The welding data is stored when the green indicator lamp starts to flash.

To switch between the different welding data memories press button or

.

The welding data memory has a back--up battery so that the settings remain even if
the machine has been switched off.

5 FAULT CODES

The fault code is used to indicate that a fault has occurred in the equipment. It is
indicated in the display by an E followed by a fault code number.

A unit number is displayed to indicate which unit has generated the fault.

Fault code numbers and unit numbers are shown alternately.

If several faults have been detected only the code for the last occurring fault is
displayed. Press any function button or turn the knob to remove the fault indication
from the display.

NOTE! If the remote control is activated, deactivate the remote control by pressing

to remove the fault indication.

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5.1 List of fault codes

U0 = welding data unit U2 = power source U5 = AC--unit
U1 = cooling unit U4 = remote control unit

Fault code Description U0 U1 U2 U4 U5

4 Power supply 5 V x x

6 High temperature x x x

7 High temperature x

8 Supply voltage 24V/15V x x

9 Supply voltage --11V x x

12 Communication error (warning) x x x x

14 Communication error (bus off) x

15 Messages lost x

16 High open--circuit voltage VRD x

19 Memory error x

20 High inductance in the welding circuit x

25 Lost contact with AC--unit x

26 Program operating fault x

29 No cooling water flow x x

41 Lost contact with the cooling unit x

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5.2 Fault code descriptions

Fault
code

E4
U0
U5

E6
U1
U2
U5

E7U5High temperature

E8
U1
U5

E9
U1
U5

E12

U0
U1
U4
U5

E14U0Communication error (bus off)

E15U0Communication problems (lost message)

E16U2High open--circuit voltage VRD

E19U0Memory error

Description

5 V power supply low

The power supply voltage is too low.
The current welding process is stopped and starting is prevented.
Action: Turn off the mains power supply to reset the unit. Send for a service technician if

the fault persists.

High temperature

The thermal overload cut--out has tripped.
The current welding process is stopped and cannot be restarted until the temperature has

fallen.
Action: Check that the cooling air inlets or outlets are not blocked or clogged with dirt.

Check the duty cycle being used, to make sure that the equipment is not being overloaded.

The thermal overload cut--out has tripped.
The current welding process is stopped and cannot be restarted until the temperature has

fallen.
Action: Check that the cooling air inlets or outlets are not blocked or clogged with dirt.

Check the duty cycle being used, to make sure that the equipment is not being overloaded.

Faulty 24 V/15 V supply voltage

The supply voltage is too high or too low.
The current welding process is stopped and starting is prevented.
Action: Turn off the mains power supply to reset the unit. Send for a service technician if

the fault persists.

Faulty 24 V/15 V supply voltage

The supply voltage is too high or too low.
The current welding process is stopped and starting is prevented.
Action: Turn off the mains power supply to reset the unit. Send for a service technician if

the fault persists.

Communication error (warning)

Less serious interference on the CAN bus.
Action: Check that there are no faulty units connected on the CAN bus. Check the cables.

Send for a service technician if the fault persists.

Serious interference on the CAN bus.
Action: Check that there are no faulty units connected on the CAN bus. Check the cables.

Send for a service technician if the fault persists.

The system’s CAN bus has been overloaded.
Action: Send for a service technician if the fault persists.

Open circuit voltage has been too high.
Action: Turn off the mains power supply to reset the unit. Send for a service technician if

the fault persists.

Content of existing memory is incorrect. Basic data will be used.
Action: Turn off the mains power supply to reset the unit. Send for a service technician if

the fault persists.

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Fault
code

E20U2High inductance in the welding circuit

E25U0Lost contact with AC--unit

E26U0Program operating fault

E29

U0
U1

E41U0Lost contact with the cooling unit

Description

The power source cannot produce the desired current because the measured inductance
in the welding circuit is too high. The fault indication is reset if the inductance reading
receives a sufficiently low value at weld start. Resetting can also be achieved by turning off
the power.

Action: Use shorter welding cables and ensure that the cables are not coiled up. Place the
welding cable and connector cable next to each other. If possible, the inductance can be
reduced by welding with a shorter arc

Send for a service technician if the fault persists.

The control panel has lost contact with the AC unit.
The current welding process stops.
Action: Send for a service technician if the fault persists.

Something has prevented the processor from performing its normal tasks in the program.
The program restarts automatically. The current welding process will be stopped. This fault

does not disable any functions.

Action: Send for a service technician if the fault persists.
No cooling water flow

The flow monitor switch has tripped.
The current welding process is stopped and starting is prevented.
Action: Check the cooling water circuit and the pump.

The welding data unit has lost contact with the cooling unit. The welding process stops.

Action: Check the wiring. If the fault persists, send for a service technician.

6 ORDERING SP ARE PARTS

Spare parts may be ordered through your nearest ESAB dealer, see the last page of
this publication.

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TA34 AC/DC

Ordering number

Ordering no. Denomination

0460 250 880 Control panel Caddyt TA34 AC/DC
0460 227 070 Instruction manual SE
0460 227 071 Instruction manual DK
0460 227 072 Instruction manual NO
0460 227 073 Instruction manual FI
0460 227 074 Instruction manual GB
0460 227 075 Instruction manual DE
0460 227 076 Instruction manual FR
0460 227 077 Instruction manual NL
0460 227 078 Instruction manual ES
0460 227 079 Instruction manual IT
0460 227 080 Instruction manual PT
0460 227 081 Instruction manual GR
0460 227 082 Instruction manual PL
0460 227 083 Instruction manual HU
0460 227 084 Instruction manual CZ
0460 227 085 Instruction manual SK
0460 227 089 Instruction manual EE
0460 227 090 Instruction manual LV
0460 227 091 Instruction manual SL
0460 227 092 Instruction manual LT
0460 227 027 Instruction manual RU, GB

0459 839 014 Spare parts list

Instruction manuals and the spare parts list are available on the Internet at www.esab.com

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NOTES

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ESAB subsidiaries and representative offices

Europe

AUSTRIA

ESAB Ges.m.b.H
Vienna--Liesing
Tel: [phone]
Fax: [phone]

BELGIUM

S.A. ESAB N.V.
Brussels
Tel: [phone]
Fax: [phone]

THE CZECH REPUBLIC

ESAB VAMBERK s.r.o.
Vamberk
Tel: [phone]
Fax: [phone]

DENMARK

Aktieselskabet ESAB
Herlev
Tel:[phone]
Fax:[phone]

FINLAND

ESAB Oy
Helsinki
Tel: [phone]
Fax: [phone]

FRANCE

ESAB France S.A.
Cergy Pontoise
Tel:[phone]
Fax:[phone]

GERMANY

ESAB GmbH
Solingen
Tel: [phone]
Fax: [phone]

GREAT BRITAIN

ESAB Group (UK) Ltd
Waltham Cross
Tel: [phone]
Fax: [phone]

ESAB Automation Ltd
Andover
Tel: [phone]
Fax: [phone]

HUNGARY

ESAB Kft
Budapest
Tel:[phone]
Fax:[phone]

ITALY

ESAB Saldatura S.p.A.
Mesero (Mi)
Tel:[phone]
Fax:[phone]

THE NETHERLANDS

ESAB Nederland B.V.
Amersfoort
Tel: [phone]
Fax: [phone]

NORWAY

AS ESAB
Larvik
Tel:[phone]
Fax:[phone]

POLAND

ESAB Sp.zo.o.
Katowice
Tel: [phone]
Fax: [phone]

PORTUGAL

ESAB Lda
Lisbon
Tel: [phone]
Fax: [phone]

SLOVAKIA

ESAB Slovakia s.r.o.
Bratislava
Tel:[phone]
Fax:[phone]

SPAIN

ESAB Ibérica S.A.
Alcalá de Henares (MADRID)
Tel: [phone]
Fax: [phone]

SWEDEN

ESAB Sverige AB
Gothenburg
Tel:[phone]
Fax:[phone]

ESAB international AB
Gothenburg
Tel:[phone]
Fax:[phone]

SWITZERLAND

ESAB AG
Dietikon
Tel: [phone]
Fax: [phone]

North and South America

ARGENTINA

CONARCO
Buenos Aires
Tel: [phone]
Fax: [phone]

BRAZIL

ESAB S.A.
Contagem--MG
Tel: [phone]
Fax: [phone]

CANADA

ESAB Group Canada Inc.
Missisauga, Ontario
Tel: [phone]
Fax: [phone]

MEXICO

ESAB Mexico S.A.
Monterrey
Tel: [phone]
Fax: [phone]

USA

ESAB Welding & Cutting Products
Florence, SC
Tel: [phone]
Fax: [phone]

Asia/Pacific

CHINA

Shanghai ESAB A/P
Shanghai
Tel: [phone]
Fax: [phone]

INDIA

ESAB India Ltd
Calcutta
Tel: [phone]
Fax: [phone]

INDONESIA

P.T. ESABindo Pratama
Jakarta
Tel: [phone]
Fax: [phone]

JAPAN

ESAB Japan
To kyo
Tel: [phone]
Fax: [phone]

MALAYSIA

ESAB (Malaysia) Snd Bhd
USJ
Tel: [phone]
Fax: [phone]

SINGAPORE

ESAB Asia/Pacific Pte Ltd
Singapore
Tel:[phone]
Fax: [phone]

SOUTH KOREA

ESAB SeAH Corporation
Kyungnam
Tel: [phone]
Fax: [phone]

UNITED ARAB EMIRATES

ESAB Middle East FZE
Dubai
Tel: [phone]
Fax: [phone]

Representative offices

BULGARIA

ESAB Representative Office
Sofia
Tel/Fax: [phone]

EGYPT

ESAB Egypt
Dokki--Cairo
Tel: [phone]
Fax: [phone]

ROMANIA

ESAB Representative Office
Bucharest
Tel/Fax: [phone]

RUSSIA

LLC ESAB
Moscow
Tel: [phone]
Fax: [phone]

LLC ESAB
St Petersburg
Tel: [phone]
Fax: [phone]

Distributors

For addresses and phone
numbers to our distributors in
other countries, please visit our
home page

www.esab.com

ESAB AB
SE--695 81 LAXÅ
SWEDEN
Phone [phone]

www.esab.com

081016