GB
Caddy
®
A32, A33, A34
Instruction manual
Valid from program version 1.030460 449 174 GB 20120322
1 INTRODUCTION 3...................................................
1.1 Control panel A32 3.........................................................
1.2 Control panel A33 4.........................................................
1.3 Control panel A34 5.........................................................
2 MMA WELDING 6....................................................
2.1 Settings 6..................................................................
2.2 Symbol and Function explanations 6...........................................
2.3 Hidden functions MMA welding 7..............................................
3 TIG WELDING 8.....................................................
3.1 Settings 8..................................................................
3.2 Symbol and Function explanations 8...........................................
4 WELDING DATA MEMORY 9..........................................
5 FAULT CODES 10....................................................
5.1 List of fault codes 10..........................................................
5.2 Fault code descriptions 10.....................................................
ORDER NUMBER 11.....................................................
Rights reserved to alter specifications without notice.
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1 INTRODUCTION
The manual describes use of A32, A33 and A34 control panels.
For general information about operation see user's instructions 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.
NOTE! Differences in the panel function may occur, depending on in which product it
is installed.
Instruction manuals in other languages can be downloaded from the website,
www.esab.com.
1.1 Control panel A32
Display
Knob for setting the current
Choice of welding method MMA or TIG
Setting from panel or connecting remote control unit
Display of VRD function (reduced open-circuit voltage) .
Measured value in the display for welding current A, is arithmetic average value =
rectified average value.
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1.2 Control panel A33
Display
Indication of which parameter is shown in the display (current or percent)
Knob for setting data (current or percent)
Buttons for weld data memory settings. See title 4 .
Button for choosing parameters ”Hot start” or arc pressure ”Arc force”
when MMA welding
Choice of welding method MMA or TIG
Setting from panel and connecting remote control unit
Display of VRD function (reduced open-circuit voltage)
Measured value in the display for welding current A, is arithmetic average value =
rectified average value.
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1.3 Control panel A34
Display
Indication of which parameter is shown in the display (current, voltage or
percent)
Display of measurement value for current (A) or voltage (V) during welding.
Knob for setting data (current or percent)
Buttons for settings in welding data memory. See title 4 .
Button for choosing parameters ”Hot start” or arc pressure
”Arc force” when MMA welding
Choice of welding method MMA or TIG
Choice of electrode type ”Basic”, ”Rutile” or ”Cellulose” when MMA welding
Setting from panel and connecting remote control unit
Display of VRD function (reduced open-circuit voltage).
Measured value in the display for arc voltage V, and welding current A, is arithmetic
average value = rectified average value.
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2 MMA WELDING
2.1 Settings
Function Setting range A32 A33 A34 Default
value
Current 4 A - max
Active panel OFF or ON x x x ON
Remote control unit OFF or ON x x x OFF
Hot start 0 - 99% x
Arc force 0 - 99% x
Drop welding OFF or ON x
VRD - x x x -
1)
The setting range is dependent on the power source used.
2)
Hidden function
2.2 Symbol and Function explanations
1)
x x x 100
2)
2)
2)
x x 0
x x 5
2)
x
2)
x
OFF
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.
Setting current
A higher current produces a wider weld pool, with better penetration into the
workpiece.
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.
Hot Start
Increases the welding current during a fixed time at the start of the welding process.
Set the value of the hot start current by using the knob. This reduces the risk of
incomplete fusion at the start of the weld.
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.
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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. This 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.
Contact an authorised ESAB service technician to activate the function.
2.3 Hidden functions MMA welding
There are hidden functions in the control panel.
To access the functions in A32, use the method button, .
To access the functions in A33 and A34, hold button depressed for 5 seconds.
The display shows a letter and a value. The correct function is selected by pressing
the buttons. The knob is used to change the value of the selected function.
Function letter Function
C Arc Force
H Hotstart
d Drop welding
To leave the function in A32, hold the button depressed for 5 seconds. For
A33 and A34, hold the button depressed 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.
Hot Start
Increases the welding current during a fixed time at the start of the welding process.
Set the value of the hot start current by using the knob. This reduces the risk of
binding defects at the start of the weld.
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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.
3 TIG WELDING
3.1 Settings
Function Setting range A32 A33 A34 Default
value
Current 4 max
Active panel OFF or ON x x x ON
Remote control unit OFF or ON x x x OFF
VRD - x x x -
1)
The setting range is dependent on the power source used.
1)
x x x 60 A
3.2 Symbol and Function explanations
TIG welding
TIG welding melts the metal of the workpiece, using an arc struck from a tungsten elec
trode, which does not melt itself. The weld pool and the electrode are protected by
shielding gas.
”LiveTig start”
With “LiveTig start” the arc strikes when the tungsten electrode is brought into
contact with the workpiece and then lifted away from it.
Active panel
Settings are made from the control panel.
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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.
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. This 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.
Contact an authorised ESAB service technician to activate the function.
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 so that the settings remain even if the
machine has been switched off.
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5 FAULT CODES
Fault codes are 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, for example
U 0.
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 unit is activated, deactivate the remote control unit by
pressing to remove the fault indication.
5.1 List of fault codes
Unit number:
U 0 = welding data unit U 2 = power source
U 4 = remote control unit
5.2 Fault code descriptions
The fault codes that the user can correct themselves are given below. If a different
code appears, call a service technician.
Fault
code
E 6 High temperature
E 14 Communication error (bus off)
E 16 High open-circuit voltage
E 19 Memory error
Description
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.
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.
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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A32, A33, A34
Order number
Ordering no. Denomination
0460 250 883 Control panel Caddyt A32
0460 250 888 Control panel Caddyt A33
0460 250 885 Control panel Caddyt A34
File name Denomination
0460 449 170 Instruction manual SE
0460 449 171 Instruction manual DK
0460 449 172 Instruction manual NO
0460 449 173 Instruction manual FI
0460 449 174 Instruction manual GB
0460 449 175 Instruction manual DE
0460 449 176 Instruction manual FR
0460 449 177 Instruction manual NL
0460 449 178 Instruction manual ES
0460 449 179 Instruction manual IT
0460 449 180 Instruction manual PT
0460 449 181 Instruction manual GR
0460 449 182 Instruction manual PL
0460 449 183 Instruction manual HU
0460 449 184 Instruction manual CZ
0460 449 185 Instruction manual SK
0460 449 186 Instruction manual RU
0460 449 187 Instruction manual US
0460 449 189 Instruction manual EE
0460 449 190 Instruction manual LV
0460 449 191 Instruction manual SI
0460 449 192 Instruction manual LT
0460 449 193 Instruction manual CN
Instruction manuals are available on the Internet at www.esab.com
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© ESAB AB 2008
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
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Brussels
Tel: +32 2 745 11 00
Fax: +32 2 745 11 28
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Tel/Fax: +359 2 974 42 88
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Tel: +45 36 30 01 11
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Tel: +358 9 547 761
Fax: +358 9 547 77 71
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Tel: +33 1 30 75 55 00
Fax: +33 1 30 75 55 24
GERMANY
ESAB GmbH
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Tel: +49 212 298 0
Fax: +49 212 298 218
GREAT BRITAIN
ESAB Group (UK) Ltd
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Tel: +44 1992 76 85 15
Fax: +44 1992 71 58 03
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Andover
Tel: +44 1264 33 22 33
Fax: +44 1264 33 20 74
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Tel: +36 1 20 44 182
Fax: +36 1 20 44 186
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Tel: +39 02 97 96 8.1
Fax: +39 02 97 96 87 01
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Tel: +31 33 422 35 55
Fax: +31 33 422 35 44
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AS ESAB
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Fax: +47 33 11 52 03
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North and South America
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CONARCO
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Fax: +54 11 4 753 6313
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Contagem-MG
Tel: +55 31 2191 4333
Fax: +55 31 2191 4440
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ESAB Group Canada Inc.
Missisauga, Ontario
Tel: +1 905 670 02 20
Fax: +1 905 670 48 79
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Tel: +52 8 350 5959
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Tel: +1 843 669 44 11
Fax: +1 843 664 57 48
Asia/Pacific
AUSTRALIA
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Fax: +61 7 3711 2328
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Shanghai
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Fax: +86 21 6566 6622
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Tel: +91 33 478 45 17
Fax: +91 33 468 18 80
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Fax: +62 21 461 2929
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Fax: +81 45 670 7001
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USJ
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Fax: +603 8023 0225
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Fax: +971 4 887 22 63
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EGYPT
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Tel: +20 2 390 96 69
Fax: +20 2 393 32 13
SOUTH AFRICA
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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
www.esab.com
110915© ESAB AB
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