Rights reserved to alter specifications without notice.
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1INTRODUCTION
The manual describes the use of TA33, TA34 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.
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1.1Control panel
Control panel TA3 3
Knob for setting data (current (A), time (s) or material thickness (mm/inch))
Display
Choice of welding method TIGor MMA
Choice of selection of HF startor LiftArct start
Choice of 2--strokeor 4--stroke
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 (A), time (s) or
material thickness (mm/inch)
Choise for selection of setting parameter,
material thickness, slope downor gas post flow.
Note! The pushbutton is also used for hidden functions, see on page 10.
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Control panel TA3 4
Knob for setting of current (A) or time (s)
Display
Choice of welding method TIGeller MMA
Choice of TIG-- / MMA--welding with direct currentor TIG--welding with
pulsed current
Choice of HF startor LiftArct
Choice of 2--strokeor 4--stroke
Setting from panel, welding data change with torch trigger switchor
connecting remote control unit
Display of VRD --function (reduced open--circuit voltage) is active or inactive.
(NOTE! This functions works for power sources where it is implemented)
Indication of which parameter is shown in the display current (A), voltage (V),
time (s)
Choice of current indication (A) or voltage indication (V) during welding, in the
display.
Indication of selected setting parameter, see page 7.
The right--hand button is also used for hidden functions, see page 10 and 12.
Buttoms for weld data memory settings, see page 13.
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2TIG WELDING
2.1Settings
FunctionSetting rangeTA33TA34
HF / LiftArc t
2/4--stroke
Gas pre flow time
Slope up--time
Slope down time0--10sxx
Gas post flow time0--25sxx
Current4--max
Active panelOFF or ON--x
Changing trigger dataOFF or ON--x
Remote control unitOFF or ON--x
Min current remote
Pulse current4--max
Pulse time
Micro pulse
Background current4--max
Background time
Micro pulse
Material thickness
2)
2)
1)
1)
1)
1)
1)
3)
HF or LiftArctxx
2strokeor4strokexx
0--5sxx
0--10sxx
3)
0--99%--x
3)
0.01 -- 2.5 s
0.001 -- 0.250 s
3)
0.01 -- 2.5 s
0.001 -- 0.250 s
30 A/mm in step of 0.1 mmx--
xx
xx
--x
--x
--x
1)
These functions are hidden Tig functions, see description point 2.3.
2)
These functions cannot be changed while welding is in progress
3)
The setting range is depended on the power source used.
2.2Symbol and Function explanations
VRD (Voltage Reduction 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.
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.
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TIG welding
TIG welding meltsthe metalof the workpiece, using an arc struck from a tungsten electrode, which does not melt itself. The weld pool and the electrode are protected by
shielding gas.
Direct current
A higher current gives a wider weld pool, with better penetration into the workpiece.
Pulsed current
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
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.
CurrentBackground time
Background
current
TIG welding with pulsing.
Pulse time
Pulse time
The time the pulse current is on during a pulse period.
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Pulse current
Time
GB
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.
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.
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.
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.
2--stroke
With 2 --stroke gas pre--flow ( if used) starts when the welding gun trigger switch is
pressed. The welding process then starts. Releasing the trigger switch stops welding entirely and starts gas post--flow (if selected).
Gas pre--flowSlope
up
Functions when using 2 stroke control of the welding torch.
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Slope downGas post--
flow
GB
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.
4--stroke
With 4 stroke, the gas pre--flow starts when the welding gun trigger switch is pressed
in and the arc is struck when it is released. The welding process continues until the
switch is pressed in again, the arc is extinguished when the switch is released the
gas post flow starts (if selected).
Gas pre--flowSlope
up
Functions when using 4 stroke control of the welding torch.
Slope downGas post--
flow
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). When the
trigger switch is released again (4) the arc is extinguished and any gas post flow
occurs.
Material thickness
The current is set automatically due to material thickness (mm/inch).
To increase or decrease the current, push on
until the symbols for material
thickness, slope down and gas post flow no longer are active and set the current.
Gas post--flow
This controls the time during which shielding gas flows after the arc is extinguished.
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 T IG welding.
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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.
2.3Hidden TIG functions
There are hidden functions in the control panel.
To access the functions, pressfor 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.
To leave hidden functions, pressfor 5 seconds.
Control panel TA33
FunctionSettings
A = gas pre--flow0--5s
b = slope up0--9,9
C = metric/inch0 = inch, 1 = mm
Control panel TA34
FunctionSettings
A = gas pre--flow0--5s
b = micro pulse0 = OFF; 1 = ON
I = min current0 -- 99%
Gas pre--flow
This controls the time during which shielding gas flows before the arc is struck.
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.
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%.
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3MMA WELDING
3.1Settings
FunctionSetting rangeTA33TA34
Current16 -- max. A
Hotstart
Arc force
Drop welding
Weld regulator ArcPlust
Active panelOFF or ON--x
Remote control unitOFF or ON--x
1)
These functions are hiddenfunctions, see description point 3.3.
2)
The setting range is dependent on the power source used.
1)
1)
1)
0--99--x
0--99--x
0=OFF or 1=ON--x
1)
1=OFF or 0=ON--x
3.2Symbol and Function explanations
2)
xx
VRD (Voltage Reduction 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.
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.
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.
3.3Hidden MMA functions
There are hidden functions in the control panel.
To access the functions, pressfor 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.
To leave hidden functions, pressfor 5 seconds.
Control panel TA34
FunctionSettings
C = Arc Force0--99
d = drop welding0 = OFF; 1 =ON
F = regulator type ArcPlust1 =ArcPlustII; 0 =ArcPlust
H = Hotstart0--99
I = min current0 -- 99%
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
Welding regulator is a 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.
SArc Plust(0) recommended for basic type of electrodes
SArc Plust II(1) recommended for rutile and cellulosa typ of electrodes
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.
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4WELDING DATA MEMORY
Two different welding data settings can be stored in the control panel memory.
Press buttonorfor 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 buttonor
.
The welding data memory has a back--up battery so that the settings remain even if
the machine has been switched off.
5FAULT 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.
5.1List of fault codes
U0 = welding data unitU2 = power source
U1 = cooling unitU4 = remote control unit
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5.2Fault code descriptions
Below are described event codes at which the user himself can take corrective
action. If any other code is shown, send for a service technician.
Fault
code
E6E7High temperature
E14Communication error (bus off)
E16High open--circuit voltage VRD
E29No cooling water flow
E41Lost contact with the cooling unit
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.
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.
6ORDERING SPARE PARTS
Spare parts may be ordered through your nearest ESAB dealer, see the last page of
this publication.