Rights reserved to alter specifications without notice.
TOCe
-- 2 --
GB
1INTRODUCTION
The manual describes the use of TA33 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.
1.1Control panel
Knob for setting data (current, voltage, material thickness or seconds)
Display
Choice of welding method TIGor MMA
Choice of TIG / MMA welding with alternating current, TIG / MMA welding
with direct current
Choice of HF startor LiftArct
Choice of 2--strokeor 4--stroke
bi17d1ea
-- 3 --
GB
Setting from paneland 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.
Choice of current indication (A) or seconds (s) during welding, in the display.
Indication of which unit of measurement is used (mm or inch).
Choice of parameter for material thickness slope down or gas post flow.
Indication of selected material thickness (mm/inch).
Indication of selected slope down time (s).
Indication of selected gas post flow time (s).
2TIG WELDING
2.1Settings
TIG AC/DC
FunctionSetting rangeIn steps ofDefault value
HF / LiftArc t
2/4--stroke
Gas pre flow time
Material thickness1)0.1 -- 7.3 mm0.1 mm2mm
Slope up--time1)0--9.9s0.1 s0.0 s
Slope down time0--10s0.1 s1.0 s
Gas post flow time0--25s0.1 s10.0 s
Current4 -- 220 A1A60 A
Active panelOFF or ON--ON
Remote control unitOFF or ON--OFF
Min current0--99%--30%
1)
These functions are hidden TIG functions, see description point 2.3.
2)
These functions cannot be changed while welding is in progress
2)
2)
1)
HF or LiftArct--LiftArct
2strokeor4stroke--2stroke
0--5s0.1 s0.5 s
bi17d1ea
-- 4 --
GB
2.2Symbol 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.
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.
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.
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.
bi17d1ea
-- 5 --
GB
LiftArct
The LiftArct function strikes the arc when the electrode is brought into contact with
the workpiece and then lifted away from it.
Striking t he arc with LiftArct. 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--flowSlope
up
Functions when using 2 stroke control of the welding torch.
Slope downGas 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--flowSlope
up
Slope downGas 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
bi17d1ea
-- 6 --
GB
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.
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.
2.3Hidden TIG functions
There are hidden functions in the control panel.
To access the functions, pressfor 5 seconds. T he 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.
FunctionSettings
A = gas pre--flow0--5s
b = slope up0--9,9
C = unit of measurement0 = inch, 1 = mm
I = min current0 -- 99%
To leave hidden functions, press
Gas pre--flow
for 5 seconds.
This controls the time during which shielding gas flows before the arc is struck.
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%.
bi17d1ea
-- 7 --
GB
3MMA WELDING
3.1Settings
FunctionSetting rangeIn steps ofDefault value
Current16 -- max A
Active panelOFF or ON--ON
Remote control unitOFF or ON--OFF
*)
The setting range is dependent on the power source used.
3.2Symbol 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.
*)
1A100 A
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.
During MMA welding, it is possible to weld with reversed polarity.
Select MMA weldingand 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.
bi17d1ea
-- 8 --
GB
4FAULT 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.
4.1List of fault codes
U0 = welding data unitU2 = power sourceU5 = AC--unit
U1 = cooling unitU4 = remote control unit
Fault codeDescriptionU0 U1 U2U4U5
4Power supply 5 Vxx
6High temperaturexxx
7High temperaturex
8Supply voltage 24V/15Vxx
9Supply voltage --11Vxx
12Communication error (warning)xxxx
14Communication error (bus off)x
15Messages lostx
16High open--circuit voltage VRDx
19Memory errorx
20High inductance in the welding circuitx
25Lost contact with AC--unitx
26Program operating faultx
29No cooling water flowxx
41Lost contact with the cooling unitx
bi17d1ea
-- 9 --
GB
4.2Fault 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 --11 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.
bi17d1ea
-- 1 0 --
GB
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.
5ORDERING SPARE PARTS
Spare parts may be ordered through your nearest ESAB dealer, see the last page of
this publication.