GB
Caddyt
TA33 AC/DC
Instruction manual
Valid from program version 1.020460 226 074 GB 081124
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 7......................................................
3 MMA WELDING 8....................................................
3.1 Settings 8..................................................................
3.2 Symbol and Function explanations 8...........................................
4 FAULT CODES 9.....................................................
4.1 List of fault codes 9..........................................................
4.2 Fault code descriptions 10.....................................................
5 ORDERING SPARE PARTS 11..........................................
ORDERING NUMBER 12.................................................
Rights reserved to alter specifications without notice.
TOCe
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1 INTRODUCTION
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.
1.1 Control panel
Knob for setting data (current, voltage, material thickness or seconds)
Display
Choice of welding method TIG or MMA
Choice of TIG / MMA welding with alternating current , TIG / MMA welding
with direct current
Choice of HF start or LiftArct
Choice of 2--stroke or 4--stroke
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Setting from panel and 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).
2 TIG WELDING
2.1 Settings
TIG AC/DC
Function Setting range In steps of Default value
HF / LiftArc t
2/4--stroke
Gas pre flow time
Material thickness1) 0.1 -- 7.3 mm 0.1 mm 2mm
Slope up--time1) 0--9.9s 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
Remote control unit OFF or ON -- OFF
Min current 0--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--5s 0.1 s 0.5 s
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2.2 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.
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.
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