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.
TOCe
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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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