Lincoln Electric INVERTEC V205-T AC/DC Operator's Manual page 6

T AC/DC or V305-T AC/DC and will convert the machine
to a water-cooled system. Use a Coolarc 20 with the
V205-T AC/DC and a Coolarc 30 with the V305-T
AC/DC.
Disconnect the machine from the power line. On the
V205-T AC/DC, remove the small excess door on the
bottom of the machine and put the electrical plug of the
Coolarc 20 in the connector. On the V305-T AC/DC,
remove the left side panel of the machine and put the
electrical plug of the Coolarc 30 in the connector located
above the hole on the top shelf. Place the machine on
top of the Coolarc and ensure the correct position in the
prepared holes. Attach the machine to the Coolarc with
the supplied screws.
Controls and Operational Features
L1 - Voltage Warning Light: This green indicator is ON
when the machine is switched ON with the main switch.
L2 - Safety Warning Light: This yellow indicator is ON
when a thermal overheating or incorrect supply voltage
error occurs. When this indicator is ON, an alarm code
will flash on the display (D1). In this condition the
machine does not supply power, the output is OFF. If a
thermal overheating error occurs, leave the power
source ON and allow it to cool. Or, in the case of a
supply voltage error, press any button to resume
operation.
D1 - Display: Shows the welding current or the value of
the welding parameter chosen with pushbotton S4. It is
also used to display alarm or error messages and to
adjust the set-up parameters.
F1 - Current and Function Control: Pre-setting of the
welding current, welding parameters and set-up values.
This allows you to continuously adjust the current both in
TIG and in MMA welding. This current stays unchanged
when the supply and welding conditions vary within the
allowed ranges. In MMA welding, the presence of HOT-
START and ARC-FORCE means that the average
output current may be higher than that set at some
stages of the welding process. Allows you to change the
value, shown on the display (D1), of the parameter
selected with pushbotton S4. Allows you to specify the
required set-up line and to vary the value.
S1 - Mode Selection: Process selector. The LED
beside the symbol will light up to confirm the selection:
Stick Welding, DC TIG Welding, or AC TIG Welding.
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Start Current
Upslope
Weld Current
Downslope
Finish Current
Post Flow
Frequency
Peak %
Background
AC frequency
AC balance
6
S2 - Trigger Selection: Trigger mode selector. The
LED beside the symbol will light up to confirm the
selection: 4 Step operation or 2 Step operation. Refer to
section below on TIG Trigger Sequences for a complete
explanation of these operations.
S3 - Local/Remote Switch: Current control selector.
The LED beside the symbol will light up to confirm the
selection: Local Current Control (F1) or Remote Current
Control.
S4 - Set-up/Parameter Switch: Allows entry into the
set-up menu and parameter selection.
Parameter Selection
By pushing the pushbutton S4 (after the start up
procedure) you can select the following TIG parameters:
•
Start Current (A)
•
Upslope Time (sec)
•
Weld Current (A)
•
Downslope Time (sec)
•
Finish Current (A)
•
Postflow Time (sec)
Press and hold the pushputton S4 for 2 seconds to
select the following AC parameters:
•
AC/DC TIG Frequency (Hz)
•
Wave Balance
AC Frequency
If the pushbutton S4 is held down for more than 2
seconds the AC frequency (Hz) parameter is selected
and can be adjusted using the Current/Function Control
(F1). Pushing the pushbutton S4 again in a short period
of time, the AC balance (%) parameter is selected and
can be adjusted again using the Current/Function
Control (F1).
After few seconds without any changes, all the
parameters are confirmed and the display D1 shows the
welding current.
The parameter defaults and usable ranges are shown
here.
Parameter Value
Amp
Sec
Amp
Sec
Amp
Sec
Hz
%
Amp
Hz
%EN
Set-up Menu
To access the set-up menu start with the machine OFF.
Press and hold the parameter selection button (S4) and
turn the machine ON. In this mode you can now scroll
through the set-up menu numbers using the
current/function control (F1). Select a number in the
menu you want to change, then press the parameter
button (S4). Now you can change the values, using the
current/function control (F1). When the desired values
have been changed press the parameter selection
button (S4) again to save the new value. To exit this
Min Max Default
8 Max 15
0 10 0.2
6 Max 100
0 10 1
6 Max 8
0.2 60 5
0.1 500 0.5
5 95 50
1 Max 20
20 150 100
35 85 65