Lincoln Electric INVERTEC 300TPX Operator's Manual page 9

Mode Pushbutton:
This pushbutton changes the welding modes of the
machine:

Stick (SMAW)

Lift TIG (GTAW)

HF TIG (GTAW)

Spot TIG (GTAW)
The Spot TIG feature is selectable only if the "option
10" is previously enabled in the Setup Menu. See
"Setup menu" section for options enabling /
disabling.
Each welding mode is is detailed in the Operating
instruction section.
Trigger Mode Pushbutton:
This pushbutton changes the trigger sequence in TIG
welding mode:

2-step / 4-step with restart This option is not
selectable by the Trigger Pushbutton and, if
enabled, operates with 2 or 4 step mode:
This indicator will turn on if the restart option is
enabled for the current TIG trigger mode. Restart
can be enabled separately for 2-step and 4-step
modes from the Setup Menu. More information
about restart is available in the Operating instruction
section.

2-step

4-step

Bi-Level
Each trigger mode is detailed in the Operating instruction
section.
SEL Pushbutton:
The SELect pusbutton is used to scroll the TIG welding
parameters. At each pressure the relevant led is
switched on and the displays show the current value of
the parameter. If a parameter is disabled for the current
mode of working it will be skipped. The user can then
modify this value turning the Output Current knob. If no
change is made after a timeout (4s), the displays and
LEDs will revert to the default state, where the Output
Current knob sets the output current.
Memory Pushbuttons:
These pusbuttons allows to store (M) or recall (M)
TIG welding programs. 10 memory records (P01 to P10)
are available for the user.
English
To store [or recall] a record:
Store (M)
Store (M)
Keep pushed for 4s
The Memory pushbuttons are disabled during welding.
See "List of parameters and Factory stored programs"
section below for a complete list of factory stored
programs.
Pulsing Mode Pushbutton:
In the TIG welding modes, this pusbutton turns the
pulsing function ON. When active, the LED next to the
pusbutton is turned ON. In Stick welding mode, this
command is disabled.
When Pulse is active is possible to set Duty cycle (%),
Frequency (Hz) and Background (%) parameters.
During TIG welding is not possible switch ON or OFF the
Pulse command: if ON, during welding is possible
operates on the values of Duty, Frequency and
Background current.
Output Current Knob:
It is used to set the Output Current used during welding.
This knob is also a multi-purpose command: see the
"Operating Instruction" section for a description of how to
use this command for parameter selection.
V & A Display:
The right meter displays the preset welding current (A)
before welding and the actual welding current during
welding, and the left meter shown the voltage (V) at the
output leads.
A flashing dot on the Display indicates that the value
read is the average value of the previous welding time.
This feature shown the average value for 5seconds after
every welding time.
If a remote control is connected (the Remote LED is
ON), the left meter (A) indicates the preset and the
5
Recall (M)
01  10
Recall (M)
English