Lincoln Electric ASPECT 300 Operator's Manual page 11

D. Gas Inlet: Connector for the TIG shielding gas. Use
the supplied connector to connect the machine to the
gas source line. The gas source must have a
pressure regulator and flow gage installed.
E. Power supply socket for Coolarc: 400Vac socket.
Connect here the Coolarc cooling unit.
Controls and Operational Features
Machine Start-Up:
When the machine is turned ON an auto-test is
executed.
The Machine is ready to operate when on the Front
Control Panel lights up the "Power ON" LED, the "A"
LED (placed on the middle of the synoptic) with one of
the LED of the Welding "MODE" command. This is the
minimum condition: depending by the welding selection
others LEDs may be ON.
Front Panel Indicators and Controls
Power ON LED:
This LED blinks during the machine start-up or during
restart after idle mode and lights up steadily when the
machine is ready to operate.
If the Input Voltage Overrange protection becomes
active, the Power ON LED starts blinking and an error
code is shown on the displays. The machine restarts
automatically when the Input Voltage returns in the
correct range. For further detail read the Error Codes
and Troubleshooting section.
If the trigger is pushed before the unit is ready to weld,
or after a weld is completed in GTAW mode, the Power
ON LED will blink at a fast rate. Release the trigger to
restore normal operation.
English
Remote LED:
This indicator will turn on when a Remote command is
connected to the machine via the remote control
connector.
If a Remote command is connected to the Machine, the
Output Current knob operates in two different modes:
STICK and TIG:

STICK mode: with a Remote command connected
the output of the machine is ON. A Remote Amptrol
or Pedal are allowed (trigger is ignored).
Connecting the Remote command excludes the Output
Current Knob of the Machine's user interface. Through
the Remote command is available the full Output Current
Range.

TIG mode: in Local and remote mode the output of
the machine is OFF. A Trigger is necessary to
enable the output.
The Output Current range selectable from the Remote
command depends by the Machine's user interface
Output Current Knob. Eg.: if the Output Current is set to
100A with the Machine's user interface Output Current
Knob, the Remote command will adjust the Output
Current from a minimum of 5A to a maximum of 100A.
Remote Pedal: For a correct use, the "Menu GTAW" and
"Menu SYS" must be enabled in the setup menu:

2-step sequence is automatically selected

Upslope / Downslope ramps and Restart are
disabled.

Spot, Bi-Level and 4-step functions aren't selectable
(Normal operation is restored when the Remote
command is disconnected.)
Thermal LED:
This indicator will turn on when the machine is
overheated and the output has been disabled.
normally occurs when the duty cycle of the machine has
been exceeded. Leave the machine on to allow the
internal components to cool. When the indicator turns
off, normal operation is again possible.
9
This
English