Tweco 130i Transarc Operating Manual - Manual (Page 22)

TRANSARC 130i
INSTALLATION, OPERATION AND SETUP 3-4 Manual 0-5283
Fail to safe operation
This welding power source is also protected by a special protection feature called “Fail to Safe Operation”
which is available in all welding modes. The output of the power source will be disabled and the fault
indicator will illuminate if the “Fail to Safe” protection has operated.. The “Fail to Safe” protection will not
automatically reset. The mains power switch must be turned off to reset the power source.
The display will also show error code E-1 if the “Fail to Safe” protection has operated.
A-11690
2. Digital Meter (Amps and Volts)
The digital meter is used to display the pre-set parameter values (when not welding) and actual output
current or voltage (when welding) of the power source. A long press (>2s) on the Multi Function Control
toggles between the display of amps and volts.
If you are in "amps display" mode, when not welding, long press of more than 2 seconds on the Multi
Function Control will set the 130i to "volts display" mode, the meter will show actual output volts for 5
seconds, then revert to display & adjustment of parameters. During welding, the meter will show actual
welding volts.
If you are in "volts display" mode, when not welding, long press of more than 2 seconds on the Multi
Function Control will set the 130i to "amps display" mode, the meter will revert to display & adjustment
of parameters. During welding, the meter will show actual welding amps.
At the completion of welding, the meter will hold the last recorded value for a period of approximately 10
seconds. During the hold time the display will flash to indicate the hold function is active. The meter will
hold the value until; (1) the Multi Function Control is adjusted in which case the unit will revert to preview
mode, (2) welding is recommenced, in which case actual welding amperage or voltage will be displayed,
or (3) a period of 10 seconds elapses following the completion of welding in which case the unit will
return to preview mode. The value displayed in preview mode and welding mode is steady (not flashing).
3. Multi Function Control
When not welding, the Multi Function Control is used to adjust all welding parameters, including welding
amps. A short press on the Multi Function Control will save the parameter value, then increment to the next
available parameter. The parameter LED will illuminate and the Multi Function Control will then adjust the
parameter. The parameter value is shown on the meter (figure 3-1, Item 2) and the LED's next to the meter
indicate if the parameter is Amps, Seconds, or %. Another press on the Multi Function Control will save the
parameter value, then increment to the next available parameter. During welding, adjustment of the Multi
Function Control will adjust the actual welding amps, no other parameters are adjustable during welding.
4. Parameter LED's (Weld Activity LED's)
When welding, the weld activity graph LED's will illuminate to indicate which weld sequence step is currently
active. When not welding, the parameter LED will illuminate to show which parameter is currently being
adjusted. In MMAW (Stick) mode, the adjustable parameters are weld current, hot start current & arc
force. In GTAW (Lift Tig) mode, the adjustable parameters are initial current, up slope time, weld current,
down slope time, crater current, post flow.