Fault Symbols - Migatronic PI 350 DC Manual De Instrucciones

Gas errors
Gas errors are caused by too low or too
high pressure on the gas flow or too high back-
pressure from the hose.
Check that the pressure on the gas flow is higher
than 2 bar or 5 l/min. and lower than 6 bar or
27 l/min.
The gas error function can be deactivated by
setting the manual gas flow at 27 l/min.
Cancel gas errors by pressing the
Panel lock
Text is displayed, when panel lock is
activated in the user menu (ref. paragraph "user
menu").

Fault symbols

The indicator next to the icon blinks when
other types of errors occur. At the same time a
fault symbol is shown in the display.
Selected error codes:
(The error code can be reset by pressing the
MMA-key pad.)
Torch cooling fault
Cooling fault is shown in case of no
circulation of the cooling liquid due to faulty
connection or choking.
Check that the cooling hoses are correctly
connected, top up the water tank and check
welding hose and branches.
Mains supply fault
The icon will be shown, when the
mains voltage is too high. E04-01 will be shown,
when the mains voltage is to low.
Connect the welding machine to 400V AC,
+/-15% 50-60Hz.
OTHER TYPES OF FAULTS
If other fault symbols are shown in the display,
the machine shall be switched off and then on to
dispose of the symbol.
If the fault symbol is shown repeatedly, repair of
the power source is required. Contact your
distributor with information of the fault
TIG welding
key twice.
relative key to select the parameter. The relevant LED will
illuminate.
arc is established. Variable 0-10 sec. In the LIFTIG process
the period is the time until the torch is lifted away from the
workpiece.
value stated in the Start Amp parameter. Start Amp is set
as a percentage of the required welding current and is
variable between 1-200% of the welding current. Please
note that values higher than 100% generate a Start Amp
bigger than welding current.
welding current is increased in linear fashion from the value
stated in the Start Amp parameter to the required welding
current. The duration of this slope-up time is variable
0-20 sec. in steps of 0.1 sec.
releasing quickly the torch trigger. Please note that values
bigger than 100% generate a secondary current bigger
than welding current.
During this stage current is reduced from welding current to
Final Amp over a period of time called the slope-down time
and variable 0-20 sec. in steps of 0.1 sec.
Final Amp parameter. In 4-times it is possible to continue in
Final Amp mode until the trigger is released. Final Amp is
stated as a percentage of the required welding current and
is variable between 1-90% of the welding current.
23
TIG welding
The parameters can be adjusted with the control
knob after they are shown on the display. Press the
Pre-flow [s]
Pre-flow is the period of time for which gas flows
after the torch switch is pressed and before the HF
Start Amp [A%]
Immediately after the arc has been established,
the machine regulates the welding current to the
Slope-up [s]
Once the arc has been established, the welding
process enters a slope-up stage during which the
Second current level
Adjustable from 10 to 200% of welding current. It
is activated in four-times only by pressing and
Slope-down [s]
When welding has stopped by activating the
trigger, the machine enters a slope-down stage.
Final Amp [A%]
The slope-down stage is completed when the
current level has fallen to the value stated in the