Tweco 186 DC Inverter - Manual (Page 44)

INSTALLATION, OPERATION AND SETUP 3-14 Manual 0-5237
186 AC/DC INVERTER INSTALLATION/SETUP
Programming Parameter Adjustment Device Display
Down Slope
This parameter operates in TIG
modes only and is used to set
the time for the weld current
to ramp down, after the torch
trigger switch has been pressed,
to crater current. This control is
used to eliminate the crater that
can form at the completion of a
weld.
V
SEC
%
Hz
Volts
0.0 to 25.0 seconds
Crater Current
This parameter operates in (4T)
TIG modes only and is used to
set the finish current for TIG.
The CRATER Current remains
ON until the torch trigger switch
is released after it has been
depressed.
Note: The maximum crater
current available will be limited to
the set value of the weld current.
Amps
5 to 200A (DC TIG mode)
30 to 200A (AC TIG mode)
10 to 200A (AC HF TIG mode)
Post Flow
This parameter operates in TIG
modes only and is used to adjust
the post gas flow time once
the arc has extinguished. This
control is used to dramatically
reduce oxidation of the tungsten
electrode.
V
SEC
%
Hz
Volts
0.0 to 60.0 seconds
AC Frequency
This parameter operates in AC
TIG mode only and is used to
set the frequency for the AC weld
current.
V
SEC
%
Hz
Volts
15 to 150 Hz