Tweco 300Pi Transtig Welding Inverter - Manual (Page 29)

TRANSTIG 300Pi
Manual 0-5309 3-11 INSTALLATION, OPERATION AND SETUP
LIFT TIG and HF TIG Programming Mode
Programming Parameter Control Panel Display
Pre Flow
This parameter operates in 2T and
4T HF TIG mode only and is used to
provide gas to the weld zone prior to
striking the arc, once the torch trigger
switch has been pressed. This control
is used to dramatically reduce weld
porosity at the start of a weld.
Range is 0.0 to 5.0 seconds. Factory
default is 0.1 second.
(Pulse)
A-12103
Initial Current
This parameter operates in TIG modes
only and is used to set the start
current for TIG. In 4T mode the Initial
Current remains on until the torch
trigger switch is released after it has
been depressed. In 2T mode this is
the Initial Current for the Up Slope
current ramp.
Range is 5 to 315. Factory default is
30A.
(Pulse)
A-12104
Up Slope
This parameter operates in TIG modes
only and is used to set the time for the
weld current to ramp up from INITIAL
current to BASE current.
Range is 0.0 to 15.0 seconds. Factory
default is 1.0 second.
(Pulse)
A-12105