Vector Welding C-Series Operating Instructions Manual page 15

AC/DC SERIES EQUIPMENT
Operation
Typically from 1 to 10 PPS. Provides a heating
and cooling effect on the weld puddle and can
reduce distortion by lowering the average
amperage. This heating and cooling effect also
produces a distinct ripple pattern in the weld
bead. The relationship between pulse frequency
and travel speed determines the distance
between the ripples. Slow pulsing can also be
coordinated with filler metal addition and
increase overall control of the weld puddle
3. Trigger Mode Control Button (HF TIG and LIFT TIG Mode only)
The trigger mode control is used to switch the functionality of the torch trigger between
2T and 4T.
2T Normal Mode In this mode, the torch trigger must remain pressed for thewelding
output to be active.
Press and hold the torch trigger to activate the power source (weld). Release the torch
trigger switch to cease welding.
Minimum
Current
Press & hold
Trigger
20
In excess of 40 PPS, Pulsed TIG becomes more
audible than visible-causing increased puddle
agitation for a better as-welded microstructure.
Pulsing the weld current at high speeds-between
a high Peak and a low Background amperage-
can also constrict and focus the arc.This results
in maximum arc stability, increased penetration
and increased travel speeds(Common Range:
100-500 PPS).
The Arc-Sharpening effects of high speed
pulsing are expanded to new dimensions. The
ability to pulse at 5,000PPS further enhances
arc stability and concentration potential-which
is extre mely beneficial to automation where
maximum travel tspeeds are required.
Release
Trigger
AC/DC SERIES EQUIPMENT
4 T L a t c h m o d e t h i s m o d e o f w e l d i n g i s m a i n l y u s e d f o r l o n g w e l d i n g r u n s t o r e d u c e
operator fatigue. In this mode the operator can press and release the torch trigger and
the output will remain active. To deactivate the power source, the trigger switch must
again be pressed and released, thus eliminating the need for the operator to hold the
torch trigger.
N o t e : t h a t w h e n o p e r a t i n g i n G TAW ( H F a n d L I F T T I G m o d e s ) , t h e p o w e r s o u r c e w i l l
remain activated until the selected down slope time has elapsed
4. Process Selection Button
The process selection control is used to select the desired welding mode. Two modes
are available, GTAW (TIG), and MMA (Stick) modes.
5. Digital Ammeter
The digital amperage meter is used to display both the pre-set current and actual output
current of the power source.
At times of non-welding, the amperage meter will display a pre-set (preview) amperage
value. This value can be adjusted by varying the multifunction control when the
Programming Parameter Indicator light shows BASE CURRENT.
6. Digital Voltmeter / Parameter Meter
The digital volt meter is used to display the actual output voltage of the power source. It is
also used to display Parameters in Programming Mode.
Depending on the Programming Parameter selected, the status indictor adjacent to the
volt meter will illuminate to show the units of the programming parameter.
When welding, the volt meter will display actual welding voltage.
7. Power ON Indicator
The POWER ON indicator illuminates when the ON/OFF switch is in the ON position and
the correct mains voltage is present.
8. Thermal Overload Indicator Light
This welding power source is protected by a self resetting thermostat. The indicator will
illuminate if the duty cycle of the power source has been exceeded. Should the thermal
overload indicator illuminate the output of the power source will be disabled. Once the
power source cools down this light will go OFF and the over temperature condition will
automatically reset. Note that the mains power switch should remain in the on position
such that the fan continues to operate thus allowing the unit to cool sufficiently. Do not
switch the unit off should a thermal overload condition be present.
Operation
21