Miller Auto-Axcess 300 DI, Owner'S Manual

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OM-228 874 Page 26
SECTION 5 − OPERATION
5-1. Operational Terms
The following is a list of terms and their definitions as they apply to this interface unit:
General Terms:
AccuCurve
CV Pulse process using a pulse waveform with modified curves at particular locations within the waveform. Has
a distinguished change in arc characteristics. Front panel display is ACCU − CURV.
Accu-pulse Pulse process utilizing constant current ramps with constant voltage control of peaks and backgrounds.
Adaptive response is controlled by peak and minimum current levels. Benefits are shorter arc lengths, better
puddle control, more tolerant of tip-to-work variation, less audible noise, no arc wandering, allows weld to fill in
at toes increasing travel speed and deposition, and more tolerant to poor fit up and gaps.
Accuspeed (optional) CV Pulse process designed for high travel speeds. Typically used in Robotic applications. Arc is designed to be
tight and fast. Front panel display is ACCU − SPED.
Adjust Control knob used to change or set parameters and functions.
Amps Indicates average amperage while welding and 3 seconds hold value at end of weld.
Arc Adjust Term used to represent arc length adjustments in pulse programs. Increasing Arc Adjust increases the actual
arc length. Likewise, decreasing arc adjust shortens arc length. Arc Adjust is replaced by volts in MIG
programs.
Arc Control Pressing this button will allow setting of inductance in MIG mode and sharp arc in pulse, Accu-pulse, and RMD
(optional).
Arc Length Distance from end of wire electrode to workpiece.
Auto Thread Method of jogging wire without holding jog or trigger switch. Pressing Jog and Retract simultaneously will
automatically feed wire. Default setting is 72 inches at a feed rate of 700 ipm. Pressing jog, purge, or trigger
switch will terminate the auto-threading feature. These values can be changed using a PDA with File
Management/WaveWriter software.
Crater Allows setting of voltage/arc adjust, wire feed rate, and time value for arc ends (only available on Auto Axcess
models in the Arc On and Analog input or the Arc On and No Analog input modes, and can only be set with the
optional PDA with File Management software).
Gas Type Selection of shielding gas being used in application.
Inductance In short circuit GMAW welding, an increase in inductance will decrease the number of short circuit transfers per
second (provided no other changes are made) and increase the arc-on time. The increased arc-on time makes
the welding puddle more fluid.
MIG CV weld process with individual settings of voltage and wire speed.
Postflow Setting a time value for gas flow after arc end (only available on Auto Axcess models in the Arc On and Analog
input or the Arc On and No Analog input modes, and can only be set with the optional PDA with File Manage-
ment software).
Preflow Setting a time value for gas flow prior to arc start (only available on Auto Axcess models in the Arc On and
Analog input or the Arc On and No Analog input modes, and can only be set with the optional PDA with File
Management software).
Process A selection made for MIG, Pulse, Accu-pulse, and RMD (optional).
Process Set Up Selection procedure for entering program.
Program Eight active slots for selection of various processes, wire types, and parameters.
Program Load Enters selected program information (process, wire type, gas, etc.) into program slot (1-8).
Pulse Conventional pulse program using peak, background, pulse width, frequency, and peak voltage as factory
taught data. Adaptive method is controlled by frequency adjustment.
Retract Sequence function that allows the wire to move back towards the contact tip when a welding operation is
completed. Setting is both speed (IPM) and time (sec), (only available on Auto Axcess models in the Arc On
and Analog input or the Arc On and No Analog input modes, and can only be set with the optional PDA with File
Management software).
RMD (optional) RMD refers to Regulated Metal Deposition. A precisely controlled short-circuit transfer. Benefits of RMD are well
suited to thin materials, improves gap filling and spatter reduction. Provides less heat input into workpiece,
minimizes distortion and allows use of larger diameter wire on thin gauge materials.
Sequence Selecting Sequence will allow setting of preflow, start, crater, postflow, and retract times and parameters (only
available on Auto Axcess models in the Arc On and Analog input or the Arc On and No Analog input modes).
Sharp Arc In pulse and Accu-pulse mode this adjustment changes the arc cone by adjusting the preprogrammed factory
pulse data. In RMD (optional) this control will affect the arc in much the same way as inductance.
Start Provides voltage/arc adjust, wire feed rate, and time value for modified arc starts (only available on Auto Axcess
models in the Arc On and Analog input or the Arc On and No Analog input modes, and can only be set with the
optional PDA with File Management software).
Synergic Synergic refers to the unit’s ability to use preprogrammed pulse parameters to determine the actual pulse
settings of Peak Amperage, Background Amperage, Pulse Frequency and Pulse Width at any specific wire feed
speed setting.