Owner`s manual
OM-223 528 Page 18
SECTION 5 − OPERATION
5-1. Operational Terms
The following is a list of terms and their definitions as they apply to the interface unit in the wire feeder:
General Terms:
Adaptive Pulse Welding When the “adaptive pulse” welding process is selected, the unit will attempt to automatically regulate
weld output in order to maintain a constant arc length, regardless of change in welding wire stickout.
Abk (Background Amperage) Abk is the low weld current. Background current preheats welding wire and maintains the arc. When
background current is too low, the arc is unstable and hard to maintain.
Apk (Peak Amperage) Apk is the high pulse of welding current. Peak current melts the welding wire and forms a droplet. The
droplet is forced into the weld puddle.
Vpk (Peak Voltage) Arc voltage during peak current phase of the pulse waveform. This determines arc length during
adaptive pulse welding.
Inductance In short circuit GMAW welding, an increase in inductance will decrease the number of short circuit
metal transfers per second (provided no other changes are made) and increase the arc-on time. The
increased arc-on time makes the pool more fluid.
PPS (Pulses Per Second) PPS, pulse rate, and frequency (Hz) are used interchangeably. A PPS or pulse rate of 60 Hz means
60 pulses of current are produced each second.
PWms (Pulse Width in Milliseconds) PWms is the time spent at peak current (1.2 ms is .0012 seconds). This time must be long enough to
form a droplet of welding wire. The stiffness or fluidity of the molten weld puddle is controlled by
PWms.
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.
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.
Program Eight active slots for selection of various processes, wire type, and parameters.
Process A selection made for MIG, Pulse, Accu-pulse, and RMD (optional).
MIG CV weld process with individual settings of voltage and wire speed.
Pulse Conventional pulse program using peak, background, pulse width, frequency, and peak voltage as
factory taught data. Adaptive method is controlled by frequency adjustment.
Accu-pulse Pulse process utilizing constant current ramps with constant voltage control of peaks and back-
grounds. 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.
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.
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.
Wire Type Selection of wire type by alloys and classification.
Gase Type Selection of shielding gas being used in application.
Process Set Up Selection procedure for entering program.
Program Load Enters selected program information into program slot.
Volts Preset voltage in MIG mode at idle, actual voltage while welding, and 3 seconds hold value at end of
weld.
Time Indicates time values being set for timed functions (e.g. Preflow, Postflow which are only available in
the Arc On and Analog input or the Arc On and No Analog input modes).
Arc Length Distance from end of wire electrode to workpiece.
WFS Term used to represent wire feed speed. In MIG mode, wire feed setting is independent of voltage
setting. In pulse, Accu-pulse, and RMD (optional) adjusting wire feed speed also increases power
level on wire electrode (one knob control).
Amps Indicates average amperage while welding and 3 seconds hold value at end of weld.