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Crater Fill - Provides crater feed speed adjustment (in
4-step trigger mode) independent of weld, cold feed,
or run-in speeds.
Solid-State Overload Protection - No circuit breaker
to reset. Front panel display indicates time remaining
before automatic reset.
Gas Solenoid Valve - Complete with inlet fittings for
easy installation of gas is standard on Synergic 7F
models. Also available as an option (K659-1) a Gas
Guard regulator for flow surge suppression.
English/Metric Speed Display - Provides front panel
selection of speed display in units of IPM or M/M.
4-Roll Drive - Both models employ 4-Roll Drive, with
2 driven rolls, providing optimal feeding force for
problem feeding situations, with low wire deformation
for improved feeding of soft wires.
Control Features:
Microcomputer Based Control - Provides precise
setting and display of all parameters and precision
timing functions. Optimizes wire drive control for crisp
acceleration and smooth response with precise
repeatability. Allows synergic control of various
welding processes by communicating information over
a serial link to the compatible power source.
Display and Indicator Lights - Wide temperature
range, long life, 3-1/2 digit 7-segment LED display
with .56” (14.2mm) character height permits easy
viewing even from long gun cable distances.
Individual red indicator lights are high intensity LED’s
for viewing at almost any angle.
Encoder Controls - Rotating encoders provide
continuous knob control for setting both Wire Feed
Speed and Volts/Trim procedures.
Keypad - Consists of 7 membrane keys with tactile-
feel embossed domes. All keys are generously
spaced to provide easy selection, even if wearing
welding gloves.
2-Step or 4-Step Trigger Modes - Unit operates only
when trigger is pressed in 2-Step mode (normal)
operation. 4-Step Trigger Mode eliminates the need
to hold the gun trigger closed while welding.
Both models have user selectable 4-step with crater
fill, or as shipped, 4-step with current interlock.
Gas Preflow and Postflow Timers - Allows setting of
shielding gas preflow time (0-2.5 seconds) before
welding arc starts, and gas postflow time
(0-9.9 seconds), after welding arc stops.
Crater Fill - Allows setting of crater fill WFS (when 4-
step with crater fill trigger mode is selected),
independent of weld, cold feed, and run-in speeds.
Spot Mode - Allows a single timed weld cycle each
time the gun trigger is held closed. Duration (0.2-9.9
seconds) is set by the Spot ON timer.
Digital “Memory” Voltmeter - Displays arc voltage
from 0 to 80V DC, when welding gun trigger is
activated, with automatic polarity indication for positive
or negative electrode. The last welding voltage
monitored at end of weld is displayed for 5 seconds
after weld has stopped. This allows checking actual
voltage after weld has stopped.
Power-down Save - All settings, including mode,
Run-in speed, cold feed speed, crater speed, weld
speed, timers, English-Metric units and acceleration
are automatically saved when power is removed. This
feature does not require batteries and when power is
restored it will automatically return all settings to the
state they were in when power was removed.
However, the power source may overwrite any or all
of these parameters after Power-Up Recall is
complete.
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