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A-2
INSTALLATION
SYNERGIC 7 & 7H
A-2
GENERAL DESCRIPTION
The Synergic 7 is a semiautomatic constant speed wire
feeder designed specifically for use with the Invertec Power
Wave type power sources. A serial communication link is
supplied through the control cable of the Synergic 7
enabling information to be shared between the power
source and wire feeder. The Synergic 7 comes factory
equipped with a gas solenoid valve with gas fittings and
standard Lincoln gun connector. These models includes a
3-1/2 digit LED display with rotating knob encoder controls
for setting the wire feed speed and voltage and a dual pro-
cedure selector switch. A tactile-feel keypad provides
selection of operating mode, function selection, timer and
crater fill selection and parameter adjustment. Two keys
provide Cold Feed and Gas Purge functions, and connector
receptacles are provided for an optional dual procedure
remote control and dual procedure switch.
The unit has 3 operating modes: 2-step trigger, 4-step trig-
ger and spot. Three functions can be selected: Volts or
Trim Preset/arc (memory) voltmeter, Run-in speed and weld
speed (IPM or m/min.) or (memory) ammeter. In addition,
when 4-step trigger mode is selected, crater fill WFS is also
adjustable. Up to three timers are available depending on
the mode: preflow, postflow and spot, and 5 acceleration
rates are selectable, as well as 6 Burnback settings.
The Synergic 7 is available in 2 models:
b) Feeds .045 - (1.2mm) cored wire for Outershield
GMA or Innershield processes.
Recommended power sources are The Lincoln
Electric Company Synergic type Invertec® Power
Wave power sources with 42VAC auxiliary power, and
a 14-pin connector receptacle.
STANDARD FEATURES
Wire Drive Features:
Wire Drive Unit - Incorporates low voltage permanent
magnet motor and highly efficient two-reduction spur
gearbox which operates in any position. The non-fluid
lubricant won’t leak.
“Quick Release” Wire Feed System - Provides a
completely tool-less means for releasing and opening
the idle roll pressure arm, precisely adjusting the idle
roll pressure and changing the incoming and outgoing
guide tubes and drive rolls.
Drive Rolls and Guide Tubes - Provide long life,
positive feeding and precise alignment of electrode.
Minimizes “birdnest” or mill-thru of wire if properly set.
(Ordered separately.)
Tachometer Feedback - Provides proper wire feed
acceleration and speed accuracy, independent of fluc-
tuations in line voltage and wire loading, for reliable
arc starting and weld consistency.
Run-in Speed Setting - Allows the arc striking speed
“Run-in” to be adjusted independently of the weld feed
speed for starting optimization.
Cold Feed Speed - Provides cold feed speed adjustment
independent of weld, run-in and crater speeds.
Selectable Acceleration - Provides front panel selec-
tion of 5 acceleration rates. This feature in combina-
tion with Run-in Speed provides the ability to easily
optimize starting on any process or procedure.
Solid-State Dynamic Braking -
Quickly stops wire feed
motor to minimize wire overrun during weld termina-
tion. Solid-state design requires no maintenance.
Ordering Speed Range Wire Size Range
Information Model Drive IPM (m/m) IN. (MM)
K631-3 Synergic 4-Roll 50 - 770 .025 - 3/32
7 (1.25 - 19.5) (0.6 - 2.4)
K631-4 Synergic 4-Roll 80 - 1200 .025 - .045
7H (2.00 - 30.5) (0.6 - 1.2)
RECOMMENDED PROCESSES
AND EQUIPMENT
The Synergic 7 wire feed unit has the following wire
feeding capabilities:
a) Feeds .025 - 1/16” (0.6-1.6mm) solid wire for
gas-metal-arc processes.
b) Feeds .045 - 3/32” (1.2-2.4mm) cored wire for Outershield
GMA or Innershield processes up to 5/64” (2.0 mm).
The Synergic 7H wire feed unit has the following wire
feeding capabilities:
a) Feeds .025 - .045” (0.6-1.2mm) solid wire for
gas-metal-arc processes.