Lincoln Electric IM559 Synergic 7F and 7FH - Manual (Page 9)

A-2 INSTALLATION
SYNERGIC 7F & FH
A-2
GENERAL DESCRIPTION
The Synergic 7F is a CSA / NRTL/C certified semiautomatic
constant speed wire feeder designed specifically for use
with the Invertec Power Wave type power sources. This
boom or fixture mounting wire feeder consists of a Synergic
7F Control Box and the choice of the standard Synergic 7F
or High Speed Synergic 7FH wire feed unit and connecting
cable assemblies. A serial communication link is supplied
through the input control cable of the Synergic 7F enabling
information to be shared between the power source and
wire feeder control. The 4-Roll Synergic 7F wire feed units
come factory equipped with gas solenoid valve with gas fit-
tings and standard Lincoln gun connector and connector for
an optional dual procedure gun switch. Control includes a
3-1/2 digit LED display with rotating knob encoder controls
for setting the wire feed speed and voltage. 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 a connector receptacle is provided for an
optional dual procedure remote control.
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. In addition, when 4-step trigger mode is select-
ed, 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 K678-2 Synergic 7F control may be used with
either of the two available 4-roll wire feed units.
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 7FH wire feed unit has the following
wire feeding capabilities:
a) Feeds .025 - .045” (0.6-1.2mm) solid wire for
gas-metal-arc processes.
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
sources with 42VAC auxiliary power, and a 14-pin
connector receptacle.
STANDARD FEATURES
Wire Feed Features:
Wire Drive Unit - Incorporates low voltage permanent
magnet motor and highly efficient two-reduction spur
gearbox with insulated mounting bracket for mounting
and operation 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.
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)
K679-1 Synergic 4-Roll 50 - 770 .025 - 3/32
7F (1.25 - 19.5) (0.6 - 2.4)
K679-2 Synergic 4-Roll 80 - 1200 .025 - .045
7FH (2.00 - 30.5) (0.6 - 1.2)
RECOMMENDED PROCESSES
AND EQUIPMENT
The Synergic 7F 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.
The feeder to control cable assemblies are available in two types:
K680-”L” Includes a control cable with a 14-pin MS style connector on each end, and a 4/0 weld
cable. Available in lengths “L” of 16ft (4.9m) or 25ft (7.6m).
K681-”L” Same as above but does not include weld cable available in lengths “L” of 12ft (3.6m),
16ft (4.9m) or 25ft (7.6m).