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.
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) |
| | | | |
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).
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.
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.
