Constant Current Operation - Lincoln Electric ACTIVE8 Operator's Manual

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B-6
The serviceability of a product or structure utiliz-
ing the ACTIV8™ wire feeder is and must be the
sole responsibility of the builder/user. Many vari-
ables beyond the control of The Lincoln Electric
Company affect the results obtained in using the
ACTIV8™ wire feeder. These variables include,
but are not limited to, welding procedure, plate
chemistry and temperature, weldment design, fab-
rication methods and service requirements. The
available range of the ACTIV8™ wirefeeder may
not be suitable for all applications, and the
builder/user is and must be solely responsible for
welding settings.

CONSTANT CURRENT OPERATION

Setting Wire Feed Speed in CC mode
When Across the Arc models are operated with CC
power sources, the wire feed speed changes as the
arc voltage changes. When the arc voltage increases,
the wire feed speed will increase; and when the arc
voltage decreases, the wire feed speed will decrease.
700
650
600
550
500
450
400
350
300
250
200
150
100
50
50
100 150 200 250 300 350 400 450 500 550
A constant voltage (CV) power source is recommended
(FCAW) and gas metal arc welding (GMAW) to obtain c
However, this wire feeder may also be used with a c
source to obtain passable results for noncritical q
OPERATION
To preset the wire feed speed on CC power sources:
1. Set the Wire Feed Mode switch inside the
2. Refer to the Figure B.4 graph to determine cc set-
3. Select the diagonal line representing the Arc
4. Determine the vertical line representing the CC
CC WFS dial setting = desired WFS x 35
Example:
(See Figure B.4)
FIGURE B.4
CC
for ux-cored arc welding
ACTIV8™
ode quality results.
onstant current (CC) power
uality applications.
ACTIV8™ to "CC".
ting of the wire feed speed knob. Select the hori-
zontal line representing the Desired Wire Feed
Speed. (See Figure B.4 arrow for 375 in/min.)
Volts. (See Figure B.4 for 29 volts.)
Wire Feed Speed setting where the above two
lines cross. (See Figure B.4 arrow line for 450.)
Set the ACTIV8™ wire feed speed knob to this
value.
Arc Volts
375 in/min. (Horizontal Line) x 35
=
29 Arc Volts (Diagonal Line)
=
452.5 (Vertical Line)
V
35
ARC
VOLTS
33
31
29
27
A constant voltage (CV) power
25
source is recommended for flux-
23
cored arc welding. (FCAW) and
21
gas metal arc welding (GMAW) to
19
obtain code quality results.
17
However, this wire feeder may also
be used with a constant current
15
(CC) power source to obtain pass-
able results for noncritical quality
applications.
600
650 700
B-6
Use 450 setting

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