Dual Head/Dual Procedure With Memory - Lincoln Electric POWER FEED IM916 Operator's Manual

b-16
Each procedure contains/stores the following informa-
tion:
• Basic weld parameters as applicable - WFS, Volts,
Trim, Amps
• Weld Mode - Mode Number
• Preflow/Postflow - Time in Seconds
• Run in - WFS Only (work point determined by next
active sequence state)
• Start Parameters - Status, Slope Time, WFS, Volts,
Trim, Amps
• Arc Control - Setpoint
• Crater Parameters - Status, Slope Time, WFS, Volts,
Trim, Amps
• Burnback - Time in Seconds
• Limits - All applicable limits.
DUAL HEAD / DUAL PROCEDURE WITH
MEMORY
In general terms, dual procedure and memory are essen-
tially independent storage locations for information.
Procedures can be thought of as temporary or working
storage locations because they contain the weld settings
readily available for use, and when active, are easily
modified. The dual procedure feature allows the operator
to switch between procedures (A and B) "on the fly" while
welding. In addition to their procedure set-up functions,
the procedure select push buttons serve as a means to
manually select the active feed head (wire drive).
Memory is more of a permanent storage location that
cannot be accessed while welding. It contains one com-
plete set of procedure information which can be recalled
into the active procedure (A or B). Conversely, the active
procedure can be saved into memory for safe keeping.
Dual Procedure / Head Select
This feature allows the user to select Procedure A, Gun
(Remote Select), or Procedure B, as well as selecting the
active feed head (wire drive). The active feed head is
indicated by the procedure group (A, Gun, B) with the
illuminated LED(s), and only one procedure group / feed
head can be active at a time. Changing the active feed
head can be done in one of two ways. Either remotely,
by pulling the trigger of the inactive feed head, or locally
by momentarily depressing the procedure select push-
button of the inactive head.
When a procedure group / feed head is active, momen-
tarily depressing the procedure select pushbutton will
change from A to Gun, from Gun to B, or from B to A.
The corresponding LED will be lit to let the user know
which procedure is active. When the Gun position is
selected, the Gun LED will be solid red, and the active
procedure LED (A or B) will be flashing.
The active procedure is determined by the dual proce-
dure (Gun) input located in the gun receptacle, or
through the "Procedure Change with Trigger" feature if
properly configured.
OPERATION
Note:
When in the Gun position, if no dual procedure (Gun)
switch is plugged in, the Procedure defaults to A.
There are a total of four independent procedures avail-
able on this panel. Two for each feed head.
Both the contents of the active procedure, and the active
procedure itself (A to B, or B to A) can be changed "on
the fly" during welding. Changing the active status of the
feed head can only be done when the system is in the
idle state. Procedure settings for each feed head, and
active procedure information are saved at power down.
Memory
This feature allows the user to save and recall up to six
individual procedures to/from a secured storage location.
Each of the six memory locations is capable of storing a
complete copy of the information associated with a single
procedure (A or B) including its individual limits. See the
complete list above.
Memories can be accessed at anytime, except when
welding. For wire fed processes this means anytime a
trigger is NOT activated. For CC processes it means
anytime current is NOT flowing.
Saving to Memory
To save an individual procedure (A or B) to memory, first
be sure the desired procedure of the desired feed head
is active (its LED is on). Press and hold the button of the
memory location you wish to store the procedure into.
After 2 seconds, the LED above the memory button will
begin to flash indicating that the procedure has been
saved. The LED will continue to flash as long as the
memory button is depressed. When released the memo-
ry LED will stay on steady, and remain lit as long as the
contents of the memory remain equal to the contents of
the associated procedure.
If the memory button is released before the light begins
to flash (t < 2s), a memory recall function will occur
instead of a save function (i.e. the contents of the select-
ed memory will copied to the active procedure).
Note:
It is not required to load all 6 memories at once, nor is it
necessary to load them in order.
POWER FEED™ 10M DUAL WIRE FEEDER
b-16