Keypad And Display Operation; Keypad And Display Description; Power-Down Save; Operation Keys - Lincoln Electric SVM154-A Service Manual

B-6

KEYPAD AND DISPLAY OPERATION

LINCOLN
R
COLD FEED COLD FEED
GAS PURGE
FORWARD REVERSE
A B
REMOTE
PROCEDURE
COLD FEED
TRIGGER
2-STEP STD
4-STEP LOCK
SPOT
PREFLOW
1
RUN-IN
VOLTS / WFS
SPOT
BURNBACK
2 POSTFLOW
TIMER CONTROL
THE LINCOLN ELECTRIC COMPANY CLEVELAND, OHIO

Keypad and Display Description

Keypad - Seven key, membrane type with "snap" tac-
tile feel and embossed domes. Long life design.
Spatter resistant surface.
Displays - Two digital LED displays with .56" (14.2
mm) character height. Top (3-1/2 digit) displays
Preset and Actual (while welding) arc voltage in volts
with (+) or (-) polarity indicators, and also displays all
timers in seconds. Bottom (4 digit) displays preset
wire feed speed in IPM, or m/m, and acceleration
selection.
Indicator Lights - Extra bright red LEDs for viewing
at almost any angle. Always indicate the feeder and
procedure selected, trigger mode being used and
function or timer being displayed.
Rotating Encoders - Knob controls increase or
decrease settings of volts and wire feed speed. (ini-
tially factory set to minimum) Alternately, the top
encoder adjusts timer settings and bottom selects
acceleration settings when selected for these parame-
ters to be displayed.
OPERATION

Power-Down Save

Power to the LN-10 is supplied and controlled from
the power source. The LN-10 automatically senses
V
the loss of power when the power source is turned off.
Dual procedure settings, including; trigger mode, cold
feed speed, Run-in and weld speed and voltage,
WFS
timers and acceleration are automatically saved for
each feeder when power is removed. This feature
does not require batteries and when power is restored
it will automatically return all settings to the state they
V
VOLTS
were in when power was removed. The operator may
overwrite any or all of these settings following power
up recall.
WIRE FEED SPEED

Operation Keys

A
U.S.A.
G3161
PROCEDURE
COLD FEED
FORWARD
set at 200 IPM, It is adjustable with WFS encoder
knob and is displayed on WFS display (with "Cld"
shown on the Voltage display) only while pressing
Cold Feed Forward. The last speed set is stored in
memory for the next cold feeding, unless it is changed
in the Cold Feed trigger mode (See Trigger Mode
Selection). Cold Feed Reverse retracts wire at a
fixed 80 IPM speed which is not adjustable.
GAS PURGE
LN-10
Procedure Lights - Indicate which
REMOTE B
procedure (A or B) is selected for the
selected feeder. The Procedure select
key selects A or B, or if REMOTE Light
is selected, the procedure selection
light is controlled by connection of an
optional Dual Procedure gun switch
(K683-1, -3) or Dual Procedure
Remote Control (K1449-1).
Cold Feed Keys - energize
COLD FEED
REVERSE
the wire feeder but not the
power source or gas sole-
noid valve. Cold Feed
Forward speed is factory
Gas Purge key - energizes the gas
solenoid valve but not the wire feeder or
power source.
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