G-11, Ln-25 pro wire feeder, Electrical diagrams – Lincoln Electric LN-25 SVM179-B User Manual
Page 89: Timer p. c. board circuit, Ln-25™ pro
ElECTriCal DiaGrams
G-11
lN-25™ prO
sChEmaTiC - lN-25 prO - COmplETE maChiNE CODEs 11620, 11621, 11716, 11717 - (G5683-2) pG2
G5683-2
LN-25 PRO ANALOG
MACHINE SCHEMATIC
NONE
G5683-1
DO NOT SCALE THIS DRAWING
EQUIPMENT TYPE:
SUBJECT:
UF
CRM40943
2
PAGE ___ OF ___
2
ENGINEERING CONTROLLED
MANUFACTURER:
No
THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION OWNED BY LINCOLN GLOBAL, INC. AND MAY NOT BE DUPLICATED, COMMUNICATED
TO OTHER PARTIES OR USED FOR ANY PURPOSE WITHOUT THE EXPRESS WRITTEN PERMISSION OF LINCOLN GLOBAL, INC.
PROPRIETARY & CONFIDENTIAL:
RELEASED A.03 FROM "X".
t
MATERIAL TOLERANCE (" ") TO AGREE
WITH PUBLISHED STANDARDS.
ON ALL ANGLES IS ± .5 OF A DEGREE
ON 3 PLACE DECIMALS IS ± .002 in. (± 0.05 mm)
ON 2 PLACE DECIMALS IS ± .02 in. (± 0.5 mm)
UNLESS OTHERWISE SPECIFIED TOLERANCE:
MANUFACTURING TOLERANCE PER E2056
CHANGE DETAIL:
REFERENCE:
SCALE:
MATERIAL
DISPOSITION:
APPROVAL
DATE:
PROJECT
NUMBER:
DOCUMENT
NUMBER:
DOCUMENT
REVISION:
UNITS:
IF PRINTED
@ A2 SIZE
INCH
11/6/2009
tpearn
ENYEDY
BS
DRAWN BY:
ENGINEER:
CLEVELAND
APPROVED:
CONTROL:
A
G56
83
-2
LN-25 PRO WIRE FEEDER
TIMER KIT
(OPTIONAL)
SCHEMATIC =
M21342
J60-6
601
509B
605
607
608
606A
J60-5
J60-8
J60-7
J60-1
J60-2
5V
COM
(LOCATED BEHIND WIRE
REEL COVER)
(LOCATED ON CASE FRONT)
TIMER P. C. BOARD CIRCUIT
POSTFLOW
POT.
PREFLOW
POT.
TOGGLE GAS FLOW
ON/OFF
5V SIGNAL
GAS FLOW
ENABLE
MICROCONTROLLER
J60-4
15V
OUTPUT
15V SIGNAL
15 ms PULSES
+5V
COM
+5V
COM
4B
TO CONTROL BD. (VIA P60 plug)
BURNBACK
POT.
ADJUST KNOB
COM
10K
CW= +5
CCW= 0V
+5V
+5V
10K
+5V
10K
ADJUST KNOB
ADJUST KNOB
NOT
USED
J60-3
Timer Board Summary
Has potentiometers for burnback, postflow and preflow.
Preflow range is 0 to 10 sec.
Burnback range is 0 to 0.25 sec.
Postflow range is 0.25 to 10 sec.
Receives “Gas Flow Enable” signal.
Outputs 100 msec pulses to turn Gas Flow On, Gas Flow Off.
G-11
NOTE:
This diagram is for reference only. It may not be accurate for all machines covered by this manual.