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G-8
ELECTRICAL DIAGRAMS
LN-9 GMA
PM Control Schematic
525
15.0K
R21
267
R44
520525 525
525
J
-10V -10V
+10V
+15V
+15V
+15V+15V
+15V
-10V
+10V
THE LINCOLN ELECTRIC CO.
DATE
DR.
CLEVELAND, OHIO U.S.A.
1A, 400V
DIODES =
LM
CHK.
NONE
X3
7
6
5
50V
4
C8
1.00K
R17
1.00M
R38
100V
.047
C9
15.0K
R39
22.1K
R30
LM224
X3
4
11
10.0
R43
1.00K
R4
C2
18
15V
C3
12
7
Vref
Vee
Vz
NC
LM723
NC
Vcc
+Vin
Vc
ILIMIT
ISENSE
COMP
Vo
NC
-Vin
X1
3
4
2
13
6
11
5
8
9
14
10
1
500
CW
R3
5.62K
R11
X3
1
2
3
C12
+10V
520
510A
520
+10V
X4
8
9
10
40V
600mA
Q7
2.94K
R5
J10
2
J10
3
J10
1
X1
LM723
12
7
C19
C18
J10
8
C20
LM224
X4
4
11
X2
LM2907
9
12
C17
C21
BLK
J10
11
J10
15
47.5K
R41
D9
X4
14
13
12
2.7
50V
C30
15.0K
R51
525
510A
4.7
35V
C14
15.0K
R6
BOARD
47.5K
R52
POWER
FROM
510
J10
9
4.7
35V
C4
J10
10
500
+15V
525
10K
R45
J10
7
J10
14
RED
510
525
BLUE
555
MOTOR DISABLE
522
524A
D7
524A
10069
L
525
EFFECT
MODULE
525
HALL
+15V
33.2K
R9
POWER
FROM
-10V
PCB
628
ChÕge.Sht.No.
ON 3 PLACE DECIMALS IS + .OO2
ON ALL ANGLES IS + .5 OF A DEGREE
UNLESS OTHERWISE SPECIFIED TOLERANCE
ON 2 PLACE DECIMALS IS + .O2
ON HOLES SIZES PER E-2056
MATERIAL TOLERANCE ("t") TO AGREE
WITH PUBLISHED STANDARDS
J10
13
C-
CAPACITORS =
1/4W
R-
UNLESS OTHERWISE SPECIFIED)
ELECTRICAL SYMBOLS PER E1537
MFD
VOLTAGE
CIRCUIT
GENERAL INFORMATION
LABELS
METER
.022/50V
(
510A
500
500
512
510A
525
500
510A
520
510A
D-
511
512
510A
520
PCB
TO
(UNLESS OTHERWISE SPECIFIED)
10/31/95
RESISTORS = Ohms (
SUPÕSÕDÕG.
SUBJECT
EQUIP.
TYPE
SHT.
SCHEMATIC
NO.
EARTH GROUND CONNECTION
LN-9 GMA PM CONTROL
POWER SUPPLY SOURCE POINT
FRAME CONNECTION
L
10069
52
X- 4
DZ- 5
S- 1
QU- 1
Q- 8
11
30
FILENAME: L10069_1AB
TO
UNLESS OTHERWISE SPECIFIED)
COMMON CONNECTION
SCALE
SUPPLY
VOLTAGE NET
LAST NO. USED
D3
47.5K
R13
3.9
35V
C7
100K
R15
50K
CW
R20
40V
600mA
Q1
C26
1.00K
R16
33.2K
R19
D2
S1
16
1
562
R42
J10
5
15.0K
R12
1.00K
R14
X3
8
9
10
510A
18
15V
C15
267
R2
1.00K
R18
C13
D1
J10
6
525
511
+15V
CLOSED - FAST
OPEN - SLOW
631
CW
632
633
CONTROL
WIRE
SPEED
J10
4
X3
14
13
12
NUMBER.
D8
2.7
50V
C10
2N6027
QU1
.47
50V
C29
10K
R35
600mA
40V
Q4
1.00K
R25
D5
C27
100V
.15
C11
6.81K
R33
C23
40V
600mA
Q3
1W
16V
DZ2
10K
CW
R29
C24
10K
CW
R22
15.0
R31
13.7K
R26
X4
7
6
5
D6
X4
1
2
3
1W
30V
DZ4
C28
D4
15.0K
R36
500mW
3V
DZ3
40V
600mA
Q2
33.2K
R23
C22
10K
R37
100K
R24
40V
600mA
Q6
6.81K
R27
10K
R28
1W
6.8V
DZ1
2.67K
R34
C25
J10
12
100
R32
100V
1A
Q5
525
500
500
N.A. SINCE COMPONENTS OR CIRCUITRY ON A PRINTED CIRCUIT BOARD MAY CHANGE
WITHOUT AFFECTING THE INTERCHANGEABILITY OF A COMPLETE BOARD, THIS DIAGRAM MAY
NOT SHOW THE EXACT COMPONENTS OR CIRCUITRY OF CONTROLS HAVING A COMMON CODE
M
K
PUT
POWER
RESET
BOARD
+15V
540
-10V
L
NOTES :
.33
50V
C6
10.0K
R47
D10
10.0K
R48
20K
CW
R50
D11
1W
10V
DZ5
Q8
2N4401
510A
10K
R10
1.00K
R49
CW
100K
R8
200V
.0033
C5
511
CURRENT FLOWING
RUN-IN
100V
100p
C16
9
12
Ic
NC
V+
NC
LM2907
NC
GND
TACH INPUT
TACH INPUT
ISOURCE
IBIAS
/
ISINK
NC
IBIAS
X2
10
4
5
3
6
11
1
13
2
14
8
7
C1
1.00K
R1
-10V
10K
R7
500
68.1K
R46
6-7-96A
G-8
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NOTE: Lincoln Electric assumes no responsibility for liablilities resulting from board level troubleshooting. PC Board repairs will invalidate your factory warranty. Individual Printed Circuit Board Components are not
available from Lincoln Electric. This information is provided for reference only. Lincoln Electric discourages board level troubleshooting and repair since it may compromise the quality of the design and may result
in danger to the Machine Operator or Technician. Improper PC board repairs could result in damage to the machine.