LEESON NEMA 4X SCR Control: 174903.00 (Obsolete) - Manual (Page 18)

SPEEDMASTER SCHEMATIC
ALL RESISTORS 1/2W UNLESS NOTED OTHERWISE
Q2 .................................. 3052 MOC
Q3, Q4, D5, D6, D7 ....... L512FY131 GENTRON
Q5 .................................. LM324N IC
F1 * ................................ BUSS ABC-10 or LITTLEFUSE 314010
NOTES:
WIPER
P1-2
+12V
9
10
8
+
-
5
6
7
+
-
R30
180K
ACCEL
R9
250K
R29
10K C10
.01uf
100V
R33
470K
R34
100K
C9
.22uf
250V
Q5-2
Q5-3
R31
390K
LO
P1-1
HI
P1-3
R35
470
OHM
MIN
R12
5K
R32
47K
REMOTE
SPEEDPOT
R10
5K
+12V
13
12
14
+
-
Q5-4
4
11
3
2
1
+
-
Q5-1
+12V
A
AC2
P1-11
B
Q4
L512F
Q3
L512F R25
390 OHM
F1 *
R27
1K
R26
390 OHM
+ARM
P1-5
-ARM
P1-4
MOTOR
R19
150K
R20
1K
R21
1K
MAX
R22
50K
R17
390K
+TACH
D7
L512F
R24
.01 OHM
5W
R8
15K
-FIELD
R7
470K
R11
10K
D3
1N914B
C7
.1uf
50V
R4
1.2M
C5
.1uf
50V
R6
82K
R5
180K
C4
.033uf
400V
C2
.01uf
100V
C6
22uf
16V
R18
4.7K
R16
4.7K
R13
470K
IR COMP.
R23
100 OHM
CUR. LIM.
R15
5K
R14
300K
D5
L512F
D6
L512F
B A
Q1
2N6027
C1
10uf
35V
D4
1N5242B
D8
1N914B
R1
15K
8W
R2
2.7K
P1-6
D2
1N4005
B
D1
1N4005
A
+FIELD
P1-7
SENSE RES.
P2
AC1
P1-10
Q6
275V
G-MOV
JU1
C3
.001uf
1KV
R3
2.7K
1
2
Q2-1
3052 MOC
4
6
R36
91K
C8
.0047uf
1KV
Q2-2
3052 MOC
D10
1N5233B
D9
1N4005
C11
.01uf
100V
R28
20K 1%
1/4W
+12V
+12V
SPARE P1-9
SPARE P1-8
R37
1 OHM
JU2
+12V
C12
.068uf
250V
%
%
17