LEESON Chassis Mount PWM Control: M1740009.00 - Manual (Page 32)

26
L1 S1 (H2) S2 S3 (H1)
BR501 GBU8J
15V .5W P501 100K
3
MAX SPD
R13 300K
R7 330K
R12 330K
R16 330K
8
6 5
7
4
V- V+
IC2 LM358N
R15 330K
R502 6.8K/10W
+15V
R9 15K
+5V
MIN SPD
CW
3
CW P503 10K
C3
1/35
C4
R14 33K
C501 220/25
D1
R5 12K R8 33K
TH501
+15V
L2
MOV1
FU501
5A
/ 3AG
- +
Figure 17. Input Circuit Diagram