10
Motor
A(–)
F(–)
A(+)
P3
5K Pot
Auto/Man
10(+)
9(–)
Manual
5K Speed Pot
P2
P1
CONTROL
BC145
The BC145 can be
wired in an
Auto/Manual mode
which will allow
manual override of
an automatic
process. See figure
6B.
FIGURE 6B – PROCESS CONTROL WITH AUTO/MANUAL SWITCH
9(–)
10(+)
BC145
5
7
90V DC
Leader Motor
A(–)
A(+)
BC141
BC141
Speed
Pot
AC Line
AC Line
AC Line
F-
Follower
Motor #1
A(–)
A(+)
P2
L1
L2
FIGURE 6A – LEADER/FOLLOWER VOLTAGE FOLLOWING SYSTEM
