Leader/Follower Voltage Following System With Multiple Motors - Baldor BC145 Installation And Operating Manual

FIGURE 5 – LEADER/FOLLOWER VOLTAGE FOLLOWING SYSTEM WITH MULTIPLE MOTORS
A 10K ratio poten-
tiometer is used to
control up to ten (10)
follower motors.
If a 5K ratio poten-
tiometer is used, up
to five (5) follower
motors can be con-
trolled.
WARNING! If Signal Isolator is connected to multiple speed controls;
1) Multiple controls must be powered from the same phase of AC line.
2) The positive input terminal to each speed control must be installed with a 1 amp - 600V isolation diode as
shown.
3) Multiple speed controls can not be used with PWM, Regenerative or Adjustable Frequency Drives (Inverters).
A) From a Single Main Motor
Leader Motor
A(+)
BC141
A(–)
B) From a Single Main Potentiometer
P1*
6
5K
BC145
Pot
5
*Connect high side of potentiometer
to terminal "P1" (1/4" QD)
Ratio 5KΩ
10(+)
7
BC145
9(–)
5
10 (+)
Connect
as above
9 (–)
Additional
Slaves
Follower
Motor #1
A(+)
P2
BC141
A(–)
F(–)
Isolation Diode
Follower
Motor #2
P2
A(+)
BC141
A(–)
F(–)
Follower
Motor #3
P2
A(+)
BC141
A(–)
F(–)
9