User Guide

9
Isolation Diode
F(–)
A(–)
A(–)
A(+)
A(+)
Additional
Slaves
Slave
Motor #1
Slave
Motor #2
Slave
Motor #3
A(–)
A(+)
P2
F(–)
P2
F(–)
P2
Ratio 5KΩ
9(–)
10(+)
KBSI-240D
5
7
Main Motor
A(–)
A(+)
DC
Speed
Control
Speed
Control
Speed
Control
Speed
Control
FIGURE 5 – MASTER/MULTIPLE SLAVE VOLTAGE FOLLOWING SYSTEM
A) From a Single Main Motor
KBSI-240D
6
10 (+)
9 (–)
P1*
5K
Pot
5
*Connect high side of potentiometer
to terminal "P1" (1/4" QD)
Connect

as above
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 Variable Frequency Drives (Inverters).
B) From a Single Main Potentiometer
A 10K ratio poten-
tiometer is used to
control up to ten
(10) slave motors.
If a 5K ratio poten-
tiometer is used, up
to five (5) slave
motors can be con-
trolled.