4-2
MN1373
Note:
* The BC141 controls depicted above and in the following diagrams could also be other models in your application - BC142, BC142-5,
BC142-6, or BC155.
A 10K ratio potentiometer is used to control up to ten (10) follower motors.
If a 5K ratio potentiometer is used, up to five (5) follower motors can be controlled.
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 in
Figure 4-1.
3) Multiple speed controls cannot be used with PWM, Regenerative or Adjustable Frequency Drives (Inverters).
Figure 4-2 Leader/Follower Voltage Following System
