RE: (DCS) Electrical Noise Interference's.
Project: (electric motor switch machines)
CTI - Model Railroad Computer Control
http://www.cti-electronics.com/appnotes.htm
Noise Reduction Techniques
Motors are natural arc generators.
Arcing is caused by the inherent make/break connection between the motor’s brushes and commutator plates.
Arcing produces high voltage, high frequency electrical spikes that can travel easily (either by direct electrical connection,
or via electromagnetic emission through the air) onto other nearby electrical circuits.
The solution is simply to install a small capacitor (between 0.01 and 0.1 uF is a good rule of thumb) across the motor leads.
The capacitor should be placed as close to the motor as possible, preferably right at the motor itself.
This capacitor will serve to filter out the high frequency electrical arc before it can propagate out of the engine, and onto adjacent wiring.
Tortoise Switch Machine:
A CTI electrical engineer informed me that the closer the commutator noise suppression capacitor is located to the motor terminals,
the better it will work.
Adding a 0.1Uf 50V capacitor at the (x2) motor terminals on the switch machine will help.
ED-RRR ......
View Picture Below --> Capacitor
