Archive > 2020 > October 2020 > Keeping Drives Electrically Quiet: Ferrites, Shielding and Grounding

Keeping Drives Electrically Quiet: Ferrites, Shielding and Grounding - October 2020

Donald Labriola, P.E.

The article "Keeping Drives Electrically Quiet: Ferrites, Shielding and Grounding" appeared in the October 2020 issue of Power Transmission Engineering.

Summary
Motion control systems often combine high power drive signals in close proximity (or even within the same cable) with lower level signals, like encoders. You will often see ferrite beads added around cables; their effectiveness in minimizing noise is greatly affected by how they are deployed. This involves which signals are grouped, what are the drive characteristics, and how shielding and grounding are handled in the system.

Keywords
motors, controls, motion control, shielding, electrical noise

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