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What types of connectors are used in industrial motion control systems?

August 28, 2018 By Mary Gannon 1 Comment

Most cable assemblies used in motion control systems require some type of interconnect device to transmit the signals from the cable to the motor or drive. Commonly used connectors include M12 and M8 connectors, which are circular connectors with a 12- or 8-mm locking thread used for sensors, actuators, Fieldbus and industrial Ethernet, primarily in factory automation applications. Often with ratings of IP65, IP68, and IP69K, they work in washdown and corrosive environments.

Binder-520_M12---L-code_300-dpiBinder-520_M12---L-code_300-dpi
Industrial automation systems often use M12 connectors transmit the signals from the cable to the motor or drive. Image courtesy of Binder

High-speed miniature connectors are increasingly common in compact designs for industrial automation needing signal density, electrical performance, and mechanical dependability. Modular connectors, microconnectors, and heavy-duty connectors with locking systems provide reliable connectivity even for high-vibration environments. These designs must provide mechanical strength and vibration resistance in power, control and signal circuits in demanding motion control systems.

Many industrial automation networks require greater amounts of data at extremely high speeds. In addition, they usually operate in harsh environments and in tight spaces. This requires compact connectors with 1.27 mm [0.050 in.] pitch or less. High-density miniature connectors are used for their design flexibility higher speed capabilities.

Where machines must transmit power and data from a stationary structure to a rotating axis, the connections often rely on slip rings. They are common in wind turbines and packaging machinery where continuous rotating motion is present. Slip rings are used in place of industrial motion cables to supply power and data in these rotating devices.

Filed Under: Basics, DW sync

Reader Interactions

Comments

  1. Rhianna Hawk says

    September 10, 2018 at 10:32 am

    My workplace is replacing our old control system on our conveyors with a new one that will be designed third-party for easier access and whatnot. Knowing what goes into the system is really helpful, and I agree that industrial automation networks require greater amounts of data at higher speeds. I’ll have to ask and see if we’re using high-density miniature connectors like you describe in our new control system, and if not, maybe suggest we get some.

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