Panel Builder System Integrator

Posital

January 22, 2018

Rotary encoder specialist POSITAL has expanded its interface offerings for its magnetic Kit Encoders, launched with great success last year, with support for the non-proprietary open-source BiSS Line communication protocol. This enables the practical implementation of single-cable technology, which is becoming increasingly popular with motor and robot manufacturers. POSITAL’s easy-to-install motor feedback kits, which feature 17-bit electronic resolution, bridge the gap between simple resolvers and more complex and expensive optical encoders for servomotors, robot joints and other applications where absolute rotary position feedback is required.

Single-cable technology involves the transmission of power and encoder signal in a single cable. The one-cable approach offers significant benefits for smaller motors where the placement of two connectors has always been awkward because of the lack of space. Moreover, reduced cabling reduces costs, while reducing the number of connectors reduces susceptibility to connector failures. A special feature of the BiSS Line interface is the implementation of the Forward Error Correction function (FEC), which improves availability of data communications, even with faulty cables and plug connections. "All in all, BiSS Line is an ideal interface for servomotors - and not just for cost reasons, but also for optimized performance," says Christian Fell, POSITAL’s VP of Technology and General Manger for the Americas. A 4-wire solution (with separate conductors for communication and power supply) or a 2-wire variant (with combined communication and instrument power supply on a wire pair), are also available, based on the same communications protocols.

From their original introduction, the new motor feedback kits were available with vendor-neutral digital communication interfaces such as BiSS-C or SSI for absolute measurements. "A number of optical feedback systems on the market make use of proprietary interfaces such as Hiperface or Endat, which means an ongoing dependency on the encoder manufacturer. We deliberately took a different approach," emphasizes Fell. "We are whole-hearted advocates of open-source interfaces - and stick to them consistently." POSITAL’s commitment to the open-source strategy is affirmed by the fact that the encoder manufacturer is a founding member of the BiSS Association e.V. This new user organization, founded at the end of September, is committed to promoting the distribution of the free-of-charge BiSS family of open-source communication protocols worldwide. (http://www.biss-interface.com)

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 Path to North American Approval of Uncertified Electrical Products

CSA Seminar ft

Go HERE to register

Unique circumstances sometimes make it challenging, impractical, or even impossible for products to undergo the traditional certification process. This could be due to new technology that does not fit within a current standard, custom or imported equipment or impracticality due to limited volume production runs. Additionally relocating, modifying or refurbishing equipment introduces additional compliance requirements that if ignored can prevent a product from being placed in service.

In these unique situations, contractors and manufacturers of electrical products need to understand the steps to take to avoid having equipment red-tagged and prevented from being connected or installed at the job site. Go HERE to register

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PBSI Littelfuse logo seminar 400Littelfuse, Inc., a global manufacturer of technologies in circuit protection and power control, invites plant engineers, facility managers, and maintenance professionals to join our special arc-flash webinar on how to cost-effectively protect against catastrophic arc-flash events. The webinar will take place on Tuesday, February 26, 2019 from 1:00 PM to 2:00 PM Central Standard Time.

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