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Daryl Keys, CET

Daryl started Industrial Drive Service in 1988. Before starting his own service, design, and build company, he worked for Saftronics and Reliance Electric. Through his career, Daryl has solved many drive issues and has extensive knowledge on the internal workings of drives and the external effects that they bring into control systems. Daryl is an active member of OACETT, and has held positions with CSA regulatory boards.

Recent Posts

Up Where the Air is Thin

Posted by Daryl Keys, CET on Mar 25, 2020 9:15:00 AM

Industrial Drive Service Inc. is a drive systems integrator business based in Hensall, Ontario. Most of their projects involve a motor, drive and a programmable logic controller. One of their niche markets is hoist controls used in the mining industry. In 1995 they were involved with a hoist installation in Peru. The project went well and resulted in many subsequent hoist projects, the latest being in 2019.

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VFD Design: How to connect contactor to motor using safety relays

Posted by Daryl Keys, CET on Dec 27, 2019 8:00:00 AM

In the early days of variable speed drives, Nema rated motor contactors were used. The more economical IEC rated contactor had not be introduced. As variable speed drive technology improved and sequencing the opening of the contactor to coordinate with the termination of current flow to the motor became reliable, the need for a contactor to break an arc took second place to the use of a contactor for isolation purposes. This meant that the more robust and more expensive Nema contactor was not required.

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Topics: VFDs, safety, motorcontactor

VFD Maintenance: Don't Get Caught With Unformed Capacitors!

Posted by Daryl Keys, CET on Dec 13, 2019 8:00:00 AM

I recently had a situation occur where a customer had a VFD fail and asked me to set up the spare in its place.

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Topics: electrolytic capacitors, VFDs

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