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 The dualistic world of analog and digital feedback is fading fast. Digital signals are beginning to take precedence for communication between servo drives and servo motors, according to IHS senior analyst Michelle Figgs. Analog is losing its traditional role because it is susceptible to electromagnetic interference, requiring feedback devices to use two separate cables, one for feedback one for power, increasing installation costs. Single-cable encoder technology, hard to find until recently, is suddenly available from several suppliers. Heidenhain, Beckhoff, and igus have all made product announcements in just the past few months, and these follow recent unveilings from Kollmorgen and Helukabel.
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Re: The Swift Switch to Single-cable Servo
