Robust magnetic encoders offer increased application flexibility

09-02-2022 | Variohm | Test & Measurement

Available in the UK from Variohm EuroSensor is Wachendorff Automation's new variant of its industrial-grade rotary encoders featuring a freely definable pulse count. The new WDGP series provides any number of output pulses from 1 to 16,384 PPR as TTL or HTL quadrature A and B channels and a freely configurable zero pulse (N). Using IP67 protection class stainless-steel housings in a choice of 36mm and 58mm diameters with industry-standard mounting options, these high accuracy incremental encoders are based on a patented magnetic sensor technology that provides durability and extremely high resistance to shock, vibration and undesirable shaft loading.

With its freely definable pulse count, the new series encoder provides users with a convenient alternative against standard output options that could lead to more complex control electronics or software calculation. Application flexibility is also aided by an input power requirement from 4.75VDC to 32VDC, reverse polarity, and short circuit protection. The maximum pulse frequency is 600 kHz for the HTL version while the TTL option offers 1 MHz. The HTL variant also offers inverted output signals.

The 36mm diameter model is offered with a choice of servo flange, round flange, and screw flange mountings – a special servo flange version incorporates IP67 plus IP69K protection rating for use in high-pressure washdown/steam cleaning applications. A version with an elevated radial and axial shaft loading to 300N is also offered. The 58mm diameter model is available with servo flange or clamping flange options. Both sizes deliver a choice of shaft diameters; a custom design service can be made available for OEM applications.

The new encoder is based on the same robust and durable mechanical design used across the company's wide range of rotary encoders. Generous axial and radial shaft loading and a wide operating temperature range of -40C to +85C combine for durability, high reliability, and long life for the most extreme rotary position feedback tasks in heavy engineering, off-road vehicles, agricultural machinery and more.