Add speed or feedback

Rotalink has introduced new low cost add on encoder/tacho units to generate speed and/or positional feedback from existing drive units.

The frame size currently available offers an encoder with a 48- or 50-line two channel quadrature output, thereby giving 192 or 200 pulses per revolution with signal processing.

Where a basic non-directional output is required, primarily for speed information, a tacho version is offered as a lower cost option. This unit features a 12-line disc running inside a single phototransistor type slotted switch.