S2 Product Description
The S2 series high-resolution optical shaft encoder is a non-contacting rotary to digital converter. Useful for position feedback or manual interface, the encoder converts real-time shaft angle, speed, and direction into TTL-compatible quadrature outputs with or without index. It operates from a single +5VDC supply.
The S2 is our first generation ball-bearing optical shaft encoder and is available for those customers who have designed it into their products; however, the S6 is recommended for new designs in place of the S2.
The S2 is designed to drive cables up to 10 feet long. For longer cable lengths, adding a PC4/PC5 differential line driver is recommended.
Three shaft torque versions are available. The standard torque version has a sleeve bushing designed to provide torque and feel ideal for front panel human interface applications.
The no torque added option has a sleeve bushing that does not intentionally add torque for low RPM applications where a small amount of torque is acceptable.
The ball-bearing version uses miniature precision ball bearings that are suitable for high-speed and ultra-low torque applications.
Connection to the S2 series encoder is made through a 5-pin standard connector. The mating connectors are available from US Digital with several cable options and lengths.