Photoelectric rotary encoder A42M is used to establish an informational link between the key machine components, industrial robots, comparators and DCC, NC or Digital Readout Units. It provides information about the value and direction of the motion.

The encoder is used in automatic control, on-line gauging, process monitoring systems, etc.

The absence of bearings and lubricants makes the encoder suitable for use in vacuum environment or when zero starting torque is required.

The encoder consists of two assemblies: rotor/hub and scanning unit.

The hub unit includes the grating disc fixed to bushing made from stainless steel.

The scanning unit includes the base made of hard anodized aluminium.

The base supports light source, reticle, photodiodes and other electronic components.

The stator of the encoder is fixed to an object by means of screws. The hub is mounted directly on the shaft.

Three versions of output signals are available:

• A42M-A - sinusoidal signals, with amplitude approx. 11 μApp;

• A42M-AV - sinusoidal signals, with amplitude approx. 1Vpp;

• A42M-F - square-wave signals TTL.