Rotary encoder

The speed of the rotary encoder is integrated the opto-mechatronics technologies displacement sensor. When rotary encoder shaft drives the rotating grating, light emitted by the luminous element is slit grating plate cutting into intermittent light, and by generating the initial signal receiving components. The signal after the subsequent processing circuit, the output pulse signal or code. Is characterized by small volume, light weight, many varieties, full functions, high frequency response, high resolution, small torque, low consumption, stable performance, reliable service life is long, etc.

Signal output

Signal output sine wave (current or voltage), square wave (TTL, HTL), open collector (PNP and NPN), push-pull type A variety of forms, including TTL for long term differential drive (symmetry A, A -, B, B -, Z, Z) -, HTL also calls the push-pull type, push-pull output, encoder signal receiving device interface should correspond to the encoder.

Signal connection - encoder pulse signal general connection counter, PLC, computer, PLC and computer connection module with low speed module with high speed module, have low have high switch frequency.

Single-phase connection, such as used in the single direction count, the direction of velocity.

A. two connected for forward and reverse counting, direction and speed.

A, B and Z three-phase connection, used to refer to A fixed position measuring.

- A, A, B, B -, Z, Z - links, due to the negative signal connection with symmetry, in subsequent differential input circuit, the common mode noise suppression, only take useful differential mode signal, so its anti-interference ability is strong, can transmit far distance.

For TTL with symmetric negative signal output of the encoder, the signal transmission distance up to 150 meters.

Rotary encoder by precision components, therefore when the impact of large, it might damage the internal functions, use should be sufficient attention.