Encoders and sensors
FAULHABER Motors are offered in combination with sensors and encoders. An encoder is a sensor for angle measurement that is usually used for speed or position control.
Incremental encoders transmit a specifi c number of uniformly distributed pulses per revolution. All FAULHABER Incremental Encoders have at least two channels: A and B. Both channels supply a square wave signal, shifted by 90 °e with respect to one another, i.e., one quarter cycle C. Through the shift of the pulses, the direction of rotation of the motor can be determined.
Unlike the incremental encoder, an absolute encoder determines absolute positions, not relative positions. After switching on the absolute encoder, an absolute return value is available for each position of the motor shaft. A distinction is made between single turn and multi turn encoders. The FAULHABER Absolute Encoders are single turn encoders. The FAULHABER Absolute Encoders support the SSI Interface with BISS-C Protocol. BISS-C supports communication with clock speeds of up to 2 MHz. Here, the absolute position value (DATA) is transferred in synch with a cycle (CLK) specifi ed by the controller.