Patent ID: 7227329
Filing Date: 2007-06-05
Classification: G05B

Abstract:
1. A wire-saving optical encoder having servomotor identification information, comprising an optical transmitter, an optical receiver, rotary coding disc, fixed coding plate, a processing circuit and a mechanical body, and the processing circuit comprising: a microprocessor, for receiving a phase change signal (U, V, W) outputted from an encoder, and producing a servomotor ID code (ID CODE) internally; a multiplexer, for receiving an output signal of the microprocessor and a rotor operating signal (A, B, Z) outputted by the encoder; an identification driving signal coupled to an input terminal of the multiplexer for inputting signals; wherein the microprocessor outputs a signal to control the multiplexer to switch a signal transmission mode and collocate with the identification driving signal to transmit the produced servomotor ID code (ID CODE) and the phase change signal (U, V, W) by a serial output mode and then switch the transmission mode after the signals are transmitted, and a same signal transmission line continues transmitting the rotor operating signal (A, B, Z).