Disconnection detection device, encoder and disconnection detection method thereof

Abstract

The invention discloses a disconnection detection device, an encoder and a disconnection detection method thereof. The device comprises: a detection unit, which acquires an output signal of an absolute photoelectric encoder; a processing unit, which is used for processing the output signal of the absolute photoelectric encoder to obtain a level signal of the absolute photoelectric encoder; an analysis unit, which is used for extracting characteristic information of the absolute photoelectric encoder based on the level signal of the absolute photoelectric encoder, and compares the characteristic information of the absolute photoelectric encoder with set information, and if a difference value between the characteristic information of the absolute photoelectric encoder and the set informationis not within a set difference value range, determines that disconnection occurs to the absolute photoelectric encoder. According to the scheme, the problems that servo driving equipment is damaged and even an accident occurs if disconnection of the absolute encoder is not found in time can be solved, and the effect of avoiding the damage and even accident of the servo driving equipment by realizing timely detection of the disconnection of the absolute encoder is achieved.

Description

technical field [0001] The invention belongs to the technical field of servo drives, and in particular relates to a wire breakage detection device, an encoder and a wire breakage detection method thereof, in particular to an absolute photoelectric encoder wire breakage detection system, an encoder and a wire breakage detection method thereof. Background technique [0002] Absolute encoders are widely used in the drive control of servo motors. If one phase of the absolute encoder is disconnected, the drive will not be able to control the motor normally. injury accidents. [0003] The above content is only used to assist in understanding the technical solution of the present invention, and does not mean that the above content is admitted as prior art. Contents of the invention [0004] The purpose of the present invention is to provide a wire breakage detection device, an encoder and a wire breakage detection method thereof to solve the problem that if the wire breakage of ...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a wire breakage detection device, an encoder and a wire breakage detection method thereof to solve the problem that if the wire breakage of the absolute encoder is not found in time, the servo drive equipment will be damaged or even an accident may occur. To solve the problem, achieve the effect of timely detection of absolute encoder disconnection to avoid damage to servo drive equipment or even accidents

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