A disconnection detection device, an encoder and a disconnection detection method thereof

Abstract

The invention discloses a wire breakage detection device, an encoder and a wire breakage detection method thereof. The device comprises: a detection unit for acquiring an output signal of an absolute photoelectric encoder; a processing unit for processing the output signal of an absolute photoelectric encoder processing to obtain the level signal of the absolute photoelectric encoder; the analysis unit, based on the level signal of the absolute photoelectric encoder, extracts the characteristic information of the absolute photoelectric encoder; and, combines the characteristic information of the absolute photoelectric encoder with The setting information is compared, and if the difference between the characteristic information of the absolute photoelectric encoder and the setting information is not within the set difference range, it is determined that the absolute photoelectric encoder has a disconnection phenomenon. This solution can solve the problem that if the disconnection of the absolute encoder is not found in time, it will cause damage to the servo drive equipment or even cause an accident. the effect of the accident.

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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