Detection method and device for two-phase motor, and device with storage function

Abstract

The invention discloses a detection method and device for a two-phase motor, and a device with a storage function. The two-phase motor employs a V-shaped connection, and comprises a UW winding and a VW winding. The detection method comprises the steps: inputting a detection DC current into the two-phase motor; measuring measured running values of the two-phase motor at a first rotation angle and asecond rotation angle, wherein the second rotation angle is ahead of the first rotation angle; obtaining equivalent operation values of the UW winding and the VW winding according to the measured running values; determining whether the measured running values or the equivalent running values meet a preset requirement or not; determining that the connection of the two-phase motor connection is abnormal if the measured running values or the equivalent running values do not meet the preset requirement. Through the above mode, the method effectively completes the power-on test of the two-phase motor, and improves the operation stability and safety of the motor.

Description

technical field [0001] The invention relates to the field of motors, in particular to a detection method and detection device for a two-phase motor, and a device with a storage function. Background technique [0002] At present, the pulling methods of computerized flat knitting machines in the market are mainly divided into roller type and lifting plate type. Among them, the pulling structure of roller type occupies a major share of the market. This type of computerized flat knitting machine does not have a lifting plate, and it takes a long time to start. Weaving, resulting in a lot of waste of yarn and time; the lifter type computerized flat knitting machine, the lifter holds the starting row of the knitted fabric, and pulls the knitted fabric downward at the beginning of weaving, which can greatly reduce the yarn loss. waste. [0003] However, this type of computerized flat knitting machine with a bottom plate adopts V-type wiring of two-phase motors, which has very stri...

AI Technical Summary

Problems solved by technology

[0003] And this kind of computerized flat knitting machine with a bottom plate adopts two-phase motor V-shaped wiring, which has very strict requirements on the wiring sequence of the motor port. Wrong wiring sequence, short circuit or open circuit of the motor will easily cause the motor to fail to work normally, and even damage the motor and the machine. cause serious damage

Images