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A motor linkage control method based on a motor protector

A technology of linkage control and protector, which is applied in the direction of multiple motor speed adjustments, can solve the problems of enterprises that are not suitable for small-scale production and high production costs, achieve good functional highlights, meet factory needs, and reduce production costs.

Inactive Publication Date: 2019-01-11
HENAN SENIOR ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the industrial motor linkage is realized by the method of PLC, but the production cost is very high, and it is not suitable for small-scale production enterprises. Therefore, the present invention designs a motor linkage control method based on the motor protector

Method used

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  • A motor linkage control method based on a motor protector

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Embodiment Construction

[0014] As shown in the figure: a motor linkage control method based on a motor protector. A motor protector 2 is installed on each motor 1 that is linked to each other. The motor protector 2 controls the on-off of the contactor 3 electrically connected to the motor 1. To control the rotation and stop of the motor 1, and each motor protector 2 is provided with a 485 port 201, a wireless module 202 and a timer, the 485 port 201 is electrically connected to each other through a 485 line, and the wireless network of the wireless module 202 covers the entire interconnected motor protector.

[0015] For motor protectors 2 that are relatively close to each other, the linkage control is relatively simple. By connecting the respective 485 ports 201 in series, the hardware part can be completed. For motor protectors 2 that are far away from each other, the motor protector 2 can External or built-in WiFi module or ZigBee module, and realize a wide range of wireless network coverage throu...

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Abstract

The invention relates to a motor linkage control method based on a motor protector. The motor protector is mounted on each of the interconnected motors, the motor protector controls the rotation and stopping of the motor by controlling the on-off of the contactor KM connected to the electric machine, and each motor protector is provided with a 485 port, wireless module and timer, 485 ports are electrically connected with each other through 485 wires, the wireless network of wireless module covers the whole interconnected motor protector, when the motor is in abnormal state, the motor protectorissues a local stop command, disconnects the relay to cause the contactor KM to lose power, and the motor stops running; at the same time, the motor protector sends out the remote linkage control command to replace the traditional PLC linkage control method, which greatly reduces the production cost and is suitable for small-scale production enterprises.

Description

technical field [0001] The invention relates to the technical field of motor control in industrial production, in particular to a motor linkage control method based on a motor protector. Background technique [0002] The motor protector is also called the motor protector. Its function is to provide comprehensive protection for the motor. In the event of overtime start, overcurrent, undercurrent, phase failure, stalled rotor, short circuit, overvoltage, undervoltage, leakage grounding, three An alarm or protection device for phase unbalance, overheating, bearing wear, stator and rotor eccentricity, external fault, self-starting when power is received, and inverse time limit. For industrial sites, for coaxial motors or belt drive motors, after one of the abnormal motors is powered off and stopped by the motor protector, industrial production cannot continue, and the rest of the normal motors also need to be stopped at the same time, which requires state synchronization of some...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P5/46
CPCH02P5/46
Inventor 陈春华季振山刘少清王勇张祖超
Owner HENAN SENIOR ELECTRIC
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