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Motor control device

A technology of motor control and control circuit, which is applied in the direction of motor generator/starter, starter of a single multi-phase induction motor, etc., and can solve the problems of motor start-stop control and single control mode of forward and reverse rotation.

Inactive Publication Date: 2013-02-06
DAZHOU POWER BUREAU SICHUAN ELECTRIC POWER +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a motor control device to solve the problem of single control mode for motor start-stop control and forward and reverse rotation

Method used

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Embodiment Construction

[0020] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0021] figure 1 and figure 2 An embodiment of a motor control device of the present invention is shown, figure 2 Between the medium power supply and the motor M, there are plastic contact QA, forward and normal open contact 1KM-3, reverse normal open contact 2KM-3 and thermal relay FR in sequence:

[0022] A motor control device, comprising a manual control circuit, a remote control circuit and a remote control device, the remote control device comprising a forward rotation signal sending module, a reverse rotation signal sending module and a stop signal sending module,

[0023] The manual con...

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Abstract

The invention discloses a motor control device. The motor control device comprises a manual control circuit and a remote control circuit, wherein the remote control circuit comprises a remote control normally closed contact 3KV-1, a remote control forwarding normally opened contact 1KV-2, a remote control reversing normally opened contact 2KV-2, a forwarding control relay 1KV, a reversing control relay 2KV and a stop control relay 3KV, wherein the remote control normally closed contact 3KV-1 is connected in series behind a manual control normally closed contact SR; the remote control forwarding normally opened contact 1KV-2 is connected in parallel with a manual control forwarding normally opened contact SA; and the remote control reversing normally opened contact 2KV-2 is connected in parallel with a manual control reversing normally opened contact SB. The motor control device not only has the function of manually and closely controlling the starting, the stopping, the forwarding and the reversing of the motor, but also has the function of remotely controlling the starting, the stopping, the forwarding and the reversing of the motor, so that diversified control is realized, and different control methods can be used according to different environments and requirements.

Description

technical field [0001] The invention relates to a motor control device. Background technique [0002] In the control mode of the motor, especially the control mode of the start-stop function and the forward and reverse function of the motor, it is generally controlled manually on the control board at a short distance, and the start-stop control is also controlled by a long-distance control method. However, the control of the motor cannot be simply a manual control or a remote control method, because the manual control method needs to go to the vicinity of the motor every time the operation is started and stopped, which is dangerous, and the remote control method can be far away Operations such as start and stop can be realized at a distance, but it is not possible to closely observe whether the working state of the motor is normal when it starts and stops. Contents of the invention [0003] The object of the present invention is to provide a motor control device, which so...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P1/40
Inventor 谯兴宇
Owner DAZHOU POWER BUREAU SICHUAN ELECTRIC POWER
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