Single interlock circuit for operation control in timing automatic conversion of forward and reverse rotation of motor

Abstract

The invention discloses a single interlock circuit for operation control in timing automatic conversion of forward and reverse rotation of a motor, belonging to the field of electric control. A control loop mainly includes a button switch SB1, a button switch SB2, a relay KM3, a contactor KM1, a contactor KM2, an electrifying time delay relay KT1 and an electrifying time delay relay KT2, wherein the single interlock circuit is characterized in that the elements are respectively connected in each branch circuit of each of the contact KM1 and the contactor KM2 in series through a group of normally opened and normally closed contacts in the electrifying time delay relays to form the single interlock circuit; the short circuit of a main loop of an electric motor when the control loop of the electric motor automatically converts forward rotation and reverse rotation can be effectively prevented, meanwhile, the operation time of forward rotation and reverse rotation of the electric motor can be adjusted, and the circuit is simple in structure and convenient to operate.

Description

technical field [0001] The invention relates to a single interlocking circuit for timing and automatic switching operation control of forward and reverse motors, which belongs to the field of electric control. According to the circuit, a simple control box can be made for controlling the regular operation of forward and reverse motors. Background technique [0002] In the current field of electrical control, there are many ways to control the operation of electric motors. Most of them are for commercial considerations. Most of them contain computers and the cost is high, which is not conducive to the on-site operation and maintenance of most ordinary workers. The control of reverse timing operation requires many applications, but its products are few; the training content of each electrical control circuit for students majoring in electricity in universities is too simple, and the knowledge learned by students has not been effectively, continuously and comprehensively integra...

AI Technical Summary

Problems solved by technology

[0002] In the current field of electrical control, there are many ways to control the operation of electric motors. Most of them are for commercial considerations. Most of them contain computers and the cost is high, which is not conducive to the on-site operation and maintenance of most ordinary workers. The control of reverse timing operation requires many applications, but its products are few; the training content of each electrical control circuit for students majoring in electricity in universities is too simple, and the knowledge learned by students has not been effectively, continuously and comprehensively integrated. Consolidate and expand practical application

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