CN103760764A

CN103760764A - Master-slave controller switching circuit

Info

Publication number: CN103760764A
Application number: CN201310603194.XA
Authority: CN
Inventors: 康典; 吕景华
Original assignee: XI'AN HENGFEI ELECTRONIC TECHNOLOGY Co Ltd
Current assignee: XI'AN HENGFEI ELECTRONIC TECHNOLOGY Co Ltd
Priority date: 2013-11-26
Filing date: 2013-11-26
Publication date: 2014-04-30

Abstract

The invention relates to a switching circuit, especially to a master-slave controller switching circuit. The aster-slave controller switching circuit is characterized in that the circuit at least comprises a master control circuit, a first controller, a second controller, a second relay, a contactor, a control device, and a first relay; the master control circuit is electrically connected with the first relay by a drive circuit; a first switch K1 of the first relay is connected in series between a 220-V alternating current unit and a power supply terminal of the contactor; a second switch K2 of the first relay is connected in series between a 24-V direct current unit and a power supply terminal of the second relay; a first switch K3 corresponding to contactor is connected in series in a power supply loop of the first controller and the control device; or a first switch K3 corresponding to the contactor is connected in series in a power supply loop of the second controller and the control device. With the circuit, when a fault occurs at a main channel, quick switching to a standby channel can be realized, so that the system can work continuously.

Description

A kind of master-slave controller commutation circuit

Technical field

The present invention relates to commutation circuit, particularly a kind of master-slave controller commutation circuit.

Technical background

In the use procedure of servo extension set, often there are various use problems, in the middle of these problems, be the most seriously the access issues between control and motor.Because equipment needs continuity, therefore existing 1 generation servo extension set can not meet the demands, require servo extension set to possess continuity, and the function of reply catastrophic failure.In following national defence scientific research technical field, ejusdem generis equipment needs high reliability, so the more and more important role of continuity performer.

Summary of the invention

The object of this invention is to provide a kind of master-slave controller commutation circuit, to solve, while breaking down in main channel, can be switched to fast alternate channel and make system continue operation.

The object of the present invention is achieved like this, a kind of master-slave controller commutation circuit, it is characterized in that: at least comprise governor circuit 1, the first controller 2, second controller 3, the second relay 4, contactor 5, opertaing device 6, the first relay 7, governor circuit 1 is electrically connected to the first relay 7 by driving circuit, the first K switch 1 of the first relay 7 is serially connected in and exchanges between 220v and contactor 5 power ends, and the second switch K2 of the first relay 7 is serially connected between direct current 24v and the second relay 4 power ends; The first K switch 3(of contactor 5 correspondences often opens or is normally closed) be serially connected in the electric power loop of the first controller 2 and opertaing device 6; The first K switch 3(of contactor 5 correspondences is normally closed or often open) be serially connected in the electric power loop of second controller 3 and opertaing device 6; The 4th K switch 4(of the second relay 4 correspondences often opens or is normally closed) be serially connected in the electric power loop of the first controller 2 and opertaing device 6; The 4th K switch 4(of the second relay 4 correspondences is normally closed or often open) be serially connected in the electric power loop of second controller 3 and opertaing device 6.

The present invention, owing to adopting the first controller 2 and second controller 3 to switch fast, only has the first controller 2 or second controller 3 work when work, and second controller 3 or the first controller 2 power up standby.When a controller goes wrong, be switched to fast stand-by equipment.Make system continue operation.

Accompanying drawing explanation

Below in conjunction with embodiment accompanying drawing, the invention will be further described:

Fig. 1 is the embodiment of the present invention 1 circuit control principle drawing;

Fig. 2 is the embodiment of the present invention 2 circuit control principle drawings;

The circuit diagram of Fig. 3 governor circuit.

In figure, 1, governor circuit; 2, the first controller; 3, second controller; 4, the second relay; 5, contactor; 6, opertaing device; 7, the first relay; 8, the first current sensor; 9, the second current sensor.

Embodiment

Embodiment 1

As shown in Figure 1, a kind of master-slave controller commutation circuit, it is characterized in that: at least comprise governor circuit 1, the first controller 2, second controller 3, the second relay 4, contactor 5, opertaing device 6, the first relay 7, governor circuit 1 is electrically connected to the first relay 7 by driving circuit, the first K switch 1 of the first relay 7 is serially connected in and exchanges between 220v and contactor 5 power ends, and the second switch K2 of the first relay 7 is serially connected between direct current 24v and the second relay 4 power ends; The first K switch 3(of contactor 5 correspondences often opens or is normally closed) be serially connected in the electric power loop of the first controller 2 and opertaing device 6; The first K switch 3(of contactor 5 correspondences is normally closed or often open) be serially connected in the electric power loop of second controller 3 and opertaing device 6; The 4th K switch 4(of the second relay 4 correspondences often opens or is normally closed) be serially connected in the electric power loop of the first controller 2 and opertaing device 6; The 4th K switch 4(of the second relay 4 correspondences is normally closed or often open) be serially connected in the electric power loop of second controller 3 and opertaing device 6.

Embodiment 2

Normally closed or often open at the first K switch 3(of contactor 5 correspondences) be serially connected in the electric power loop of second controller 3 and opertaing device 6 and have the first current sensor 8, the first current sensor 8 is electrically connected to governor circuit 1, governor circuit 1, for detecting the duty of the first controller 2 by the first current sensor 8, switches to determine whether to carry out active.

Embodiment 3

At the 4th K switch 4(of the second relay 4 correspondences, often open or normally closed) be serially connected in the electric power loop of the first controller 2 and opertaing device 6 and have the second current sensor 9, the second current sensor 9 is electrically connected to governor circuit 1, governor circuit 1, for detecting the duty of second controller 3 by the second current sensor 9, switches to determine whether to carry out active.

When work, only have the first controller 2 or second controller 3 work, second controller 3 or the first controller 2 power up standby.

Described governor circuit 1 comprises: controller 101, communication interface 102, digital interface 103, display 104, clock circuit 105, memory 106 and keyboard circuit 107 and power supply 108, controller 101 is electrically connected to the first current sensor 8 and the second current sensor 9 by communication interface 102, by digital interface 103 and display 104, clock circuit 105, memory 106 and keyboard circuit 107 are electrically connected to, power supply 108 is supplied with controller 101, digital interface 103, display 104, clock circuit 105, the power supply of memory 106 and keyboard circuit 107, memory 106 comprises the data course being gathered by controller 101 under the first controller 2 and second controller 3 reference performances, data payload data and the data course of 101 pairs of Real-time Collections of controller are compared, to determine whether that carrying out active switches.

Claims

1. a master-slave controller commutation circuit, it is characterized in that: at least comprise governor circuit, the first controller, second controller, the second relay, contactor, opertaing device, the first relay, governor circuit is electrically connected to the first relay by driving circuit, the first K switch 1 of the first relay is serially connected in and exchanges between 220v and contactor power end, and the second switch K2 of the first relay is serially connected between direct current 24v and the second relay power end; The first K switch 3 that contactor is corresponding is serially connected in the electric power loop of the first controller and opertaing device; The first K switch 3 that contactor is corresponding is serially connected in the electric power loop of second controller and opertaing device; The 4th K switch 4 that the second relay is corresponding is serially connected in the electric power loop of the first controller and opertaing device; The 4th K switch 4 that the second relay is corresponding is serially connected in the electric power loop of second controller and opertaing device.