Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Power supply device of PLC system

A system power supply and power supply technology, applied in the direction of circuit devices, electrical components, AC network circuits, etc., can solve the problems that the PLC power supply system cannot work reliably and continuously, and achieve the effect of reducing power failure of the PLC system, quickly isolating faults, and widely used

Inactive Publication Date: 2018-08-21
NANJING IRON & STEEL CO LTD
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to overcome the shortcoming that the PLC power supply system in the prior art cannot work reliably and continuously, and provide a PLC system power supply device, which can ensure the quality of the system power supply when the PLC system mains power grid fluctuates; When there is a power failure, the power supply of the PLC system is uninterrupted; when the UPS power supply fails and loses the ability to switch bypasses, the uninterrupted power supply of the PLC system is guaranteed

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Power supply device of PLC system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] This embodiment provides a power supply device applied to the PLC system in the iron and steel production field, and its structure is as follows: figure 1 shown.

[0014] The power supply device adopts two power sources to supply power for the PLC system, one is 1# power supply, and the other is 2# power supply (mains power). 1# power supply and 2# power supply come from different transformers. The two power supplies are mutually backup. When one power supply loses power, it will automatically switch to the other power supply to supply power to the PLC system.

[0015] The UPS power is taken from the 1# power supply, and the output of the UPS is connected to the A channel of the AP7723 power distributor. At the same time, the bypass power supply of the UPS is also taken from the 1# power supply. The 2# power supply enters the B circuit of the AP7723 power distributor. The output of the power distributor is connected to the general incoming line of the power supply o...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a power supply device of a PLC system, which is characterized by comprising a first power supply, a second power supply, an UPS and a power supply distributor; the first powersupply and the second power supply are from different transformers; wherein the first power supply is the power supply of the UPS and the UPS by-pass, and the output of the UPS is connected to the branch A of the power supply distributor; the second power supply is connected with the branch B of the power supply distributor; the output of the power supply distributor is connected to the whole input line of the power supply of the PLC control cabinet. The device can greatly reduce the power failure of the PLC system caused by power loss or UPS power failure, can quickly isolate faults, repair the fault equipment under the condition of uninterrupted power supply of the PLC system, can improve the stable supply of the energy medium and ensure the continuity of production.

Description

technical field [0001] The invention relates to a power supply device, in particular to a device for providing reliable power supply to an automation system of a production device. Background technique [0002] PLC systems are widely used in production lines in various industrial fields, and the usual power supply method uses UPS to power PLC systems. In the case of mains power failure, grid fluctuations, etc., it can ensure the continuous operation of the PLC system. [0003] With the improvement of the degree of automation of the production line, higher requirements are put forward for the continuous work of the PLC system. Looking back at the many equipment accidents caused by PLC system power outages, the above-mentioned power supply mode of the PLC system cannot guarantee the continuous operation of the PLC system when one power supply fails or the UPS fails: [0004] 1. When the UPS power supply loses power, it will cause a power outage in the PLC system. [0005]...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/00
CPCH02J3/0073
Inventor 李耀驹季成祥孙雯黎福明
Owner NANJING IRON & STEEL CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com