Description
hardware flow control. It is an ideal choice in the field of industrial automation.
[Introduction] PLC and frequency converter are two important electrical equipment in the field of industrial automation control. This book
combines the introductory knowledge of PLC and frequency converter. The main contents include introduction to PLC, PLC composition and
principle, and the use and application of PLC programming software. System development, basic instructions and applications, step instructions
and applications, functional instructions and use, the structure and principle of the frequency converter, the use of the frequency converter, as well as
the selection, installation and maintenance of the frequency converter.
What is a frequency converter ? Generally speaking, it is: AC – DC – AC (it can also be said to be rectifier first – then inverter). The frequency converter
that undergoes this process is also called AC-DC-AC frequency conversion. Currently, it is also used in various industries. One of the more commonly
used ones. In addition, there is also an AC-AC conversion, which is also called an AC converter.
1. What is a frequency converter?
Frequency converter is a power control device that uses the on-off function of power semiconductor devices to convert industrial frequency power into
another frequency. The frequency converter is mainly composed of rectifier (AC to DC), filtering, inverter (DC to AC), braking unit, drive unit, detection unit, microprocessing unit, etc.
The frequency converter is a device that converts industrial frequency power supply (50Hz or 60Hz) into AC power supply of various frequencies to
realize variable speed operation of the motor. The control circuit completes the control of the main circuit, and the rectifier circuit converts the AC
power into DC power. The DC intermediate The circuit smoothes and filters the output of the rectifier circuit, and the inverter circuit reverses the DC
power into AC power. For inverters that require a lot of calculations, such as vector control inverters, sometimes a CPU for torque calculation and some
corresponding circuits are needed. Variable frequency speed regulation achieves the purpose of speed regulation by changing the frequency of power supply to the motor stator winding.
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PLX32-EIP-MBTCP-UA server gateway
PLX32-EIP-104 Dual Ethernet ports
PLX31-EIP-ASCII communication gateway
PLX31-EIP-ASCII4 Four Port Communication Gateway
PLX31-EIP-MBS serial communication gateway
PLX31-EIP-MBS4 serial gateway
PLX31-EIP-MBTCP communication gateway
PLX31-EIP-SIE Industrial Ethernet
5210-DFNT-RIO I/O adapter
5201-DFNT-EGD Ethernet Global Data Gateway
P0922YU FPS400-24 Power Supply Foxboro
5201-DFNT-DNPM EtherNet/IP Gateway Module
SST-SR4-CLX-RLL-CC SST Serial In Chassis Module
SST-SR4-CLX-RLL SST Ethernet and Serial Communication Module
SST-PB3S-CLX-RLL-C SST Communication Module
SST-PB3S-CLX-RLL SST communication module
SST-PB3-REM-CC SST Linking Device EIP to PFB
SST-PB3-REM SST Linking Device EIP to PFB
SST-PB3-CLXT-RLL SST PB3 In Chassis Modul
SST-PB3-CLX-RLL-CC Scanner for PROFIBUS Networks
SST-PB3-CLX-RLL
SST-IBS-CLX-RLL
SST-ESR2-CLXT-RLL ETH/SER in Chassis Communication Module
SST-ESR2-CLX-RLL-C SST ETH/SER In Chassis Module
SST-ESR2-CLX-RLL Ethernet and serial communication modules
SST-ASI-SLC interface module
SST-ASI-CLX-S Interface communication module
SST-ASI-CLX communication module
PS56-LON-001 LonWorks Communication Interface Module
PC56-XP-IDE Modbus communication module
PS56-BAS-019 System communication module
MVI56-MNETC Communication module of TCP/IP protocol
MVI56-MNET ControlLogix Communication Module
MVI56-MBP Modbus Plus Dual Port Network Interface Module
MVI56-LTQ Valve Network Interface Module
MVI56-HART Multipoint Network Interface Module
MVI56-GSC interface module
MVI56-GEC Ethernet communication interface module
MVI56-EGD Ethernet network interface module
MVI56-DNPSNET Ethernet interface module
MVI56-DNP DNP 3.0 Master/Slave Network Interface Module
MVI56-DFCMR Master/Slave Network Interface Module
MVI56-DFCM communication module
MVI56-BSAPS Serial Slave Module
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