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.
Display operation panel SDCS-COM-8
Display operation panel SDCS-AMC-DC2
Display operation panel SD853
Display operation panel SD853
Display operation panel SD834 3BSC610067R1
Display operation panel SD834
Display operation panel SD834
Display operation panel SD833 3BSC610066R1
Display operation panel SD833
Display operation panel SD833
Display operation panel SD832
Display operation panel SD832
Display operation panel SD831
Display operation panel SD831
Display operation panel SD831
Display operation panel SD823
Display operation panel SD822Z
Display operation panel SD822
Display operation panel SD821
Display operation panel SD821
Display operation panel SD812V1
Display operation panel SD812F-Z
Display operation panel SD812F 3BDH000014R1
Display operation panel SD812F
Display operation panel SD812F
Display operation panel SD812F
Display operation panel SD802F
Display operation panel SD802F
Display operation panel SD2048DL
Display operation panel SD1024D-2-S
Display operation panel SCYC55830 58063282A
Display operation panel SCYC55830
Display operation panel SCYC55830
Display operation panel SCYC51090 58053899E
Display operation panel SCYC51040 58052680E
Display operation panel SCYC51020 58052582H
Display operation panel SCYC51020 58052582G
Display operation panel SCYC51020
Display operation panel SCYC51010 58052515G
Display operation panel SCYC51010
Display operation panel SCC-CEL3020
Display operation panel SCC-C
Display operation panel SCB-01 3HNA011334-001
Display operation panel SC610 3BSE001552R1
Display operation panel SC610 3BSE001552R1
Display operation panel SC610
Display operation panel SC540 3BSE006096R1
Display operation panel SC520M 3BSE016237R1
Display operation panel SC520 3BSE003816R1
Display operation panel SC513
Display operation panel SC513
Display operation panel SC510 3BSE003832R1
Display operation panel SC510
Display operation panel SB822 3BSE018172R1
Display operation panel SB822
Display operation panel SB822
Display operation panel SB821
Display operation panel SB808F
Display operation panel SB808F
Display operation panel SB512
Display operation panel SB512
Display operation panel SB510 3BSE000860R1
Display operation panel SB510
Display operation panel SB510
Display operation panel SAM3.0
Display operation panel SAFT164
Display operation panel SAFT-123-PAC
Display operation panel SAFT112POW
Display operation panel SAFT111POW
Display operation panel SAFT110
Display operation panel SAFT110
Display operation panel SAFT103
Display operation panel SAFT103
Display operation panel SA9923A-E
Display operation panel SA9923A-E
Display operation panel SA920S
Display operation panel SA920N
Display operation panel SA920N
Display operation panel SA920B
Display operation panel SA911S
Display operation panel SA911N
Display operation panel SA911B
Display operation panel SA910S
Display operation panel SA811F-Z
Display operation panel SA811F 3BDH000013R1
Display operation panel SA811F
Display operation panel SA811F
Display operation panel SA811F
Display operation panel SA802F
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