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 OCAH 940181103
Display operation panel O3EX HENF315845R2
Display operation panel O3ES HENF445789R1
Display operation panel O3EId HENF452777R3
Display operation panel O3EHa HENF315087R2
Display operation panel O3EGb HENF315118R2
Display operation panel O3EEb HENF318176R1
Display operation panel O3ED
Display operation panel O3EC HENF442581R1
Display operation panel NXE100-1608SB
Display operation panel NXE1001-608DBW
Display operation panel NWX511a-2/R HESG112548R12
Display operation panel NUIM-62C
Display operation panel NU8976A99 HIER466665R0099 HIEE320693R0001
Display operation panel NU8976A
Display operation panel NU8976A
Display operation panel NTU-7U0
Display operation panel NTU-7Q2E
Display operation panel NTU7Q2E
Display operation panel NTU-7Q2
Display operation panel NTU-7Q1
Display operation panel NTU-7L0
Display operation panel NTU-7I6/48S1
Display operation panel NTU-7I6/24S1
Display operation panel NTU-7I4
Display operation panel NTU-7I1
Display operation panel NTU-7I0
Display operation panel NTU-7G7
Display operation panel NTU-7C9
Display operation panel NTU-7C7
Display operation panel NTU-7C6/MO
Display operation panel NTU-7C2
Display operation panel NTU-7C1
Display operation panel NTU-7B2/A
Display operation panel NTU-7B1/A
Display operation panel NTU-7B1
Display operation panel NTU-7B0
Display operation panel NTU-7A9/M1
Display operation panel NTU-7A9/M0
Display operation panel NTU-7A4/20MA
Display operation panel NTU-7A0/P
Display operation panel NTU-7A0/E
Display operation panel NTU-7A0
Display operation panel NTU-738A
Display operation panel NTU-716/48S3
Display operation panel NTU-716
Display operation panel NTU-715
Display operation panel NTU-7/6/48S1
Display operation panel NTTA01
Display operation panel NTST01
Display operation panel NTST01
Display operation panel NTSM01
Display operation panel NTSE01
Display operation panel NTRO02-A
Display operation panel NTRL03
Display operation panel NTRL02B
Display operation panel NTRL02A
Display operation panel NTRL01
Display operation panel NTR002-A
Display operation panel NTR002-A
Display operation panel NTPL01
Display operation panel NTMU02
Display operation panel NTMU01
Display operation panel NTMP01
Display operation panel NTMP01
Display operation panel NTMF01
Display operation panel NTMF01
Display operation panel NTLS01
Display operation panel NTLS01
Display operation panel NTHS03
Display operation panel NTHS03
Display operation panel NTHS03
Display operation panel NTFB01
Display operation panel NTDRO01
Display operation panel NTDO02
Display operation panel NTDO01
Display operation panel NTDI21-A
Display operation panel NTDI21-A
Display operation panel NTDI02
Display operation panel NTDI01
Display operation panel NTDI01
Display operation panel NTDI01
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