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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5SHX1445H0001 5SXE05-0152 ABB
5SHX1445H0001 3BHB003230R0101 ABB
5SHX1445H0001 3BHL000391P0101 3BHB003230R0101
5SHX1445H0001 3BHL000391P0101 ABB
5SXE05-0152 IGCT module ABB
3BHB003230R0101 IGCT module ABB
3BHL000391P0101 IGCT module ABB
5SHX1445H0001 IGCT module ABB
3BHL000387P0101 IGCT module ABB
5SHX1445H0002 IGCT module ABB
5SHX1445H0002 3BHL000387P0101 ABB
5SHX14H4502 3BHB003230R0101 5SXE05-0152 3BHB003023P201AEND:B
5SHX14H4502 3BHB003230R0101 5SXE05-0152
5SHX14H4502 5SXE05-0152 ABB
5SHX14H4502 3BHB003023P201AEND:B
5SHX14H4502 3BHB003230R0101 ABB
3BHB003023P201 AEND:B IGCT module
3BHB003230R0101 IGCT module ABB
5SHX14H4502 IGCT module ABB
3BHL000390P0104 IGCT module ABB
5SHX1960L0004 IGCT module ABB
5SHX1960L0004 3BHL000390P0104 ABB
5SHX2645L0004 5SXE04-0150 GVC707AE01
5SHX2645L0004 3BHB003154R0101 ABB
5SHX2645L0004 3BHL000389P0104 3BHB003154R0101
5SHX2645L0004 3BHL000389P0104 ABB
5SXE04-0150 GVC707AE01 ABB
3BHB003154R0101 IGCT module ABB
3BHL000389P0104 IGCT module ABB
5SHX2645L0004 IGCT module ABB
336A4954ARP1 IGCT module ABB
5SHY3545L0003 IGCT module ABB
5SHY3545L0003 336A4954ARP1 ABB
5SHY3545L0005 336A4954ARP2 ABB
336A4954ARP2 IGCT module ABB
5SHY3545L0005 IGCT module ABB
GVC750BE101 IGCT module ABB
3BHE009681R0101 IGCT module ABB
3BHB013085R0001 IGCT module ABB
5SHY3545L0009 IGCT module ABB
5SHY3545L0009 GVC750BE101 ABB
5SHY3545L0009 3BHE009681R0101 ABB
5SHY3545L0009 3BHB013085R0001 ABB
5SHY3545L0009 3BHB013085R0001 3BHE009681R0101
5SHY3545L0009 3BHB013085R0001 3BHE009681R0101 GVC750BE101
5SHY3545L0010 GVC750BE101 ABB
5SHY3545L0010 3BHE009681R0101 ABB
5SHY3545L0010 3BHE009681R0101 GVC750BE101
5SHY3545L0010 3BHB013088R0001 3BHE009681R0101 GVC750BE101
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