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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IC670MDL240K GE Discrete input module
IC670MDL241J GE Network communication card
IC670MDL640 GE Safety system module
IC670MDL644 GE Protection output module
IC670MDL730 GE Digital input module
IC670MDL740 GE Control system module
IC670MDL740J GE Analog input module
IC670MDL930J GE Dual output module
IC670MDL930 GE Dual output module
IC670MDL930J GE Digital output module
IC670MDL930K GE Input module
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FC-QPP-0002 HONEYWELL Quad-core processor
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F8651X HIMA Optical fiber interface board
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D138-002-002 MOOG License Key
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CG6565/64-2L/8TE NMSControl system power supply
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07AC91D ABBOptical isolation module
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07YS03 GJR2263800R3ABB PLC module card
GJR5251300R0161 ABB Remote extender module
07KT93 GJR5251300R0161 ABB Remote extender module
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3BHE024577R0101ABBNetwork communication module
PM902F 3BDH001000R0001 ABBAC 900F CPU module
UFC760BE142 3BHE004573R0142 ABB Printed circuit board
UFC760BE143 3BHE004573R0143ABB Distributed I/O module
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