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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RELIANCE 805427-1S Resistance scaling module
RELIANCE 805405-5R Field power module
RELIANCE 805405-3R SF3000 Single-Phase Field Power Module
RELIANCE 805405-1R Power Module
RELIANCE 805403-3R field power module
RELIANCE 805403-2R Resistor Scaling Module
RELIANCE 805403-1R Resistor Scaling Module
RELIANCE 805402-R Automax Distributed Power System
RELIANCE 805401-S 3-Slot PMI Rack assembly
LAM Research 605-109114-004 GE V7668A-132L00W04 4-Port Gigabit Ethernet Card Module
RELIANCE 805401-7R 4-Slot Parallel Gate Amplifier Rack
RELIANCE 805401-3S AutoMax Distribution Power System
RELIANCE 805401-2S Power Module
RELIANCE 804100-RX Remote I/O Head module
RELIANCE 804100-RV complete module
RELIANCE 61C613 analog input module
RELIANCE 61C605 8-Channel Isolated Thermocouple Module
RELIANCE 61C544 RTD module
RELIANCE 61C542 16 Channel Input Module
RELIANCE 61C516 AC/DC Input Module
LAM Research 605-048878-001 GE FANUC VME-7671-421000 SBC Board
RELIANCE 61C540 16-Point Input Module
RELIANCE 61C515 16-Bit Input Module
RELIANCE 61C501 Input Module
RELIANCE 61C500 module
RELIANCE 61C366 Analog Output Module
RELIANCE 61C351Input module simulates track card
RELIANCE 61C365 Output Module
RELIANCE 61C351 Input Module Analog Rail Card
RELIANCE 61C350 I/O Module
RELIANCE 61C345 Analog Input Module
RELIANCE 61C346 Analog Rail created
RELIANCE 61C326 PLC interface module
RELIANCE 61C23 AutoMax Local I/O headers created by the DCS system
RELIANCE 61C22 Local I/O Head made
RELIANCE 58820 AutoMax DCS system designed by MBCN
RELIANCE 57C570 AutoMax PC3000 Processor
RELIANCE 57C565 Optional string andante
RELIANCE 57C560 PC3000 processor
RELIANCE 57C554 Remote I/O Shark Interface Module
RELIANCE 57C494 Power Supply Module
RELIANCE 57C493 Automax Power Supply
RELIANCE 57C491 Supply module
RELIANCE 57C463 Frequency Event Counter Module
RELIANCE 57C446 PLC Module
RELIANCE 57C445 PC link interface
RELIANCE 57C443 Remote I/O scanning module
RELIANCE 57C442 Interface Module
RELIANCE 57C441 created Modbus Plus Module
RELIANCE 57C440 Ethernet Communication Module
RELIANCE 57C439 7010 Automax processor
RELIANCE 57C435A AutoMax Processor Module
RELIANCE 57C435 7010 Processor Module
RELIANCE Processor Module 57C431
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