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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2711-T10C20L1 PanelView Standard Operator terminal
1769-L16ER-BB1B CompactLogix 5370 Ethernet Controller
DKC11.3-100-7-FW Servo controller
DSTC190 57520001-ER connection unit
DSTC120 57520001-A Connection unit
DSAI110 57120001-DP analog input board
DSSB146 48980001-AP Battery module
DSSR116 48990001-FK boost voltage regulator
NTCF22 Terminal unit ABB
VE4022 KJ3243X1-BB1 Profibus module
IC695CHS007LT Slot 7 Universal backplane
IC695CPE305LT RX3i CPU
IC695PSD140LT Power module
5466-409 CPU module
8200-314 Digital Controller
ALR121-S00S1 Serial communication module
IC697PWR724F Power module
SR735-5-5-HI-485 feeder protection relay
3500/22-02-01-00 Transient data interface
3500/40-01-00 3500/40M front monitor
3500/92-0201-00 Communication gateway
TC-PCIC01 Controls the interface module
DS200GDPAG1AKF High frequency power supply board
DS200LDCCH1ANA Driver control/LAN communication board
DS200TCCBG88ED digital input/output board
TC-PRS021 Controls the processor module
TC-0DK161 Digital output PLC card
TC-FXX132 Experion 13 slot chassis
MC-TAOY22 80366177-175 Analog output board
MMS6823R Communication interface module
FBMSSW I/A series control card
XVME-660-716 The VMEbus PC is compatible with the processor module
XVME-675/19 PC/AT processor module
XVME-956/900 I/O Expansion bracket
MVI56E-GSC universal ASCII serial enhanced communication module
CE4003S2B6 Standard I/O terminal board
XVME-956/412 I/O Expansion bracket
CE4005S2B4 Standard I/O terminal board
3500/53-01 Overspeed detection module
80190-580-01-R drives the processor module
2711-B6C10 Operator terminal
3500/62-04-00 Process variable monitor
VMIVME-7645 vmebus board computer
MVME162-233 Dual-height VME module
DSAX110A 57120001-PC analog input/output board
9907-175 Load sharing module
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