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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PM851AK01 3BSE066485R1 ABB Processor Unit
PM864AK02 3BSE018164R1 ABB controller
3BSE018172R1 SB822 ABB battery module
DSAI130K20 3BNP004118R1 ABB analog input DSAI130
6100BZ10010B ABB module
EL3020 ABB Power supply Unit
DSBC110 57310256-E ABB module
SPHSS13 ABB Bailey Hydraulic Servo Module
UFC719AE01 3BHB003041R0101 ABB control unit
PPA322B HIEE300016R2 HIEE400235R1 ABB control unit
PMA323BE HIEE300308R1 ABB board
DSPC174 3BSE005461R1 ABB Analog input module
DSSB140 48980001-P ABB power module
PFSK160A 3BSE009514R1 ABB processor board
PFSK162 3BSE015088R1 ABB module
PFSK164 3BSE021180R1 ABB Analog I/O Modules
PFSK130 3BSE002616R1 ABB module
IC693MDL644 GE Series 90-30 DC Voltage Input Module
IC693MDL645CA GE Programmable Logic Controllers
IC693MDL645 GE Series 90-30 module
IC693MDL645LT GE Programmable Logic Controllers
IC693MDL646 GE Series 90-30 Discrete Input module
IC693MDL646LT GE 40 Volts DC rated PLC
IC693MDL646CA GE Series 90-30, 24 VDC Positive / Negative Logic discrete input module
IC693MDL648 GE 40 Volts DC rated PLC
IC693MDL654CA GE 5/12 volt DC (TTL) Positive/Negative Logic Input module
IC693MDL653 GE Series 90-30, 24 VDC Positive / Negative Logic discrete input module
IC693MDL654 GE 5/12 volt DC (TTL) Positive/Negative Logic Input module
IC693MDL654LT GE Series 90-30 Discrete Input module
IC693MDL655CA GE Series 90-30 Discrete Input module
IC693MDL655 GE Series 90-30 Discrete Input module
IC693MDL655LT GE Series 90-30 Discrete Input module
IC693MDL660 GE Series 90-30, 24 VDC Positive / Negative Logic discrete input module
IC693MDL740 GE Series 90-30 module
IC693MDL734LT GE 12/24 positive logic DC output module
IC693MDL740CA GE OUTPUT MODULE
IC693MDL741 GE 12/24 positive logic DC output module
IC693MDL740LT GE digital I/O module
IC693MDL741CA GE 12/24 positive logic DC output module
IC693MDL741LT GE digital I/O module
IC693MDL742 GE Protection (ESCP) Output module
IC693MDL748 GE digital I/O module
IC693MDL742LT GE Series 90-30, 12/24 VDC Positive logic output module
IC693CPU351 GE Series 90-30 component
IC693MDL750 GE digital I/O module
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