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.
Display operation panel PFSK164
Display operation panel PFSK162 3BSE015088R1
Display operation panel PFSK162
Display operation panel PFSK160A 3BSE009514R1
Display operation panel PFSK160
Display operation panel PFSK152 3BSE018877R1
Display operation panel PFSK152 3BSE018877R1
Display operation panel PFSK152
Display operation panel PFSK151 3BSE018876R1
Display operation panel PFSK151 3BSE018876R1
Display operation panel PFSK151
Display operation panel PFSK142 3BSE006505R1
Display operation panel PFSK130 3BSE002616R1
Display operation panel PFSK102
Display operation panel PFSA146 3BSE008844R1
Display operation panel PFSA145 3BSE008843R1
Display operation panel PFSA140 3BSE006503R1
Display operation panel PFSA140 3BSE006503R1
Display operation panel PFSA140
Display operation panel PFSA103D
Display operation panel PFSA103C
Display operation panel PFRL101D-5KN
Display operation panel PFRL101D 5.0KN
Display operation panel PFRL101D
Display operation panel PFRL101C
Display operation panel PFRL101B-1.0KN
Display operation panel PFRL101B
Display operation panel PFRL101A-0.5KN 3BSE023314R0003
Display operation panel PFRL101A
Display operation panel PFRA101 3BSE003911R230
Display operation panel PFRA101
Display operation panel PFPA201 3BSE022827R1
Display operation panel PFPA201
Display operation panel PFEL113
Display operation panel PFEL112
Display operation panel PFEL111
Display operation panel PfeifferTPR280
Display operation panel PFEA113-65 3BSE050092R65
Display operation panel PFEA113-65 3BSE050092R65
Display operation panel PFEA113-65 3BSE028144R0065
Display operation panel PFEA113-65
Display operation panel PFEA113-65
Display operation panel PFEA113-20 3BSE050092R20
Display operation panel PFEA113-20 3BSE028144R0020
Display operation panel PFEA113-20
Display operation panel PFEA113
Display operation panel PFEA112-65 3BSE050091R65
Display operation panel PFEA112-65 3BSE030369R0065
Display operation panel PFEA112-65
Display operation panel PFEA112-20 3BSE050091R20
Display operation panel PFEA112-20
Display operation panel PFEA112-20
Display operation panel PFEA112
Display operation panel PFEA111-65 3BSE050091R65
Display operation panel PFEA111-65 3BSE050090R65
Display operation panel PFEA111-65 3BSE050090R65
Display operation panel PFEA111-65 3BSE028140R0065
Display operation panel PFEA111-65
Display operation panel PFEA111-65
Display operation panel PFEA111-65
Display operation panel PFEA111-20 3BSE050090R20
Display operation panel PFEA111-20 3BSE050090R20
Display operation panel PFEA111-20 3BSE028140R0020
Display operation panel PFEA111-20 3BSE028140R0020
Display operation panel PFEA111-20
Display operation panel PFEA111-20
Display operation panel PFEA111
Display operation panel PFEA101
Display operation panel PFCL301E
Display operation panel PFCL201CE-20KN
Display operation panel PFCL201CE
Display operation panel PFCL201C/CD
Display operation panel PFCL201C 10KN
Display operation panel PFCL201C 5KN 3BSE027070R5
Display operation panel PFCL201C 20KN
Display operation panel PFCL201C 10KN
Display operation panel PFCL201C
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