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 DSCS140 57520001-EV/10
Display operation panel DSCS131 57310001-LM
Display operation panel DSCS131
Display operation panel DSCS117
Display operation panel DSCS116 57520001-BZ
Display operation panel DSCS-116
Display operation panel DSCS116
Display operation panel DSCS115
Display operation panel DSCQ315
Display operation panel DSCL110A
Display operation panel DSCL110
Display operation panel DSCI112
Display operation panel DSCG071S64U38-5
Display operation panel DSCB-01C
Display operation panel DSCA325
Display operation panel DSCA310
Display operation panel DSCA190V 57310001-PK
Display operation panel DSCA190V
Display operation panel DSCA180B
Display operation panel DSCA180A
Display operation panel DSCA170
Display operation panel DSCA130
Display operation panel DSCA-125A
Display operation panel DSCA125A
Display operation panel DSCA125
Display operation panel DSCA124
Display operation panel DSCA11457510001-AA
Display operation panel DSCA114 57510001-AA
Display operation panel DSCA114
Display operation panel DSBSN001
Display operation panel DSBC176 3BSE019216R1
Display operation panel DSBC176 3BS019216R1
Display operation panel DSBC176
Display operation panel DSBC176
Display operation panel DSBC174 3BSE012211R1
Display operation panel DSBC174
Display operation panel DSBC172 57310001-KD
Display operation panel DSBC172 57310001-KD
Display operation panel DSBC172
Display operation panel DSBC170
Display operation panel DSBC-111
Display operation panel DSBC-110
Display operation panel DSBBN002-0
Display operation panel DSBBN001-0
Display operation panel DSBB175
Display operation panel DSBB175
Display operation panel DSBB170AM
Display operation panel DSBB170
Display operation panel DSBB160M
Display operation panel DSBB110A 57330001-Y
Display operation panel DSBB110A 57330001-Y
Display operation panel DSBB110A
Display operation panel DSBB110
Display operation panel DSBB107
Display operation panel DSBB104M
Display operation panel DSBB102
Display operation panel DSAX452
Display operation panel DSAX452
Display operation panel DSAV-111-2668-184-261
Display operation panel DSAV111 57350001-CN
Display operation panel DSAV-111
Display operation panel DSAV111
Display operation panel DSAV110
Display operation panel DSAO301
Display operation panel DSAO130A 3B3E018294R1
Display operation panel DSAO130A
Display operation panel DSAO130
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