The main unit of the AS-i system
The response time of PLC is the interval between the time of the change of the external output signal of the PLC and the time of the change of the external output signal which is controlled by it,
Lag time, this is the time constant of the input circuit,
The time constant of the output circuit, the arrangement of the user statement and the use of the instruction,
The cycle scan mode of PLC and the way of PLC to refresh the I/O and so on FR-BU2-H220K
This phenomenon is called the I/O delay time effect.
Input status and input information input from the input interface,
CPU will be stored in the working data memory or in the input image register FR-BU2-H220K.
And then combine the data and the program with CPU .
The result is stored in the output image register or the working data memory,
And then output to the output interface, control the external drive. 4 channel.
Input: DCO~20mA DC-10~10V.
Output (resolution): 0~32000; -32000~32000; 0~64000; -64000~64000.
Conversion speed: 10ms/4 channel.
18 point terminal station.
Isolation between channels FR-BU2-H220K.
The possibility of expanding control with intelligent function .
At the same time, the channel isolation analog module realizes high isolation voltage,
Further improve the accuracy of the benchmark.
Provide support for process control using a general purpose programmable controller.
Flow meter, pressure meter, other sensors can be directly connected to analog input,
Control valve can also be directly connected to analog output.
Hardware and installation costs have been greatly reduced due to the need for an external isolation amplifier.
High insulation strength.
Can isolate electrical interference, such as current and noise, etc..
Standard analog input module.
Isolated analog input module.
No external isolation amplifier required.
Without the use of inter channel isolation analog modules.
Using the inter channel isolation analog module."MITSUBISHI inverter FR-F740P series.
Voltage level: three phase 400V.
Frequency converter capacity: 500KW.
The main circuit of the inverter can be divided into two categories in general: voltage type is the voltage source of the DC converter for AC inverter,
The filtering of the DC circuit is the capacitance; the current mode is the DC conversion of the current source to the AC inverter,
The DC loop filter is the inductor.
It is based on the overall effect of three-phase waveform generation,
In order to approach the ideal circular rotating magnetic field in the air gap of the motor,
A generation phase modulation waveform control inscribesthe polygon to approach the circle way.
After practice, it has been improved, that is, the introduction of frequency compensation, can eliminate the error of speed control;
By feedback estimation of flux amplitude, eliminating the influence of stator resistance at low speed, the output voltage and current closed loop,
In order to improve the accuracy and stability of the dynamic.
But there are many control circuit, and no torque is introduced, so the system performance has not been improved.
Frequency converter is a power control device which uses the power of the power semiconductor device to change the power frequency to another frequency,
Can realize the asynchronous motor soft start, variable frequency speed regulation, improve the operation precision, change the power factor, over current / over voltage / overload protection and other functions.
The use of frequency converter motor is in order to speed, and reduce the starting current.
In order to produce a variable voltage and frequency,
The equipment to the power of the AC power conversion to DC (DC), the process is called rectification.
The direct current (DC) is transformed into alternating current (AC) and its scientific term is "inverter" (inverter).
General inverter is the DC power supply inverter for a certain fixed frequency and a certain voltage of the inverter.
For the inverter as the frequency adjustable, adjustable voltage inverter, we called the inverter.
Inverter output waveform is simulated sine wave,
Is mainly used in three-phase asynchronous motor speed control, and also called frequency governor.
For the variable frequency inverter, which is mainly used in the testing equipment of instrument and meter,
To sort out the waveform, you can output the standard sine wave, called the inverter power supply FR-BU2-H220K.
The general inverter is 1520 times inverter price.
The main device caalled "inverter" because of the voltage or frequency of the inverter device ",
Therefore, the product itself is named "inverter", that is: inverter FR-BU2-H220K. "
FR-BU2-H220K Operation manual/Instructions/Model selection sample download link: /searchDownload.html?Search=FR-BU2-H220K&select=5