MITSUBISHI inverter FR-E720 series.
Voltage level: 3 phase 200V.
Frequency converter capacity: 1.5KW.
In order to ensure the reliability of production, all production machinery in the design of power with drive, there is a certain amount of surplus.
When the motor can not run under full load, in addition to meet the requirements of power driven,
The surplus torque increases the active power consumption, resulting in the waste of electric energy DBU-22K-4
Speed control method of fan and pump equipment traditional by regulating the entrance or exit of the baffle, valve opening to regulate air flow and water flow
, the input power is large, and a large amount of energy consumption in the baffle, the valve in the process of closure.
When using variable frequency control, if the flow rate is reduced, the speed of the pump or fan can be reduced to meet the requirements. Motor series: medium inertia, medium power.
Rated output power: 7.0kw.
Rated speed: 2000r/min.
Whether to bring the brakes: with.
Shaft end: Standard (straight).
Power supply: 400V type.
Protection level: IP65 (IP67).
Features: medium inertia from low speed to high speed three modes for selection, suitable for different applications.
Application examples: transmission machinery, robots, X-Y working platform.
High resolution encoder 131072p/rev (17 bit).
The encoder with high resolution ensures excellent performance and stability at low speed.
All motor dimensions are the same as before and all are compatible with the wiring. Input points: 32 points.
Input voltage: DC12/24V.
Current: 3/7mA.
Response time: 10ms.
Positive / negative sharing.
50 point terminal station.
System program memory for storing system program,
Including management procedures, monitoring procedures, as well as the user program to do the compiler to compile the process of interpretation.
Read only memory. Manufacturers use, content can not be changed, power does not disappear.
PLC selection with the development of PLC technology, more and more types of PLC products,
Function is becoming more and more perfect, and its application is more and more extensive.
Different series of different models of PLC has different performance, applicable occasions also have different emphasis,
Price also has a greater difference. Therefore PLC selection,
Under the premise of meeting the control requirements,
Should consider the best performance to price ratio, a reasonable choice of PLC.
Each scanning process. Focus on the input signal sampling. Focus on the output signal to refresh.
Input refresh process. When the input port is closed,
Program in the implementation phase, the input end of a new state, the new state can not be read.
Only when the program is scanned, the new state is read.
A scan cycle is divided into the input sample, the program execution, the output refresh.
The contents of the component image register are changed with the change of the execution of the program.
The length of the scan cycle is determined by the three.
CPU the speed of executing instructions.
Time of instruction.
Instruction count.
Due to the adoption of centralized sampling.
Centralized output mode.
There exist input / output hysteresis phenomena, i.e., the input / output response delay.
DBU-22K-4 Operation manual/Instructions/Model selection sample download link: /searchDownload.html?Search=DBU-22K-4&select=5