MITSUBISHI inverter FR-F720 series.
Voltage level: three phase 200V.
Frequency converter capacity: 75KW.
When the ring is opened, the frequency converter is provided with a load of the motor when the motor is operated with a load at a given frequency,
The range of the motor speed in the rated slip ratio (1%~5%) changes.
For the requirements of relatively high precision, even if the load changes are also required to operate at a given speed of the occasion,
Inverter with PG feedback function can be used (selection).
If the given acceleration time is too short, the output frequency of the inverter is far more than the change of the speed (electric angular frequency),
Converter will be due to flow over the current trip, the operation stopped, which is called stall.
MITSUBISHI inverter series: FR-A800.
Voltage level: three phase 400V.
Power: 0.4kw.
SLD converter rated current: 2.3A.
Structure and function: Standard model.
Type: CA.
Substrate coating: have.
Excellent drive performance.
FR-A800 series equipped with the latest high-speed processor. Has better control performance and response speed,
Products to ensure stable and accurate operation in a wide variety of applications MITSUBISHI FR-F720-S75K
FR-F720-S75K
Enhanced real-time sensorless vector control and vector control functions, can meet the needs of various kinds of machinery and equipment.
For paper, textile, wire, a variety of tape and other products of the extension of the machine processing, linear speed control is essential MITSUBISHI FR-F720-S75K.
It can respond quickly to the change of production line speed and avoid the phenomenon of uneven winding.
This helps to achieve a stable supply of high quality products. Power: 5.5kw.
Purpose: high frequency braking resistor.
The use rate of the built-in regenerative brake of the transducer can be promoted.
When using the FR-ABR type brake resistor, the short circuit piece between the terminal PR-PX is removed MITSUBISHI FR-F720-S75K. Does not remove the short circuit chip will lead to overheating of the brake resistor.
The utilization rate of the regenerative braking should be less than the allowable brake use rate in the above table FR-F720-S75K MITSUBISHI.
With the operating frequency of the brake resistor to reach 300 degrees C or higher, it is necessary to take protective measures and cooling.
MYS type resistor can be used FR-F720-S75K MITSUBISHI. But please pay attention to the allowable brake use rate.
Do not remove the terminal P/+ and P1 between the short circuit chip, in addition to connecting the DC reactor.
The installation of thermal relay, to avoid overheating and burn the braking resistor. Power: 90kw.
Voltage: 200V FR-F720-S75K MITSUBISHI.
Sine wave filter.
The voltage and current of the motor can be adjusted to a sinne wave FR-F720-S75K.
The sine wave filter is installed to the output terminal of the inverter.
Applicable to FR-A820-03800 (75K) above and FR-A840-02160 (75K) and above frequency converter.
Sine wave filter is equivalent to the operationnal characteristics of the sine wave power driver, can provide the following benefits MITSUBISHI FR-F720-S75K.
Low noise.
No surge current.
Reduce motor loss (standard motor).