MITSUBISHI inverter FR-A740 series.
Voltage level: 3 phase 400V.
Frequency converter capacity: 1.5KW.
FR-A700 converter products are suitable for all kinds of high load requirements of the equipment FR-A5AR PDF.
Such as lifting, lift, printing and dyeing, printing and dyeing, material coiling and other general occasions.
High level driving performance.
Unique sensorless vector control mode,
A wide variety of mechanical equipment can be operated at high precision in the super low speed region without the need of the encoder FR-A5AR
With torque control mode,
And in the speed control mode can use the torque limit function FR-A5AR PDF.
With vector control function (with encoder),
Frequency converter can achieve position control and fast response, high precision speed control (zero speed control, servo lock, etc.) and torque control. Power: 7.5kw.
Purpose: to suppress the powerr harmonics FR-A5AR Manual.
Improve the power factor, reduce the input side of the high harmonic current FR-A5AR PDF.
Make sure that this option is installed in the FR-A820-03800 (75K) and FR-A840-02160 (75K) and above capacity and above capacity.
At the same time the installation options in the use of 75kW and above motor. (the IP55 series has a built-in DC reactor.)
According to the motor power used to select the DC reactor MITSUBISHI INSTRUCTION MANUAL.
(when the inverter capacity is greater than the motor capacity, is still based on the motor capacity to choose.) Power: 11kw.
Purpose: high frequency braking resistor.
The use rate of the built-in regenerative brake of the transducer can be promoted MITSUBISHI INSTRUCTION MANUAL.
When using the FR-ABR type brake resistor, the short circuit piece between the terminal PR-PX is removed. 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 MITSUBISHI INSTRUCTION MANUAL.
With the operating frequency of the brake resiistor to reach 300 degrees C or higher, it is necessary to take protective measures and cooling FR-A5AR INSTRUCTION MANUAL.
MYS type resistor can be used. But please pay attention to the allowable brake use rate.
Do not remove the terminal P/+ and P1 between thhe short circuit chip, in addition to connecting the DC reactor FR-A5AR Manual.
The installation of thermal relay, to avoid overheating and burn the braking resistor.