Mitsubishi VFD PROGRAMMER FR-PU07 and easy troubleshooting

Mitsubishi VFD PROGRAMMER FR-PU07 & error code and easy troubleshooting 

The prevalent drawback is that the input power factor is low, the harmonic current is sizably voluminous, and the DC circuit needs an immensely colossal energy storage capacity,
Renewable energy and can not be victualed back to the potency grid, which can not be carried out in the four-quadrant operation.
It can achieve a puissance factor of L, the input current is sinusoidal, and can run in four-quadrant, the puissance density of the system is sizably voluminous.
MITSUBISHI inverter FR-A740 series.
Voltage level: 3 phase 400V.

The frequency converter is the application of frequency conversion technology and microelectronics technology, by transmuting the motor operating power frequency mode to control the AC motor power control equipment.
The converter is composed of a rectifier (AC), filter, inverter (DC), braking unit, driving unit, micro processing unit of the detection unit FR-PU07.

Inverter by the internal IGBT to adjust the output power supply voltage and frequency, According to the authentic desiderata of the motor to provide the required power supply voltage, and then achieve the purport of energy savings, speed control, in additament to the, The inverter has a plethora of auspice functions, such as over-current, over-voltage, overload bulwark, and so on FR-PU07.

Supporting inverter models: