How to use Fuji Electric inverter

Create Date: 2024-8-30 12:03:23|Source: Fuji Electric/Fujielectric

Fuji Electric inverter has many precautions during use. Here are some methods to learn.

　　The ambient temperature has a great influence on the service life of the inverter. For every 10°C, the service life of the drive is halved, so the ambient temperature and heat dissipation of the drive must be addressed. Fujifilm inverter.

Correct wiring and parameterization. Before installing the drive, you must read the manual to master its usage, precautions, and wiring. Once installed, set the parameters correctly according to the usage. Fujifilm inverter.

Pay attention to the relationship between speed and head. The selection of the motor and its optimal working section is an important issue. If the inverter is lower than 5HZ for a long time, the motor heating becomes a prominent problem. Fujifilm inverter.

V/f control is constant torque regulation. Vector control makes the output torque of the motor proportional to the square of the voltage, which increases the output torque of the motor at low speeds. Fujifilm inverter

If the system is operating in a power/conversion switching mode, the interlock between the power frequency output and the conversion output should be reliable. And start and stop the pump, power frequency/frequency conversion switch to stop the inverter, and then operate the contactor. Since it takes a certain amount of time for contact adhesion and high-capacity contact arcing to extinguish, the above switching sequence and time should be considered. Fujifilm inverter

Problems with faulty external control signals. There are usually several scenarios: the signal pattern is wrong, the terminal is wired incorrectly, the parameter settings are incorrect, or there is a problem with the external signal itself. Fujifilm inverter.

The difference between overcurrent tripping and overload tripping. The overcurrent is mainly used to protect the inverter, and the overload is mainly used to protect the motor. Because the capacity of the inverter sometimes needs to be increased by one or two gears compared to the capacity of the motor, the inverter does not necessarily overcurrent when the motor is overloaded. Overload protection is carried out by an electronic thermal protection function inside the frequency converter. When presetting electronic thermal protection, the current ratio should be accurately preset, that is, the percentage of the rated current of the motor to the rated current of the inverter.

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