MITSUBISHI inverter FR-E720 series.
Voltage level: 3 phase 200V.
Frequency converter capacity: 3.7KW.
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 FX3U-64MT/DSS datasheet PDF catalog FX3U-64MT/DSS PDF datasheet FX3U-64MT/DSS
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 FX3U-64MT/DSS datasheet PDF catalog FX3U-64MT/DSS PDF datasheet.
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. Power: 0.4kw.
Purpose: to suppress the power harmonics.
Improve the power factor, reduce the input side of the high harmonic current.
Make sure that this option is installed in the FR-A820-03800 (75K) and FR-A840-02160 (75K) and above capacity and above capacity FX3U-64MT/DSS datasheet PDF catalog FX3U-64MT/DSS PDF datasheet.
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.
(when the inverter capacity is greater than the motor capacity, is still based on the motor capacity to choose.) 8 point analog potentiometer function expansion board."Power: 55kw.
Voltage: 200V.
Brake resistor, a kind of ripple resistance, is mainly used in the mechanical system of the inverter to control the speed of the motor,
Help the motor to be converted into heat energy due to the regenerative power of the motor.
Braking unit principle: the brake unit is composed of a high power transistor GTR and its driving circuit FX3U-64MT/DSS datasheet PDF catalog FX3U-64MT/DSS PDF datasheet.
Its function is to link the discharge current braking resistor capacitor voltage or not in the range of the time connsumed and the DC part "overpressure",
Need to add external braking components, in order to speed up the speed of the consumption of renewable energy FX3U-64MT/DSS datasheet PDF catalog FX3U-64MT/DSS PDF datasheet. "