MITSUBISHI inverter FR-F740 series.
Voltage level: three phase 400V.
Frequency converter capacity: 560KW.
The main circuit of the inverter can be divided into two categories in general: voltage type is the voltage source of the DC converter for AC inverter,
The filtering of the DC circuit is the capacitance; the current mode is the DC conversion of the current source to the AC inverter,
The DC loop filter is the inductor FR-A740-2 FR-A740-2.2K-CHT2K-CHT PDF.
Why is the frequency of the inverter voltage proportional to the change?
The electromagnetic torque of any motor is the result of the interaction between the current and the magnetic flux, the current is not allowed to exceed the rated value, otherwise it will cause the heating of the motor FR-A740-2.2K-CHT PDF.
Therefore, iff the magnetic flux decreases, the electromagnetic torque will decrease, which leads to the reduction of the load carrying capacity FR-A740-2.2K-CHT Manual. Analog input: 2.
Analog output points: 1 points FR-A740-2.2K-CHT PDF.
Weight: 0.1kg.
FX3 series can be connected to the 2 channel input (voltage: DC0~10V, or current DC4~20mA), as well as 1 channel output (DC0~10V, or current: DC4~20mA) of the adapter.
Each channel can be specified as a current input or voltage input.
Connecting FX3SA, FX3S, FX3GA, FX3G, and FX3U main body, the need to convert the adapter or function expansion board MITSUBISHI INSTRUCTION MANUAL. MITSUBISHI inverter FR-D720 series.
Voltage level: three phase 200V.
Frequency converter capacity: 3.7KW.
Vector control variable frequency speed control is the practice of the asynchronous motor in the three-phase coordinate system of the stator current Ia, Ib, Ic, through the three-phase to two-phase transformation,
The alternating current of Ia1Ib1 is equivalent to a two phase stationary coordinate system, and then is rotated by the rotor field oriented,
Equivalent to the DC current Im1, It1 (Im1 equivalent to DC mootor excitation current in synchronous rotating coordinate system;
It1 equal to the armature current proportional to the torque, and then imitate the DC motor control method, to obtain the DC motor control,
The control of asyynchronous motor is realized through the corresponding inverse coordinate transformation MITSUBISHI INSTRUCTION MANUAL MITSUBISHI INSTRUCTION MANUAL FR-A740-2 FR-A740-2.2K-CHT INSTRUCTION MANUAL. 2K-CHT Manual.