MITSUBISHI inverter FR-D720 series.
Voltage level: three phase 200V.
Frequency converter capacity: 7.5KW.
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 motor 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 asynchronous motor is realized through the corresponding inverse coordinate transformation.
Purpose: to operate, monitor, and change the parameters through the network.
Applicable frequency converter: FR-A700, FR-F700, FR-E700. MITSUBISHI inverter series: FR-A800.
Voltage level: three phase 400V.
Power: 400kw.
SLD converter rated current: 962A.
Structure and function: the rectification part is off type MITSUBISHI FR-D720-7.5K.
Type: CA.
Substrate coating: have.
To maximize the performance of the motor
FR-D720-7.5K
Advanced auto tuning function.
The newly developed PM motor auto tuning feature can be used to operate other manufacturers of PM motors (Yong Ci synchronous motors) in the sensorless state.
Not only can drive MITSUBISHI induction motor and PM motor, but also can drive other manufacturers of induction motor and PM motor MITSUBISHI FR-D720-7.5K.
This means that you can reduce the cost of inventory and supplies.
If the PM motor is produced by a IPM motor or other company using MM-CF, the starting torque is limited to 50%,
Even after tuning is not simple to use and positioning control of zero speed torque) induction motor and permanent magnet motor can be combined freely. MITSUBISHI inverter series: FR-F842.
Voltage level: three phase 400V MITSUBISHI FR-D720-7.5K.
Power: 450kw.
SLD converter rated current: 962A.
Structure and function: the rectification part is off type.
Type: CA.
Substrate coating: have.
Energy saving by high efficiency motor.
Reduce standby power consumption.
DC24V external power supply, the input MC signal can be stopped after the motor for the OFF, in the motor drive for the ON MITSUBISHI 3 phase 200V converter.
Standby power management can be carried out by means of frequency converter to realize the power consumption reduction of standby time MITSUBISHI 3 phase 200V converter.
According to the temperature of the inverter cooling fan, the operation of the inverter can be controlled.
According to the operating conditions of the inverter cooling fan output the corresponding signal,
Therefore, the inverter and other built-in fan and inverter cooling fan synchronous operation MITSUBISHI 3 phase 200V converter.
Can reduce the power consumption in the stop. MITSUBISHI inverter series: FR-F840.
Voltage level: three phase 400V.
Power: 185kw.
SLD converter rated current: 432A.
Structure and function: Standard model.
Type: CA.
Substrate coating: have.
The motor efficiency is not changed in the previous optimal excitation control,
At the same time, the newly developed advanced optimal excitation control can obtain larger torque at startup.
No need to adjust the parameters (plus deceleration time or torque, etc.), in a short time to speed up to a certain speed,
Can be carried out to maximize the efficiency of energy-saving drive motor.
The automatic tuning function of the loop constant of the motor is not consistent with the constant of the motor, the motor of other manufacturers, and the length of wiring is too long,
Optimum operating characteristic drive mmotor FR-D720-7.5K.
In the state of the sensor can not only drive the high efficiency and energy saving motor and PM motor (MM-EFS), but also can drive other companies induction motor and PM motor (permanent magnet synchronous motor).
Othher manufacturers of induction motors, can also be automatically tuned to achieve the best excitation control, thus expanding the use of energy saving MITSUBISHI FR-D720-7.5K.