Drive unit.
MITSUBISHI universal AC servo amplifier MELSERVO-J4 series.
Rated output: 45kw.
Interface: SSCNET III /H.
Power supply: three phase AC400V.
Support position control, speed control, torque control.
Position control to follow the position instructions.
When the control is inserted, the position control is performed Mitsubishi FX3G Input Wiring Caution Manual Mitsubishi FX3G Input Wiring Caution Mitsubishi FX3G Input Wiring Caution
Speed control follows the speed command to control the speed within a certain range.
Torque control to follow the torque command to control the stable torque.
Function of switching amplitude. The increase in the process of switching and stopping,
And in the operation of the use of the switching signal, switching growth. Length: 0.3 meters.
Purpose: MR-BT6VCASE. Purpose: MR-JE-B Mitsubishi FX3G Input Wiring Caution Manual Mitsubishi FX3G Input Wiring Caution . Power: 280kw.
Voltage: 200V.
Sine wave filter.
The voltage and current of the motor can be adjusted to a sine wave.
The sine wave filter is installed to the output terminal of the inverter.
Applicable to FR-A820-03800 (75K) above and FR-A840-02160 (75K) and above frequency converter.
Sine wave filter is equivalent to the operational characteristics of the sine wave power driver, can provide the following benefits Mitsubishi FX3G Input Wiring Caution Manual Mitsubishi FX3G Input Wiring Caution .
Low noise.
No surge current.
Reduce motor loss (standard motor). Drive: MR-H_ACN series built-in positioning function.
Rated output: 5.0KW.
In servo drive speed closed loop,
Rotor speed measurement accuracy is very important to improve the dynamic and static characteristics of the speed control loop.
In order to seek the balance between measurement precision and system cost, incremental photoelectric encoder is generally used as the speed measuring sensor,
The corresponding method is M/T velocity measurement.
Although the M/T measurement method has a certain measurement accuracy and a wide range of measurement,
But this method has its inherent defects,
Mainly includes: the measurement period must be detected at least one complete encoder pulse, limiting the minimum detectable speed.
2 control system for speeed control of the timer switch is difficult to maintain synchronization,
Can not guarantee the accuracy of measurement in the situation where the speed change is largger Mitsubishi FX3G Input Wiring Caution Manual Mitsubishi FX3G Input Wiring Caution Mitsubishi FX3G Input Wiring Caution Manual Mitsubishi FX3G Input Wiring Caution .
Therefore, it is difficult to improve the speed tracking and control performance of servo drive by using the traditional speed loop design method.