FR-V520-45K - Frequency inverter - MITSUBISHI

Adaptive flux observer

The motor flux is continuously updated using the motor current and the inverter output voltage. The motor flux is calculated at high precision, improving torque accuracy. Reduces torque fluctuation caused by changes in the motor temperature by using online tuning with the adaptive flux observer, high torque accuracy is realized regardless of changes in the motor temperature (Vector control with encoder).

Simple gain tuning

The motor's load inertia is estimated online, and the speed control gain and position loop gain are adjusted automatically. Speed control gain and position loop gain adjustments are no longer necessary! The motor's load inertia estimated automatically online from the output torque during acceleration/deceleration provides the optimum speed control gain and position loop gain. The software can set the optimum response automatically with the 15-steps responsiveness settings.

Ideal model adaptive speed control 

High responsiveness with respect to the target speed value is realized by providing an ideal model adaptive speed control section in the control system. Vibrations are suppressed by reducing the error between the ideal model speed and actual speed with a disturbance suppression section. Improve responsiveness of speed command by using in combination with simple gain tuning! (Inverter internal speed response is 800rad/s, speed control range is 1:1500) The response can be set independently for the ideal model's speed control section and the disturbance control section.

Compatible with a wide range of motors

Encoder expandability

The Encoder power supply voltage can be set to 5.5V, 12V or 24V. (Differential line driver, complimentary) The dedicated motor (SF-V5R) encoder has a 2048P/R resolution and is compatible with the 12V power supply voltage.