new SJ300 Inverter are among the most powerful of their class.
Hitachi's unique "Advanced Sensorless Vector Control"
(ASLV; patent pending) offers 200% starting torque and full
torque at zero Hz – without feedback. The integrated
Hitachi 32-bit SuperH RISC processor delivers the dynamic
response needed for high-end applications.
To compensate possible temperature fluctuations
within the motor, which might adversely affect smooth control
of the motor, an online/offline motor-autotuning function
is included. A newly developed internal control process
leads to drastically reduce any rotational fluctuation at
low speed, which enhances process stability and precision.