The 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.
