Sumitomo HF320α AC Micro Drives are similar to the SF320 AC drive series with the addition of a sensorless vector control mode. Sensorless vector control produces higher starting torque and offers a wider constant torque speed range.
Sumitomo HF430 AC Drives incorporate a three-drives-in-one design philosophy. Simple V/F control allows a 10:1 constant torque speed range and is suitable for many applications. Switch to Sensorless Vector (SLV) contol by simply changing a parameter value. SLV control offers a 120:1 constant torque speed range and ±0.5% speed regulation.