... ) for AC motors as speed controller and energy saver 380Vac 3 PHASE vector control commodity: VFD AC Drives = frequency inverter = AC ... printing, textile, cement and steel factories where severe environments exist. 3. Multipul control terminal, 7 DI, 4 DO, 4 AI, ... users can benefits from:1. Energy saving 2. Soft start 3. Machines operating protection 4. Automation control 5. Enhanse the production ...