Specification :

Inverter = motor speed control device electronically. Designed to replace traditional motor speed control system using the gear box, pulley, etc. electromagnetic coupling.

Advantages using Inverter:
Greater torque.
Precision speed control and torque better.
Movement dynamics control for various applications.
Can be integrated with the PLC, so that the function increases.
Conserve energy.
Adding monitoring capabilities.
Brosure
http: / / www.cdpbdg.co.id/ Brosur% 20Inverter.pdf