This document is a technical manual for Yaskawa AC Drive V1000 variable frequency drives. It provides installation and operation instructions for drive models in the 200V and 400V classes with power ratings from 0.1 to 18.5kW. The manual contains sections on receiving, mechanical installation, electrical installation, start-up, programming, troubleshooting, maintenance, specifications and other reference information. Safety notices and precautions for proper use are provided throughout.