Some vector VFDs offer response comparable to dc servo drives.įrom the cost aspect, the vector VFDs generally cost more than general purpose drives, but this difference is shrinking as vector VFDs increase in popularity.

However, using a speed feedback improves response, speed regulation, and low-speed operation.

Some vector VFDs require a speed feedback device - usually an encoder or resolver - others do not. In general, a vector control - of which there are several versions - offers faster response and more precise speed regulation than does a general purpose VFD. It requires understanding the requirements of the application, then selecting the VFD to best meet the needs. Single phase 220V 50Hz/60Hz input, three phase outputįor larger VFDs, contact us to get a RFQ and detailed specification per your specified requirements.Ĭhoose a vector control VFD OR a general purpose VFD? Generally, it's cheaper than the prices in the table list, as we are the manufacturer in China and make direct sale to you. Note: the prices in the table list are for reference only, to buy a VFD, please contact us to get a sale price for each unit.

Generally, cost per hp is decreased along with the VFD capacity increased. Variable frequency drive, also named frequency inverter, variable speed drive etc, is a common device for controlling AC motor in variable speed running to save electricity bills, the pricing is in big differences among different manufacturers & suppliers, you may compare them in quality & cost before buying a VFD.

Variable frequency drive 10 hp