Delta Electronics AC Motor Drives: 
VFD-B Drives used for Knee Mills and General Purpose 3-Phase Variable Speed AC Motor applications:
VFD-V Drives used on CNC Vector Motor Models like CNCM4
Download Catalog (2.5Mb)
Download Manual (4.4Mb)
http://www.delta.com.tw/product/em/drive/ac_motor/ac_motor_product.asp?pid=1&cid=1&itid=2