Nanjing iNVOEE Technology Co., Ltd, a professional designer and manufacturer of vector CNC spindle VFD/CNC inverter/variable frequency drive,was founded in 2010.Our main products are VC610,VC660,VC680,VC690 series frequency converter/AC drive.
iNVOEE, as a Chinese professional manufacturing brand of CNC spindle inverter always pays closest attention to quality control.Under the leadership of the industry Senior Doctor, We research and develop VC610-VC690 series VFD for CNC machine tool.We completely own the technical intellectual property rights,top leading level in the world.
VC610 has the following function: 
1. Super low speed & large torque
2. Super fast start /stop
3. Stable rotating speed
4. Simple debugging and maintenance
5. Stepless speed change
VC680/VC690 has additional function based on VC610.
1. Spindle positioning servo
2. Position interpolation
3. Rigid tapping,thread cutting