Frequncy Inverter

AC70 is sensorless vector control AC motor drive with optimized design and stable performance. It's specially designed with optimized V/F control and open loop vector control(OLV) without PG card to achiece sophisticated motor control. Veichi AC70 variable frequency drive is designed on the basis of AC60 general purpose drive platform, featuring enhanced performace, high speed accuracy control, quick torque respond, high starting torque and so forth. Because of its excellent motor control performance, AC70 AC motor drives have been widely used in industrial area.

                                                                          There are two control modes for selection

1: OLV sensorless vector control without PG

It's suitable for all applications that need high accuracy speed control , high starting torque and quick torque respond and especially suitable for plastic extrusion, punch, air compressor which need high starting torque and fast respond.



2:V/F control

Used for all applications that need no high respond and high accuracy speed control requirement, 1 inverter drive for multi-motors, and parameter of motor is not easy to obtain, and motor auto tuning can’t be implemented.      


please see below link of website:   http://www.veichi.org/variable-frequency-drives.html