Contest Club
QRV since 1993.


Easy Rotor Control version 4 working well with Win-test.
Win-test control the ERC. ERC controls the VFD to start, stop, rotate CW and CCW the motor.
Attached to the motor is a pot meter for feedback the direction and a end switch to stop the motor immateriality. Just in case there is more than a 360 degree turn.

A sort video and photo's of the complete project are online,


This unit was found on Ebay for cheap. Just 150 euro's, but a lot of work also.


A Hitachi Variabel Frequentcy Driver is used tot ramp-up and ramp-down the motor. and set the speed of the motor.

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