VEC-VCF kuthamangitsa-kudula servo yapadera imakhala ndi ntchito yowongolera yothamangitsa.Ndi liwiro la kudyetsa la zinthu kukonzedwa, liwiro la kutsogolo kwa tebulo macheka basi ankalamulira.
VEC-VCR rotary mpeni wapadera-purpose servo imaphatikiza mphamvu yachisanu yamagetsi cam algorithm, yomwe imatha kuzindikira ntchito yotsatila kapolo.
VEC-VCJ tension control servo ili ndi mitundu ingapo yowongolera kupsinjika: kuphatikiza liwiro lotsekeka lotsekeka, mawonekedwe otsekeka a loop, mawonekedwe othamanga a loop, ndi njira yotseguka ya loop torque.