Servo mota ndi injini yomwe imawongolera opaleshoni yamakina a servo. Ndi chipangizo chochita masewera olimbitsa thupi. Moto wa servo amatha kuwongolera liwiro, mawonekedwewo kulondola ndi olondola, amatha kusintha chizindikiro champhamvu mu torque ndi liwiro kuti lithetse chinthu. Kuthamanga kwa servo Motor kumayendetsedwa ndi chizindikiro choyikapo, ndipo chingathe kutero Itha kugawidwa mu Motors DC servo ndi maofesi a sefengo. Makhalidwe ake akulu ndi amenewo pomwe magetsi a siginecha ndi zero, palibe kuzungulira chodabwitsa, ndipo kuthamanga kumatsika ndi kuchuluka kwa torque.

Milandu ya servo imagwiritsidwa ntchito kwambiri pamakina osiyanasiyana oyendetsa, omwe amatha kusintha chizindikiro cha magetsi pazithunzi zamakina ndikukoka zigawo zoyendetsedwa kuti akwaniritse cholinga chowongolera.

Pali ma moto a DC ndi AC seerola; Makina a seweroli a servo ndi galimoto yakale ya DC, pakuwongolera kulondola kwake sikokwera, kugwiritsa ntchito General DC mota kuti muchite masewera olimbitsa thupi. Makina a DC Serro Servo ndi mota yotsika kwambiri ya DC, ndipo kukolola kwake kumayang'aniridwa kwambiri ndi zida za gargast ndi mphamvu, koma nthawi zambiri zimakhala zowongolera.

Gulu lagalimoto yozungulira, DC servo mota mu zamakina zitha kukwaniritsa zofunikira za dongosolo la zowongolera, koma chifukwa cha zolakwa zambiri, zoyendetsa galimoto zambiri sizingagwiritsidwe ntchito popanga mpweya woyaka; Pali mikangano pakati pa burashi ndi womuthandizira, zomwe zimapangitsa kuti pakhale malo akuluakulu.

Kapangidwe kake ndi kovuta komanso kukonza ndikovuta.

Makina a AC seerdo makamaka potawirira, ndipo pali njira zitatu zowongolera: matalikidwe, gawo la kuchuluka ndi matalikidwe.

Mwambiri, molora ya servo imafuna liwiro lagalimoto kuti lithe kuwongoleredwa ndi zizindikiro zam'magetsi; Kuthamanga kosinthika kumatha kusintha mosalekeza ndi kusintha kwa magetsi chizindikiro. Kuyankha kwagalimoto kuyenera kukoka, voliyumu iyenera kukhala yaying'ono, mphamvu yowongolera iyenera kukhala yaying'ono. Milandu ya servo imagwiritsidwa ntchito makamaka m'mayendedwe osiyanasiyana oyendetsera mayendedwe oyendetsedwa, makamaka dongosolo la servo.