Iimpawu zeeStepper Motors

01

Kwanakwimoto efanayo ye-stepper, iimpawu ze-moment-frequency zahluka kakhulu xa kusetyenziswa iindlela ezahlukeneyo zokuqhuba.

2

Xa i-stepping motor isebenza, imiqondiso ye-pulse yongezwa kwi-windings yesigaba ngasinye ngokulandelelanayo (ngendlela yokuba i-windings inikwe amandla kwaye incitshiswe amandla ngumsasazi weringi ngaphakathi komqhubi).

3

Imoto yokunyathela yahlukile kwezinye iimoto, i-voltage yayo elinganiselweyo kunye ne-current elinganiselweyo zizinto ezibhekisa kuphela; kwaye ngenxa yokuba i-stepping motor iqhutywa zii-pulses, i-voltage yombane yeyona voltage yayo iphezulu, hayi i-voltage eqhelekileyo, ngoko ke i-stepping motor inokusebenza ngaphaya koluhlu lwayo olulinganiselweyo. Kodwa ukhetho akufuneki luphambuke kakhulu kwixabiso elilinganiselweyo.

4

I-Stepping motor ayinampazamo eqokelelweyo: ngokubanzi ukuchaneka kwe-stepping motor yi-3 ukuya kwi-5 ekhulwini ye-engile yenyathelo yokwenyani, kwaye ayiqokeleli.

5

Ubushushu obuphezulu obuvumelekileyo bokubonakala kwemoto yokunyathela: ubushushu obuphezulu bemoto yokunyathela kuqala buya kususa umbane kwizinto ezitsala umbane zemoto, nto leyo eya kukhokelela ekwehleni kwe-torque okanye ngaphandle kwenyathelo, ngoko ke ubushushu obuphezulu obuvumelekileyo bokubonakala kwemoto bufanele buxhomekeke kwindawo yokutsalwa kombane kwezinto ezitsala umbane zemoto ezahlukeneyo; ngokubanzi, indawo yokutsalwa kombane kwizinto ezitsala umbane zemoto ingaphezulu kwe-130 degrees Celsius, kwaye ezinye zazo zifikelela nangaphezu kwe-200 degrees Celsius, ngoko ke, kuyinto eqhelekileyo ukuba imoto yokunyathela ibe nobushushu obuyi-80-90 degrees Celsius. Ke ngoko, ubushushu bomphandle wemoto yokunyathela yi-80-90 degrees Celsius buqhelekile ngokupheleleyo.

I-torque yemoto iya kuncipha ngokonyuka kwesantya sokujikeleza: xa i-stepping motor ijikeleza, i-inductance yokujika kwesigaba ngasinye semoto iya kwenza i-reverse electromotive force; okukhona i-frequency iphezulu, kokukhona i-reverse electromotive force inkulu. Phantsi kwesenzo sayo, i-phase current yemoto iyancipha ngokonyuka kwe-frequency (okanye isantya), nto leyo ebangela ukwehla kwe-torque.

7

Imoto yokunyathela ingasebenza ngesantya esiphantsi, kodwa ukuba iphezulu kune-frequency ethile ayinakuqala, kwaye ihamba nesandi somlozi. Imoto yokunyathela ine-parameter yobuchwephesha: i-frequency yokuqala engenamthwalo, oko kukuthi, i-motor yokunyathela kwimeko engenamthwalo ingaqalisa i-frequency ye-pulse, ukuba i-frequency ye-pulse iphezulu kunexabiso, i-motor ayikwazi ukuqala ngesiqhelo, kunokubakho ukulahleka kwenyathelo okanye ukuvimba. Kwimeko yomthwalo, i-frequency yokuqala kufuneka ibe phantsi. Ukuba i-motor iza kufikelela kwisantya esiphezulu, i-frequency ye-pulse kufuneka ikhawuleziswe, oko kukuthi i-frequency yokuqala kufuneka ibe phantsi, ize ikhawuleziswe ukuya kwi-frequency ephezulu oyifunayo (isantya se-motor ukusuka ezantsi ukuya phezulu).

8

I-voltage yonikezelo lwabaqhubi beemoto ze-hybrid stepper ngokubanzi ibanzi, kwaye i-voltage yonikezelo idla ngokukhethwa ngokwesantya sokusebenza kwemoto kunye neemfuno zokuphendula. Ukuba isantya sokusebenza semoto siphezulu okanye imfuneko yokuphendula ikhawuleza, ixabiso le-voltage nalo liphezulu, kodwa lumka ukuba i-ripple ye-voltage yonikezelo mayingadluli kwi-voltage ephezulu yokufaka yomqhubi, kungenjalo umqhubi unokonakala.

9

Umbane wangoku umiselwa ngokwe-output phase current I yomqhubi. Ukuba kusetyenziswa umbane othe ngqo, umbane wangoku ungathathwa njenge-1.1 ukuya kwi-1.3 amaxesha e-I. Ukuba kusetyenziswa umbane otshintshayo, umbane wangoku ungathathwa njenge-1.5 ukuya kwi-2.0 amaxesha e-I.

10

Xa isignali engaxhunyiwe kwi-intanethi i-FREE iphantsi, amandla ombane avela kumqhubi ukuya kwi-motor ayanqunyulwa kwaye i-motor rotor ikwimeko ekhululekileyo (imeko engaxhunyiwe kwi-intanethi). Kwezinye izixhobo zokuzenzekela, ukuba kufuneka ujikelezo oluthe ngqo lwe-motor shaft (imo yesandla) ngaphandle kokuba i-drive inikwe amandla, isignali ye-FREE ingamiselwa phantsi ukuze ithathe i-motor ingasebenzi kwi-intanethi ukuze isebenze ngesandla okanye ilungiswe. Emva kokuba ukusebenza ngesandla kugqityiwe, isignali ye-FREE ibekwa phezulu kwakhona ukuze kuqhubeke nolawulo oluzenzekelayo.

11

Indlela elula yokulungisa indlela yokujikeleza kwemoto ye-stepper enamanqanaba amabini emva kokuba inikwe amandla kukutshintsha i-A+ kunye ne-A- (okanye i-B+ kunye ne-B-) yentambo yemoto kunye nomqhubi.