PLC Stepper Motor Control: Dziwani Zofunika Zomveka
PLC Stepper Motor Control: Dziwani Zofunika Zomveka
Mawu Oyamba
PLCs (Programmable Logic Controllers) ndi makompyuta owongolera mafakitale okhala ndi mawonekedwe osinthika, kusinthasintha, kuwongolera mwachangu, komanso kusanja bwino deta. Amachita bwino pakuwongolera ma stepper motors pogwiritsa ntchito zotulutsa zothamanga kwambiri kapena ntchito zowongolera zoyenda.
Pazida zokhala ndi mtunda wokhazikika komanso kuthamanga, kuwongolera ma stepper motors kudzera pa PLC ndi driver driver ndiye yankho labwino.
Makhalidwe a Stepper Motors
Proportional Angular Displacement:Kusuntha kwamakona kwa mota ya stepper kumayenderana kwambiri ndi kuchuluka kwa kugunda kwamphamvu. Pambuyo pozungulira konse, palibe cholakwika chowonjezera, kuwonetsetsa kuti ntchitoyo ikuyendera bwino.
Zosavuta komanso Zodalirika Zotsegula - Loop Control:Dongosolo lotseguka - lopumula digito lopangidwa ndi stepper motor ndi dera loyendetsa ndi losavuta, lotsika mtengo - lothandiza, komanso lodalirika. Itha kuphatikizidwanso ndi njira yosinthira ma angle kuti ipange mawonekedwe apamwamba - otsekedwa - loop system.
Yankho la Fast Dynamic:Ma Stepper motors amatha kuyambitsa mwachangu, kuyimitsa, kubwerera kumbuyo, ndikusintha liwiro.
Wide Speed Range:Liwiro limatha kusinthidwa bwino pamitundu yotakata, yokhala ndi torque yayikulu ngakhale pa liwiro lotsika.
Chofunikira cha Mphamvu ya Pulse: Ma Stepper motors amafunikira mphamvu zamagetsi - m'lifupi - zosinthidwa ndipo sangathe kugwira ntchito mwachindunji pamagetsi a AC kapena DC.
Maulendo apamwamba kwambiri omwe injini imatha kuyankha popanda kutaya masitepe ndi "maulendo oyambira." "Kuyimitsa pafupipafupi" ndikokwera kwambiri komwe injini imatha kuyimitsa molondola popanda kupitilira malo omwe chandamale pomwe chizindikiro chowongolera chimadulidwa mwadzidzidzi. Ma frequency oyambira a mota, kuyimitsidwa pafupipafupi, ndi torque yotulutsa ziyenera kufanana ndi nthawi ya inertia. Ndi deta iyi, kuwongolera liwiro la stepper motor ndizotheka.
PLC Kuwongolera kwa Stepper Motors
Mukamagwiritsa ntchito PLC kuwongolera mota ya stepper, werengerani momwe kugunda kwamagetsi kumayendera, kuchuluka kwa ma pulse pafupipafupi, komanso kuchuluka kwa kugunda kwamphamvu pogwiritsa ntchito njira zotsatirazi kusankha PLC yoyenera ndi ma module ogwira ntchito:
Pulse Equivalent = (Stepper Motor Step Angle × Lead) / (360 × Gear Ratio)
Upper Pulse Frequency Limit = (Movement Speed × Stepper Motor Microstep Setting) / Pulse Equivalent
Maximum Pulse Count = (Kuyenda Distance × Stepper Motor Microstep Setting) / Pulse Equivalent
Coordinate System Setup for PLC Control
PLC iyenera kuyamba kukhazikitsa dongosolo lolumikizirana, lomwe lingakhale wachibale kapena mtheradi. M'mawu a DM6629:
Bits 00 - 03 imagwirizana ndi pulse output 0.
Bits 04 - 07 imagwirizana ndi pulse output 1.
Kuyika ma bitswa ku 0 kumasankha njira yolumikizira wachibale, ndikuyiyika ku 1 imasankha njira yolumikizira.
Ntchito Chitsanzo
Mu single - kapena apawiri - axis motion control, magawo monga mayendedwe mtunda, liwiro, ndi mayendedwe amayikidwa pa gulu lowongolera. PLC imawerenga zosinthazi, imawerengera, ndikupanga ma pulse ndi ma signature. Zizindikirozi zimayang'anira dalaivala wa stepper motor, kukwanitsa kuwongolera mtunda, liwiro, ndi komwe akupita. Mayesero othandiza atsimikizira kudalirika, zotheka, ndi mphamvu ya dongosololi.