I-PLC kanye ne-Stepper Driver Control Principle

2025-08-19

I-PLC kanye ne-Stepper Driver Control Principle

Isimiso Sokulawula

Ama-Stepper motors avame ukusetshenziselwa ukulawula ukuma. Angalawulwa ngenani lama-pulses aphumayo nge-PLC ukuze anqume i-engeli yokuzungeza (kanye nebanga), nge-pulse frequency elawula isivinini semoto. Amasistimu emoto e-Stepper alula, ayabiza - ayasebenza, futhi kulula ukuwalawula, okuwenza afanelekele izinhlelo zokusebenza lapho ukunemba kokulawula kungabalulekile kakhulu. Ezimweni zokulawula ukunemba okuphezulu, amasistimu okulawula ama-servo ngokuvamile ayadingeka.

Uhlelo lwe-stepper luhlanganisa umshayeli we-stepper kanye ne-stepper motor. I-stepper motor iqhutshwa umshayeli we-stepper, osebenza njengomthombo wamandla. Umshayeli ulawulwa yi-pulse yangaphandle kanye nezimpawu zokuqondisa (kulesi sibonelo, ama-pulses asuka ku-Siemens PLC), ngaleyo ndlela elawula i-engeli yokuzungeza yemoto kanye nesivinini.

Izincazelo Eziyinhloko

1. Umshayeli:Umxhumanisi phakathi kwe-PLC ne-stepper motor. Ikhulisa amasiginali we-pulse kusuka ku-PLC futhi iwadlulisele ku-stepper motor, ivumela injini ukuthi isebenze ngokuya ngemingcele ebekwe yi-PLC nomshayeli.

2. I-Engeli Yesinyathelo:I-engeli i-stepper motor ezungeza ngayo nge-pulse ngayinye. I-engeli yesinyathelo evamile ngu-1.8°, ngokuvamile engalungiseki.

Isibonelo: Mangaki ama-pulses i-PLC edinga ukuwakhipha ukuze ijikelezise injini yesitebhisi ene-engeli yesinyathelo engu-1.8° ngokuguqula okukodwa okugcwele (360°) ngaphandle kokunyathela kancane?

Impendulo: 360° / X = 1.8° / 1 ⇒ X = 200 pulses.

3. I-Microsteping:Kuzinhlelo zokusebenza ezingokoqobo, i-engeli enkulu yesinyathelo ingabangela ukudlidliza okubalulekile futhi ikhulise amaphutha okulawula. I-Microstepping ihlukanisa i-engeli yesinyathelo ibe amasegimenti amancane kusetshenziswa amaswishi e-DIP yomshayeli, okuholela ekusebenzeni kahle kwemoto.

Isibonelo: Uma i-engeli yesinyathelo ingu-1.8° futhi i-microstepping isethelwe ku-10, mangaki ama-pulse adingekayo ukuze injini iqedele ukuphenduka okukodwa okugcwele?

Impendulo: 360 ° / X = (1.8° / 10) / 1 ⇒ X = 2000 pulses.

Isifinyezo: I-engeli yesinyathelo enkulu idinga amapulse ambalwa, kuyilapho i-engeli yesinyathelo encane idinga amapulse amaningi.

I-Stepper System Hardware (Usebenzisa i-Phidgets Stepper Motor njengesibonelo)

1. I-Stepper Driver

I-Pulse + Direction Control: Lapho ukushaya kwenhliziyo kukhiqizwa ku-PUL, injini iyazungeza, iqonde inqunywe yi-DIR.

Phambili I-Pulse + Reverse Pulse Control: Ama-Pulse ku-PUL enza injini iphendukisele phambili, kuyilapho ama-pulse ku-DIR ewenza ajikelise emuva. I-PUL ne-DIR akufanele ikhiqize ama-pulse kanyekanye.

2. Stepper Motor

Lapho amajika esigaba A no-B eshintshwa, injini izungeza ibheke kolunye uhlangothi.

I-voltage yesignali ye-stepper motor ingu-5 V, kuyilapho i-Siemens PLC isebenza ku-24 V. A 1.2 K, 1/4 W resistor kumele ixhunywe ochungechungeni lapho ixhumeka kumshayeli, njengoba kuboniswe engxenyeni ebomvu yomdwebo.

I-Siemens PLC (CPU222) isekela izinhlobo ezimbili zokuphuma kwe-high-speed pulse:

I-PTO (I-Pulse Train Output) : Umjikelezo womsebenzi ongu-50%.

I-PWM (I-Pulse - Width Modulation) : Umjikelezo womsebenzi olungisekayo.

Le miphumela ye-high-speed pulse ingasetshenziswa ukulawula umshayeli we-stepper kanye nokunyakaza kanye nesivinini semishini ethile.