I-PLC kunye ne-Stepper Driver Control Principle

2025-08-19

I-PLC kunye ne-Stepper Driver Control Principle

Umgaqo wokulawula

Iinjini zeStepper ziqhele ukusetyenziselwa ukulawula indawo. Zinokulawulwa ngenani lee-pulses eziphuma kwi-PLC ukumisela i-angle yokujikeleza (kwaye ke umgama), kunye ne-pulse frequency elawula isantya semoto. Iinkqubo zeemoto ze-Stepper zilula, zinexabiso-zisebenzayo, kwaye kulula ukuzilawula, zizenza zilungele usetyenziso apho ukuchaneka kolawulo kungabaluleke kakhulu. Kwiimeko zolawulo oluchanekileyo oluphezulu, iisistim zolawulo lwe-servo ziyafuneka ngokuqhelekileyo.

Inkqubo yokunyathela ibandakanya umqhubi we-stepper kunye ne-motor stepper. I-motor stepper iqhutywa ngumqhubi we-stepper, osebenza njengomthombo wamandla. Umqhubi ulawulwa yi-pulse yangaphandle kunye neempawu zolwalathiso (kulo mzekelo, ii-pulses ezivela kwi-Siemens PLC), ngaloo ndlela ulawula i-angle yokujikeleza kwemoto kunye nesantya.

Iingcaciso eziphambili

1. Umqhubi:Umlamli phakathi kwe-PLC kunye ne-stepper motor. Ikhulisa imiqondiso ye-pulse evela kwi-PLC kwaye idlulisele kwi-motor stepper, ivumela i-motor ukuba isebenze ngokweeparamitha ezibekwe yi-PLC kunye nomqhubi.

2. I-engile yenyathelo:I-engile apho i-stepper motor ijikeleza nge-pulse nganye. I-engile yenyathelo eqhelekileyo yi-1.8°, edla ngokungalungelelanisi.

Umzekelo: Zingaphi iipulse ekufuneka i-PLC ikhuphe imveliso ukuze ijikelezise i-stepper motor enenqanaba le-1.8° nge-revolution enye epheleleyo (360°) ngaphandle kwe-microstepping?

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

3. Ukunyathela kancinci:Kwizicelo ezisebenzayo, i-angle yenyathelo elikhulu inokubangela ukungcangcazela okubalulekileyo kunye nokwandisa iimpazamo zolawulo. I-Microstepping yahlula i-angle yenyathelo ibe ngamacandelo amancinci usebenzisa iiswitshi ze-DIP zomqhubi, okukhokelela ekusebenzeni kakuhle kwemoto.

Umzekelo: Ukuba i-engile yenyathelo yi-1.8° kwaye i-microstepping isetelwe ku-10, zingaphi iipulse ezifunekayo ukuze imotor igqibezele irevolution enye epheleleyo?

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

Isishwankathelo: I-angle yenyathelo elikhulu ifuna iipulse ezimbalwa, ngelixa i-angle yenyathelo elincinci ifuna iipulses ezininzi.

I-Stepper System Hardware (Ukusebenzisa i-Phidgets Stepper Motor njengomzekelo)

1. Umqhubi weStepper

I-Pulse + Direction Control: Xa i-pulse yenziwe kwi-PUL, i-motor iyajikeleza, kunye nolwalathiso olunqunywe yi-DIR.

Phambili iPulse + Reverse Pulse Control: IiPulse kwi-PUL zenza i-motor ijikelezise phambili, ngelixa ii-pulse kwi-DIR ziyenza ijikeleze ngasemva. I-PUL kunye ne-DIR akufuneki zivelise ii-pulses ngaxeshanye.

2. Stepper Motor

Xa i-A kunye ne-B yesigaba somoya sitshintshwa, i-motor ijikeleza kwelinye icala.

I-voltage ye-signal ye-motor stepper yi-5 V, ngelixa i-Siemens PLC isebenza kwi-24 V. A 1.2 K, i-1/4 W i-resistor kufuneka idibaniswe kwichungechunge xa idibanisa kumqhubi, njengoko kuboniswe kwinxalenye ebomvu yomzobo.

I-Siemens PLC (CPU222) ixhasa iindidi ezimbini zeziphumo zokubetha kwesantya esiphezulu:

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

I-PWM (I-Pulse-Width Modulation) : Umjikelo womsebenzi ohlengahlengiswayo.

Ezi ziphumo ze-high-speed pulse zingasetyenziselwa ukulawula umqhubi we-stepper kunye nokuhamba kunye nesantya sezixhobo ezithile.