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Ịwụnye ihe mgbochi mgbaàmà na kabinet njikwa PLC
Akụkọ

Ịwụnye ihe mgbochi mgbaàmà na kabinet njikwa PLC

2024-08-20

N'ihe gbasara akpaaka ụlọ ọrụ mmepụta ihe, kabinet njikwa PLC (Programmable Logic Controller) na-arụ ọrụ dị oke mkpa, na-ahụ maka ịnata akara sitere na sensọ na ihe na-eme ihe dị iche iche, na inweta njikwa ziri ezi nke usoro mmepụta site na ọrụ mgbagha dị n'ime. Agbanyeghị, na ngwa bara uru, kabinet njikwa PLC na-echekarị gburugburu elektrọnik dị iche iche na nsogbu nnyonye anya mgbaàmà, nke nwere ike ibute nsogbu sistemụ njikwa, ọdịda ugboro ugboro, na ọbụna iyi egwu na nchekwa akụrụngwa na ndị ọrụ. Ya mere, na-agbakwụnye mgbaama dịpụrụ adịpụihe eji arụ ọrụ na kabinet njikwa PLC abụrụla ihe a na-ahụkarị.

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Isi ọrụ nke ihe ndị na-egbochi ihe mgbaàmà gụnyere igbochi nnyefe nke nnyonye anya elektrọnik, ibelata ihe ndị na-eme ka sistemụ daa, na inye nkewa ma ọ bụrụ na ngwaọrụ daa n'ebe ahụ, igbochi mgbasa nke nsogbu na sistemụ njikwa dum. Site n'ịgbanwe ma gbanwee ihe mgbaàmà ndị PLC natara site na ngwaọrụ semiconductor, wee kewapụ ma gbanwee ha site na iji ngwaọrụ ihe mmetụta anya ma ọ bụ magnet, na n'ikpeazụ iwepụ ma gbanwee ha na ihe mgbaàmà mbụ ma ọ bụ ihe mgbaàmà dị iche iche, usoro a na-eme ka ihe mgbaàmà ahụ guzosie ike na izi ezi, ebe ọ na-egbochikwa mmebi na PLC ma belata mmetụta nke ihe mgbaàmà dị na ebe ahụ na PLC, karịsịa ihe mgbaàmà ndị na-adịghị mma. Na mgbakwunye, ihe ndị na-egbochi ihe mgbaàmà nwekwara ike ime mgbanwe ihe mgbaàmà, dị ka ịtụgharị ihe mgbaàmà site na njikọ PT10 gaa na ihe mgbaàmà 4-20mA na itinye ha na sistemụ PLC, izere esemokwu dị n'etiti ọkụ eletrik na isi iyi ike na idozi nsogbu nke ihe ndị na-egbochi ibe ha n'etiti loops na akụrụngwa.

N'ọrụ ụfọdụ, dịka n'usoro mmepụta nke ụlọ ọrụ ígwè, a na-enweta nha na njikwa site na PLC, ngwa ọrụ akpaaka n'ebe ahụ, na ndị na-eme ihe n'ebe ahụ. A na-etinye PLC n'ime kabinet njikwa dị ọtụtụ narị mita site na ebe ahụ (na-arụ ọrụ na okpomọkụ ụlọ), yana ngwa ọrụ akpaaka ma ọ bụ thermocouples site na akara mmepụta saịtị site na waya banye na kabinet njikwa n'ime ụlọ njikwa. N'oge a, a ga-ekewapụ akara na-abanye na PLC ma nwee ike ịchọ ka agbanwee ya, dị ka ikewapụ 4-20mA ma gbanwee ya ka ọ bụrụ 0-5V tupu ịbanye na PLC. A na-akpọ ngwa ndị na-emecha ikewapụ na mgbanwe nke akara thermocouple "ihe na-ekewapụ akara thermocouple" ma ọ bụ "ihe na-ebuga okpomọkụ thermocouple". Ọrụ ya bụ isi gụnyere ikewapụ akara ntinye na akara mmepụta, yana ịtụgharị akara ọkwa mV ntinye site na thermocouple ka ọ bụrụ akara ụlọ ọrụ ọkọlọtọ (4-20mA, 0-5V, 0-10V).

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Na nchịkọta, itinye ihe ndị na-egbochi mgbaàmà dị oke mkpa maka imeziwanye ntụkwasị obi nke sistemụ akpaaka ụlọ ọrụ mmepụta ihe, ibelata ọnụego ọdịda, ichebe akụrụngwa PLC, na imeziwanye mma nke akara ngosi. Ọ bụ otu n'ime ihe dị mkpa iji hụ na sistemụ njikwa na-arụ ọrụ kwụsiri ike ma dị irè.