- Mabhuroko ekupedzisira ane dheki nhatu wedzera matanho matatu akazvimiririra ekubata pane imwe DIN rail footprint, zvichideredza upamhi hwepaneru kusvika ku60% zvichienzaniswa nemabhuroko eterminal echikamu chimwe chete.
- Waya dzekugovera dze PLC dzakanyanya kusimba dzinodamabhazi anobatanidza mabhaziiyo inoparadzira masaini pamatanho akasiyana-siyana emagetsi pasina kuwedzera kuoma kwewaya.
- Voltage yakayerwa yenzvimbo dzeindasitiri dzePLC inofanira kusanganaIEC 60947-7-1pa630V AC zvishoma, nekugumiswa kwekudzivirira kunodzivirira kupinza kwemhepo kunobvumira waya dzemumunda dzisina maturusi.
- MaPLC anoparadzira ma network e24V DC signal pamatanho anopfuura 32 eI/O anogona kuderedza zvikanganiso zvewaya neanenge 70% kana achishandisa ma terminal blocks ane ma cross-connected multi-deck terminals uchienzaniswa newaya imwe neimwe ye point-to-point.
- Kusarudzwa kwezvinhu—polyamide 6.6 housing (UL94 V-0) zvichienzaniswa nePPE/PPO—inoona mashandiro e terminal block pasi pemamiriro emakabati ePLC anodziya zvakanyanya.
Dambudziko reKuwanda kweWiring muMakambani Emazuva Ano Ekutonga Maindasitiri
Kana wakambopedza nguva uri mukati mekabhineti yepakati pehurongwa hwehurongwa hwekugadzirisa magetsi (PLC) yakavakwa makore anopfuura mashanu apfuura, unoziva dambudziko rehuwandu hwemagetsi. Kabhineti yakazara—yakazara—nemagetsi emagetsi ega ega, mazhinji acho aine masaini akafanana e24V DC kubva kumagetsi akafanana. Kadhi rega rega rekuisa magetsi rinowana waya yaro yakatsaurirwa kubva kumutsara weblock terminal. Nzira yega yega yekuburitsa magetsi ine nzira yekudzoka inoratidza kuoma kwekuisa magetsi. Mugumisiro wacho iwaya rekubatanidza magetsi rinodhura kugadzira, rakaoma zvikuru kugadzirisa, uye rinotoda kugadziriswa pasina kuunza zvikanganiso zvitsva.
Ini pachangu ndakaona panel ye400-amp motor control center apo waya yekutanga yakatora mainjiniya vaviri maawa angangoita masere kuti vaongorore kana paine kutadza kweimwe input channel iyo yakazopedzisira yave screw isina kusimba pa terminal block. Odyssey iyoyo yekuongorora yaizotora maminetsi asingasviki makumi matatu mu PLC distribution panel yakagadzirwa zvakanaka ichishandisa high-density triple-deck terminal blocks ine cross-connection architecture.
Iri harisi dambudziko rekufungidzira. Munzvimbo dzemazuva ano dzemaindasitiri, huwandu hwePLC I/O channels hwakawedzera zvakanyanya sezvo masisitimu ekudzora ave akaomarara. S7-1500 PLC kubva kuSiemens inogona kugadzirisa kusvika ku8192 discrete I/O points pakati pemaraki akawanda, uye imwe neimwe yepoinzi idzodzo inoda waya yekumisa paPLC I/O module uye field termination. Kana ukawanza izvozvo kunyangwe pakuisa kudiki—ngatitii, 256 I/O points—dambudziko rekugadzirisa waya rinova chinhu chakakosha kune muvaki wepaneru uye nyanzvi yekugadzirisa zvakafanana.
Ningbo J-Guang Zvigadzirwa Zvemagetsi anga achigadzira uye achigadzira mabhuroko ekupedzisira ane huwandu hwakawanda zvakananga yekushandiswa kwekugovera kwePLC kubvira muna 2008, uye ndakapedza nguva yakawanda ndichishanda zvakananga nevanobatanidza masisitimu ekudzora uye vanovaka mapaneru kumativi ese.Europe, North America, uye Southeast Asia uko kwakajairika mabhuroko ekupedzisira Kukundikana uye kuti dhizaini yekuisa machira akawanda inogadzirisa sei kukundikana ikoko. Chinyorwa chino ndechekutsanangura zvandakadzidza nezvekuti nei mabhuroko ekupedzisira e-triple-deck ane dhizaini yekubatanidza cross-connection achimiririra hunyanzvi hwepamusoro hwePLC distribution wiring, kuti ndezvipi hunyanzvi hunokosha, uye kuti ungasarudza sei chigadzirwa chakakodzera nzvimbo yako yekuisa.
Kunzwisisa Magadzirirwo Ekugadzira Mapuratifomu Atatu
Chinhu chikuru chinokanganisa mabhuroko emagetsi echikamu chimwe chete (single-level terminal blocks) mumashandisirwo ekugovera ePLC ndechekuti nzvimbo haina kushanda zvakanaka. DIN41616 kanaIEC 60947-7-1 Chivharo chemagetsi chinoenderana nezvinodiwa chinotora upamhi hwemodule imwe chete (kazhinji 6.2 mm kana 12 mm zvichienderana nechiyero chazvino) uye chinopa tambo imwe chete yekupinda. Kana uchida kugovera 24V DC kune gumi nemaviri akasiyana PLC input channels kubva kune common power rail, unoda gumi nemaviri terminal blocks nzvimbo, zvinoreva gumi nemaviri module-widths yeDIN rail space.
Mabhuroko emagetsi ane madhiri matatu anogadzirisa kusashanda zvakanaka kwenzvimbo iyi nekuisa mazinga matatu ekugumisa waya akazvimiririra muhupamhi hwemodule imwe chete. Magadzirirwo aya anoshandisa bhaa remagetsi rinowanzo pfuura nepakati pemazinga ese matatu, asi nhanho yega yega inoparadzaniswa nemagetsi nechikamu chekudzivirira, uye nhanho yega yega ine nzvimbo yayo yekupinda waya yakazvimiririra. Mugumisiro ndewekuti unogona kugumisa macircuit matatu akasiyana ewaya—imwe neimwe ine kubatana kwayo kwekupinda nekubuda—mukati meDIN rail footprint imwechete iyo block yemagetsi ine nhanho imwe chete yaizoda.
Nekuti madheki matatu aya ane bhawa rimwe chete remagetsi asi ane nzvimbo dzakasiyana dzekubata, gadziriro ye triple-deck yakakodzera kugoverwa kwe PLC uko une bhazi remagetsi kana chiratidzo rinowirirana richienda kunzvimbo dzakasiyana-siyana. Common busbar inobatanidza ne top deck, uye mabhazi matatu akazvimiririra e output circuits kubva pakati nepasi. Muchiitiko chekugoverwa kwe input ye 24V DC PLC, izvi zvinoreva kuti triple-deck terminal block imwe chete inogona kushandira nzira nhatu dze input kubva kune imwe common feed—zvichideredza hurefu hwe DIN rail hunodiwa nezvikamu zviviri kubva muzvitatu.
Kushanda kwesimba pakuvaka mapaneru kwakakosha. Mupaneru ye256-I/O PLC yakajairika, kuchinja kubva pakuva nemabhuroko emagetsi echikamu chimwe chete kuenda kumabhuroko emagetsi matatu enzvimbo dzekugovera magetsi kunogona kuderedza huwandu hwemabhuroko emagetsi nenzvimbo 60–80, izvo zvinoreva kuti kureba kwenzira dzemagetsi dzeDIN kwakadzikira, saizi yenzvimbo dzakavharirwa mapaneru yakadzikira (uye mutengo), uye vhoriyamu yewaya yakaderera. Takashanda nevagadziri vemapaneru avo vakaderedza avhareji yenguva yavo yekuvaka mapaneru nemaawa 4–6 papaneru imwe neimwe mushure mekushandura kune triple-deck architecture yezvikamu zvekugovera zvePLC.
Dhizaini yeCross-Connection: Kuparadzira Zviratidzo Pasina Shanduko yeWaya
Magadzirirwo e "triple-deck" ndiwo hafu chete yemhinduro yekugoverwa kwe "high-density PLC". Chikamu chechipiri ndechekugadzirwa kwe "cross-connection" - sisitimu ye "internal bus bars" ne "external jumper bars" dzinobvumira mazinga akawanda e "terminal" kubatanidzwa nemagetsi nenzira inodzorwa uye inodzorwa. Apa ndipo panonyatsoonekwa hunyanzvi hwekugadzira hwe "terminal block".
Mukutaura nezvekugoverwa kwePLC, kubatana kwepakati kunoreva kugona kubatanidza nzvimbo dzakawanda dzemagetsi padivi pechikamu cheDIN rail kuitira kuti chiratidzo chakafanana (senge 24V DC kana 0V) chiparadzirwe pamatanho akawanda emagetsi pasina kumhanyisa waya imwe neimwe pakati penzvimbo imwe neimwe. Izvi zvakafanana nekuti breadboard muprototyping yemagetsi inogovera sei ma power rails munzvimbo dzakasiyana-siyana dzemagetsi—asi nehunyanzvi hwemakanika uye chitupa chemagetsi chinodiwa munzvimbo dzekudzora maindasitiri.
Kune magadzirirwo maviri makuru ekubatanidza muchinjikwa anoshandiswa mukugadzira mabhuroko ekupedzisira ane density yakakura yePLC applications:
Nzvimbo yekubatanidza mabhazi yemukati. Bhazi remhangura kana remhangura rakasimba rinopinda mukati meimba yekuvhara, richibatanidza nzvimbo dzakawanda dzekugumisa mukati memudziyo mumwe chete. Iyi ndiyo nzira inogonesa dhizaini yebhazi remagetsi rine dhizaini yedhizaini yetatu. Bhazi remukati rinofanira kunge rakakura saizi kuti ritakure magetsi akaongororwa pasina kukwira kwakanyanya kwekupisa—zvinowanzo da nzvimbo yepakati ye4 mm² yebhazi remagetsi re30A-rated rine nzvimbo nhatu dzedeki. Hunhu hwekugumira kwebhazi remukati kune chitubu chekubatanidza hwakakosha: kubatana kwemukati kwakasununguka kana kwakasimba kuchagadzira kupisa kwenzvimbo uko kunosvibisa nzvimbo yekubatanidza nekufamba kwenguva, zvichizopedzisira zvaita kuti ikundikane.
Kubatanidza bhawa rejumper rekunze. Mabhawa ekunze anoiswa mushure mekutengesa kana emufekitori (anonziwo mabhuroko ekuparadzira kana mabhuroko ekupa) anobatanidzirwa pamusoro pemabhuroko ekupedzisira ari pedyo kuti agadzire bhazi rakajairika pakati pemidziyo yakawanda. Hurongwa uhwu hunochinjika kupfuura kubatana kwemukati nekuti unogona kugadzirisa kuti mabhuroko ekupedzisira akabatana nebhazi ripi pasina kuparadzanisa hurongwa hwemukati. Mumashandisirwo ekuparadzira ePLC, mabhawa ekunze anobatanidzirwa anowanzo shandiswa kugadzira mabhazi emagetsi akaenzana emapoka ekupinda ePLC. Mabhawa ejumper anoongororwa kuti ane simba rakafanana nebhuroko rekupedzisira pacharo, uye simba rawo rekubata kubhawa remagetsi rinochengetedzwa nechinhu chinopenya kana screw clamp.
Pa J-Guang, mabhuroko edu ekupedzisira ane dheki retatu shandisa musanganiswa wemabhazi emukati memidziyo yekurongedza mukati memidziyo uye majumper ekunze ekugovera pakati pemidziyo. Iyi dhizaini mbiri inopa vagadziri vemapaneli rusununguko rwakakura mukugadzirisa kwavo manetwork ekugovera masaini, uye inobvumira kugadziriswa kwemunda pasina kudzoreredza waya—nekuti unogona kubvisa chikamu chejumper bar chaiyo pasina kukanganisa network yese yekugovera.
Voltage uye Current Ratings: Chii IEC 60947-7-1 Chaizvoizvo Zvinoda
Chimwe chezvinhu zvisinganyatsonzwisiswi zvakanyanya pakusarudzwa kwe terminal blocks yekugoverwa kwePLC isystem yekuyera voltage. Terminal blocks ine voltage yakayerwa uye rated current, uye zvese specifications zvinotongwa nemazinga epasi rose—asi hazvichinjiki, uye kuvhiringidzika kwadzo ndeimwe yenzvimbo dzinowanzo konzera zvikanganiso zve specification zvandinosangana nazvo mumunda.
Chiyero chinoshanda chezvivharo zvemamodular terminal zvinoshandiswa mumidziyo yekudzora maindasitiri ndeichi IEC 60947-7-1 (Switchgear ine simba shoma uye controlgear—Chikamu 7-1: Midziyo yekuwedzera—Mabhuroko eTerminal econductors emhangura). Mutemo uyu unotsanangura zvinodiwa zvekuyedza zvemakanika, zvemagetsi, uye zvezvakatipoteredza izvo block yeterminal inofanira kupasa kuti iwane chiyero. Zvinodiwa zvikuru pasi pemutemo uyu zvinosanganisira:
Voltage yakayerwa. Voltage yepamusoro inogona kugarwa ne terminal block pakati pema circuits ari pedyo kana pakati pe circuit ne mounting rail (kana zvichibvira). Kune ma PLC distribution applications anoshandisa 24V DC signals, izvi hazviwanzo kuva dambudziko—asi kune three-phase motor control kana 480V AC distribution, rated voltage inova yakakosha. Nguva dzose simbisa kuti terminal block's rated voltage inosangana kana kupfuura high system voltage, kwete nominal voltage chete. Kune industrial PLC environments ine mixed voltage levels (kusanganisira 480V AC motor feeders), tinokurudzira kusarudza terminal blocks rated to630V AC zvishoma kupa mukana wakakwana wekuchengetedza.
Rated current. Iyo yakanyanya kukwira inoenderera mberi inogona kutakurwa nepakati pe terminal block pasina kudarika kukwira kwekupisa kunobvumirwa. Muganho wekuwedzera kwekupisa uri pasi pe IEC 60947-7-1 iri 45°C pamusoro pemamiriro ekunze pa rated current, inoyerwa pa central conductor. Izvi zvakakosha nekuti rated current inotora specific wire gauge (kazhinji 2.5 mm² ye 20A terminal block) uye specific ambient tembiricha. Kana ukashandisa wire gauge diki pane zvinofungidzirwa ne rating, current-carrier capacity chaiyo ichave yakaderera pane rated value nekuda kwekuwedzera kwe I²R heating mu undersize conductor.
Yakayerwa voltage yekufema. Kukwira kwemagetsi kwakanyanya (kukwira) uko terminal block inogona kutsungirira pasina kukanganiswa. Kune maPLC anopinda munzvimbo dzemaindasitiri ane mota dzinorema, ma voltage impulses anobva ku inductive switching anogona kusvika 2.5–4 kV kunyangwe pa24V DC circuits. Rated impulse voltage inotsanangurwa pa2.5 kV, 4 kV, 6 kV, kana 8 kV zvichienderana nechikamu chemidziyo (Overvoltage Category I, II, III, kana IV). Kune makabati ePLC ane madhiraivha anochinja-chinja (VFDs), kusarudza mabhuroko eterminal ane 4 kV impulse kwakakosha.
Dhigirii rekusvibiswa. IEC 60947-7-1 inoda kuti mabhuroko emagetsi apihwe mwero wechiyero chekusvibiswa (1, 2, kana 3), icho chinotsanangura mamiriro ekunze ayo michina ichashanda pasi pawo. Dhigirii rekusvibiswa 3 rinoshanda mumakabati ekudzora maindasitiri uko kusvibiswa kunokonzereswa nemhepo (senge guruva nekunyorovesa) kunogona kutarisirwa. Gara uchitsanangura Dhigirii rekusvibiswa 3 remashandisirwo emakabati eindasitiri ePLC, uye simbisa kuti daro rekuvhara nekubvisa rebhuroko remagetsi rakatsanangurwa zvinoenderana.
Nzira Dzekubvisa Waya: Screw Clamp vs. Spring Cage vs. Insulation Displacement
Nzira yekugumisa waya ndiyo nzira iyo kondakita wewaya anobata magetsi nebhawa remagetsi re terminal block. Kune mashandisirwo ekuparadzira ePLC, matekinoroji matatu makuru ekugumisa rimwe nerimwe rine zvakanakira zvakasiyana:
Kugumisa chisungo chesikuruu. Tekinoroji yagara iripo, kushandisa sikuruu kuisa kumanikidzwa papuratifomu inosunga kondakita pabhawa riripo. Kugumira kwesimbi yesikuruu kunopa kuvimbika kwakanaka kwekubata uye kunogamuchirwa zvakanyanya mumazinga emaindasitiri pasi rese. Zvisinei, zvinoda sikuruu kana kiyi yehex yekuisa (kuwedzera nguva yekuvaka mapaneru), uye zvinogona kukanganisa kubata kana sikuruu ikasunungurwa pasi pekuzununguka - nzira inozivikanwa yekukundikana mumapaneru ekudzora eindasitiri ane mabhurugwa ewaya anorema kana michina inodedera. Isu tinotsanangura kugumira kwesimbi yesikuruu yekushandiswa uko kugumira kuchawanikwa kazhinji pakugadzirisa kana uko wiring yemunda inoitwa nevashandi vanoda mhinduro yekubata.
Kugumiswa kwekeji yechirimo. Muchina wechitubu unoshandisa simba rekubatanidza waya nguva dzose, zvichibvisa kudiwa kwesikuruu uye zvichiita kuti waya isashande zvisina zvishandiso. Kugumira kwekeji yechitubu kunokurumidza kuiisa mumagetsi munzvimbo dzekugadzira uye kunodzivirira kudedera nekuti chitubu chinochengetedza simba rekubatana nguva dzose pasinei nekudedera. Zvisinei, kugumira kwekeji yechitubu kunowanzova nekudzivirira kwekubatana kwakakwira zvishoma pane kugumira kwesimbi dzesimbi dzesimbi, uye zvingasagamuchirwa mune mamwe maindasitiri ekare ayo aishandiswa kare kare. Tinokurudzira kugumira kwekeji yechitubu munzvimbo dzePLC dzine vibration yakakura dzakadai sepombi dzemvura, nzvimbo dze compressor, uye mapaneru ekutonga eHVAC.
Kugumiswa kwekudzimwa kwechinhu chinovhara (IDC). Kubata kwakafanana nebanga kunobaya waya inoputira uye kunogunzva kondakita kana waya yaiswa munzvimbo yekugumisa. Kugunzva kweIDC kunokurumidza zvikuru (hakudi kubvisa) uye kunopa simba rakanaka rekudzivirira kutenderera, asi kwakakodzera chete kune maconductor akasimba kana maconductor akaomeswa zvakanaka mukati mehukuru hwakatarwa. Hazvina kukodzera maconductor akaomeswa akaomarara. Kune waya dzePLC dzinoshandiswa netambo dzakatemwa dzakagadzirwa kare munzvimbo dzekugadzira, kugunzva kweIDC kunogona kuderedza nguva yekugunzva ne40–60% zvichienzaniswa nenzira dze screw clamp. Isu tinotsanangura kugunzva kweIDC kune vavaki vemapaneru eOEM vari kugumisa huwandu hwakawanda hwetambo dzakajairwa.
Zvinhu zvekugara: PA6.6 zvichienzaniswa nePPE/PPO uye Zvinokonzera Kushanda
Zvinhu zvekugara zve terminal block zvinosarudza mashandiro azvo ekupisa, kunonoka kwemurazvo, uye kuramba makemikari—zvose zvinhu zvakakosha munzvimbo dze PLC cabinet uko zvinhu zvinogadzira kupisa zvakaita se PLC power supplies uye drive modules zvinogadzira tembiricha yakakwira. Zvinhu zviviri zvekugara zvema industrial terminal blocks i polyamide 6.6 (PA 6.6) uye modified polyphenylene ether/polyphenylene oxide (PPE/PPO blends).
PA 6.6 (inowanzonzi nylon) ndiyo inonyanya kushandiswa pakuvaka imba ye terminal block. Zvakanakira zvayo zvikuru simba remuchina, hunhu hwakanaka hwe dielectric, uye kushandira pamwe kwemakemikari. PA 6.6 inobudirira. UL94 V-0 kunonoka kwemurazvo ukobvu hwe0.8 mm, hunogutsa zvinodiwa zvekubatidza moto IEC 60947-7-1Zvisinei, PA 6.6 ine muganho wekupisa unoshanda nguva dzose weinenge 105°C, uye inonwisa hunyoro nekufamba kwenguva—izvo zvinogona kuderedza simba rayo re dielectric kusvika ku30% munzvimbo dzine hunyoro hwakawanda.
Zvishandiso zvePPE/PPO zvinodzivirira hunyoro zvakanyanya uye tembiricha dzinoshanda nguva dzose (kusvika 115–120°C). Hunhu hwazvo hwe dielectric hwakagadzikana zvakanyanya pahuwandu hwehunyoro, izvo zvinoita kuti zvifarirwe pakuisa PLC panze kana ine hunyoro hwakawanda. Zvisinei, PPE/PPO inodhura kupfuura PA 6.6, uye kudzivirira kwayo kukanganiswa kwemagetsi patembiricha yakaderera kwakaderera—saka pakushandiswa kwemakabati ePLC emukati meimba, PA 6.6 inoramba iri sarudzo inodhura zvishoma.
Kune mabhuroko emagetsi ePLC anoshandiswa mumakabati akavharwa ane tembiricha yemhepo inosvika 55°C (inowanzoitwa mumakabati akavharwa ane zvikamu zvinogadzira kupisa), dzimba dzePA 6.6 dzakakwana. Kune kuiswa munzvimbo dzekunze, kuratidzwa kwezuva zvakananga, kana nzvimbo dzemaindasitiri dzinopisa zvakanyanya, tinokurudzira dzimba dzePPE/PPO. Nguva dzose tarisai zvinodiwa zvemba dziri papepa redata—masheti mazhinji emagetsi emagetsi haanyatso ratidza zvinhu zvemba, izvo zvinofanira kunge zviri chiratidzo chekuti imba yacho inofanira kunge iri chaiyo.
Zvinyorwa zveKushandisa: Kuisa Mabhuroko Emagetsi Akawanda Munzvimbo Dzechokwadi dzePLC
Kuva nemidziyo yemagetsi yakapihwa yekushandiswa kwekugovera kwePLC mumabasa akasiyana-siyana—kugadzira mota, kugadzira chikafu nezvinwiwa, kugadzirisa mvura, uye kudzora HVAC—ndinoda kugovera maitiro ekushandisa anoshanda ayo anogara achipa mhedzisiro yakanakisa uye zvikanganiso zvemagadzirirwo zvinowanzo kukonzera matambudziko mumunda.
Nheyo inonyanya kukosha yekushandisa ndeye kupatsanurwa nerudzi rwechiratidzo. Mukabati rePLC rine ma voltage akasanganiswa (480V AC motor feeders, 230V AC control circuits, 24V DC PLC I/O), ma terminal blocks e voltage yega yega anofanira kupatsanurwa, kungave nekuiswa paDIN rails dzakasiyana dzine kupatsanurwa kwakajeka kana nekushandisa barrier-style terminal blocks dzinopa kupatsanurwa kwe physical pakati pema circuits akasiyana-siyana ari pedyo. Kupatsanurwa uku kunodiwa ne IEC 60204-1 (Kuchengetedzwa kwemichina—Midziyo yemagetsi) uye hazvidiwi muzvirongwa zvakawanda zvekuongorora kuchengetedzeka kwemaindasitiri.
Kune chikamu chekugovera che24V DC PLC I/O, tinokurudzira kushandisa gadziriro ye triple-deck apo denga repamusoro riri bhasi remagetsi rinowanzo shandiswa (24V DC kubva kumagetsi), denga repakati rinodyisa boka rekupinda rePLC A, uye denga repasi rinodyisa boka rekupinda rePLC B. Kugadziriswa uku kunobvumira bhazi rinowanzo shandiswa kuti rive rakasiyana nekuda kwezvinangwa zve lockout-tagout nepo mapoka ese ekupinda achiramba aine simba, uye kunoita kuti mapoka ega ega ekupinda abviswe kuti agadziriswe pasina kukanganisa rimwe boka.
Chikanganiso chakajairika chandinoona ndechekuderedza chiyero chemagetsi emagetsi emagetsi ePLC. Nzira dzemagetsi dze24V DC dzinopa simba remagetsi e32 PLC pa20 mA pachiteshi chimwe nechimwe dzine huwandu hwe640 mA—zviri mukati mechiyero chemagetsi chemagetsi chero chipi zvacho. Zvisinei, magetsi emagetsi emagetsi anobva kuPLC input modules (anogona kuva 3–5x kupfuura magetsi emagetsi emagetsi panguva yekushanda) anogona kumanikidza chiteshi chemagetsi emagetsi kwenguva pfupi. Tinokurudzira kutsanangura mabhuroko emagetsi ePLC ane simba remagetsi rakarongwa rinenge 150% yemagetsi emagetsi akaverengerwa, kuti pave nemuganhu wakakwana wemamiriro emagetsi emagetsi emagetsi uye ekutadza.
Chimwe chinhu chinobatsira kufunga nezvacho ndeche manejimendi yewaya uye nzira yekufambisa. Mabhuroko emagetsi ane madheki matatu anoderedza kuwanda kwewaya asi anowedzera kuwanda kwewaya panzvimbo yega yega yekugumira (waya nhatu panzvimbo peimwe). Izvi zvinoda kunyatsotarisirwa pakusunga waya pamutsetse webhuroko remagetsi kuitira kuti pasave newaya imwe chete inokombama zvakanyanya, izvo zvinogona kukanganisa kuvharwa kwewaya nekufamba kwenguva. Tinokurudzira kuchengetedza dhayamita yekukombama yewaya ka3x kupfuura dhayamita yekunze kwewaya kuti waya imhanye.
Kugadzirisa, Kugadzirisa Matambudziko, uye Kugadzirisa Munda
Chimwe chezvikonzero zvinonyanya kufadza zvema "high-density triple-deck terminal blocks" mu "PLC distribution applications" inyaya yekuchengetedza nekugadzirisa matambudziko avanopa. Kana "PLC input channel" ikakundikana mu "conventionally wired panel", nzira yekuongorora inoda kuteverwa kwe "waya" yega yega kubva pa "input module" ichidzokera kuburikidza ne "terminal block" kuenda ku "field device" - maitiro anogona kutora maawa akawanda mu "complex harness". Mu "well designed". bhuroko rekupedzisira rine dheki nhatu Kuiswa, nzira yekuongorora ipfupi zvikuru nekuti nzvimbo yega yega yekuvhara terminal inoita basa rakatsanangurwa uye rinofungidzirwa.
Kune shanduko dzemumunda—dzinoitika kakawanda kupfuura zvinotarisirwa nevakawanda vanogadzira masisitimu ekudzora—mabhuroko emagetsi ane madhiri matatu ane jumper bar yekunze anobatana nemamwe mabhenefiti. Kana kuwedzera sisitimu yePLC kuchida kuwedzera nzira dzekupinda, maitiro acho anowanzo ganhurira pakuwedzera nzvimbo dzemabhuroko emagetsi kune chikamu cheDIN rail chiripo, kuisa majumper bars matsva kuti awedzere bhazi rekuparadzira kunzvimbo itsva, uye kugumisa waya itsva dzemumunda. Izvi zvinokurumidza kupfuura kumhanya waya itsva kubva pa central terminal block array kuenda kune imwe neimwe I/O point itsva.
Kuti zvirambe zvichigadziriswa, ndinokurudzira kuti pave nehurongwa hwekuongorora torque ye terminal block ye screw-clamp terminations munzvimbo dzine vibration yakanyanya. Nguva ye torque inoenderana ne vibration level: kumakabati ari munzvimbo dzemaindasitiri (dzakajairika pasi peworkshop), torque yegore negore yakakwana; kumakabati ari pamuchina unodedera (mapombi, ma compressor, ma vibrating screens), test ye semi-annual inonyanya kungwara. Shandisa calibrated torque screwdriver yakaiswa pa datasheet-specified torque value—kazhinji 0.5–0.8 Nm ye 4 mm² terminal block.
Kutsvaga uye Kusimbiswa Kwemhando: Zvekukumbira Kubva Kumutengesi Wako
Kwete zvese mabhuroko ekupedzisira ane huwandu hwakawanda zvakagadzirwa zvakaenzana, uye misiyano yezvakatsanangurwa inoparadzanisa chigadzirwa chakagadzirwa zvechokwadi kubva kune chakagadziriswazve chigadzirwa haisi nguva dzose inoonekwa mumufananidzo wekatarogu. Hechino chandinokurudzira kuti ubvunze kubva kwauri mutengesi weblock terminal:
Kumbira IEC 60947-7-1 mushumo webvunzoChero mugadziri anotaura kuti anotevedzera mutemo uyu anofanira kukwanisa kupa mushumo wekuongororwa kubva ku laboratori yekuongorora yakagamuchirwa (yakadai se TÜV Rheinland, UL, CSA, kana Bhizinesi reVeritas). Mushumo wekuyedza unonyora kukosha chaiko kwakayerwa kwesimba re dielectric, kuramba kudziya, kukwira kwekushisa, uye kutsungirira kwemuchina—kwete chete kuyera kwakataurwa. Mutengesi asingakwanisi kana kusazopa gwaro iri mucherechedzo wakakomba.
Simbisa kuti chiyero chemagetsi emagetsi uye dhigirii rekusvibiswa kwemhepo pamushumo webvunzo. Mapepa mazhinji edata e generic terminal block anoratidza IEC 60947-7-1 chikumbiro chekutevedzera mutemo pasina kutaura chiyero chevoltage impulse kana dhigirii rekusvibiswa—zvinoreva kuti ma parameter iwayo haana kuongororwa, kana kuti mhedzisiro yebvunzo yakanga isina kunaka zvekuti yakabviswa mudhatabheti. Kune nharaunda dzeindasitiri dzePLC, unofanirwa kuona Pollution Degree 3 neImpulse Voltage 4 kV kana kupfuura sezvinodiwa zvishoma.
Simbisa kuti pepa reruzivo rwezvinhu zvekugaraKumbira giredhi rezvinhu zvekugara uye UL94 chiyero chekubvira. PA 6.6 terminal blocks dzinofanirwa kunge dzakanyoreswa kuti UL94 V-0 pahukobvu hwemadziro eimba anoshandiswa muchigadzirwa. Kana mutengesi asingakwanise kupa pepa reruzivo rwezvinhu, chikumbiro chezvinhu zveimba hachina kusimbiswa.
Ongorora Specification yekudzivirira kubata. Chivharo chemagetsi chemhando yepamusoro chinofanira kunge chine simba rekudzivirira kubata riri pasi pe1 mΩ (milliohm) pamagetsi akayerwa, akayerwa panzvimbo yekugumisa waya. Kudzivirira kubata kwakanyanya kunoratidza kugadzirira kwepasi pemagetsi kusina kunaka kana dhizaini yesimba rematsime/machira, zvese izvi zvinotungamira kukundikana nekukurumidza mukushandiswa kwemagetsi ane simba remagetsi kana tembiricha yepamusoro.
Mafambiro Ari Kubuda: Smart Terminal Blocks uye Integrated Diagnostics
Musika wezvivharo zvemagetsi uri kutanga kuona kuunzwa kwezvinhu zvakasanganiswa zvekuongorora zvaisambogoneka kare nezvikamu zvisingashande. Vagadziri vakati wandei—kusanganisira J-Guang—vari kugadzira zvigadzirwa zvezvivharo zvemagetsi zvine masensa ekutarisa ari mukati, ma LED emamiriro ezvinhu, uye ma interface ekutaurirana anobvumira terminal block pachayo kuzivisa mamiriro ayo kuPLC kana BMS kuburikidza nebhazi redhijitari.
Kune mashandisirwo ekugovera ePLC, budiriro inovimbisa zvikuru ndeyekubatanidzwa kwe mabhazi anoona magetsi iyo inogona kuona maseketi akavhurika kana ma current values asina kujairika panzvimbo dze terminal block dzisina mamwe ma external sensors. Izvi zvinogonesa kuzivisa kuchengetedza (pane reactive failure response) kune network yePLC distribution wiring. Terminal block ine integrated current sensor inoshuma kuPLC pamusoro pe Modbus RTU kana CANopen interface inogona kuzivisa vashandisi nezvematambudziko ekubatanidza waya vasati vakonzera kutadza kwekupinda kwePLC.
Tiri kuonawo kuwedzera kwekushandiswa kwe nzira dzekusunungura pasina zvishandiso kune mabhuroko ekupedzisira ekeji yechitubu anobvumira kubviswa kwewaya pasina maturusi—chinhu chinoderedza zvakanyanya nguva yekupinda mukugadzirisa. Kusanganiswa kwekugumiswa kwekeji yechitubu (kwekukurumidza kwekuisa kwekutanga) nekuburitswa kwemidziyo isina maturusi (kwekukurumidza kwekupinda mukugadzirisa) kunonyanya kukosha kunzvimbo dzekugovera dzePLC uko mari yekutanga yekuvaka mapaneru uye mari yekuchengetedza inoenderera mberi zvinhu zvakakosha.
Mibvunzo Inowanzo bvunzwa
Ndeipi mukana mukuru wekushandisa terminal blocks dze triple-deck pane single-level terminal blocks mukugoverwa kwePLC?
Mabhuroko emagetsi ane madheki matatu anounganidza mazinga matatu ekubatana akazvimiririra muhupamhi hweDIN rail module imwe chete, zvichiita kuti macircuit matatu akasiyana agumiswe munzvimbo yeimwe. Kune waya dzePLC distribution, izvi zvinoderedza upamhi hwepaneru kusvika ku60% zvichienzaniswa nemagadzirirwo akaenzana edanho rimwe chete, zvinoderedza huwandu hwemabhuroko emagetsi zvakanyanya, uye zvinorerutsa waya nekubatanidza chiteshi chemagetsi chakafanana uye macircuit akawanda ebazi kuita mudziyo mumwe chete.
Chii chinoita IEC 60947-7-1 Zvinorevei kutevedzera mitemo pakusarudzwa kweblock yeterminal?
IEC 60947-7-1 ndiyo mwero wepasi rose unodzora mabhuroko emagetsi emodular econductors emhangura. Kutevedzera mitemo zvinoreva kuti chigadzirwa chapasa bvunzo dzemakanika, dzemagetsi, uye dzezvakatipoteredza dzinosanganisira simba re dielectric (kazhinji 2.5–8 kV impulse), kuramba kudziya kwemhepo, kukwira kwekushisa pamagetsi akayerwa, uye cycling yemakanika. Gara uchikumbira mushumo wekuyedza kubva kurabhoritari inotenderwa—zvichemo zvedatasheet zvisina magwaro ekuyedza hazvigone kusimbiswa.
Ndeipi nzira yekugumisa waya yakanakira nzvimbo dzePLC dzinodedera zvakanyanya?
Kugumira kwekeji yechitubu ndiyo sarudzo yakanakisa kune nzvimbo dzePLC dzinodedera zvakanyanya nekuti mashandiro echitubu anoramba aine simba rekubata pasinei nekufamba kunokonzerwa nekudedera. Kugumira kwekiyi yescrew kunogona kusunungura kana paine kudedera kwenguva refu, zvichikonzera kuramba kwakawanda kwekubata, kudziyisa munzvimbo, uye kutadza kushanda. Kune nzvimbo dzakajairika dzemaindasitiri dzisina kudedera kwakanyanya, screw clamp kana spring cage inopa kuvimbika kwakakwana.
Ndingaisa sei saizi ye terminal block yekugovera simba rePLC 24V DC?
Verenga huwandu hwemagetsi anodzikama (huwandu hwemagetsi ese ePLC input channel currents), wobva watsanangura terminal block yakayerwa kusvika ku150% yehuwandu ihwohwo kuti ikwane inrush current. Semuenzaniso, maPLC inputs 32 pa20 mA imwe neimwe = 640 mA total; tsanangura terminal block yakayerwa kusvika ku1A. Voltage yakayerwa inofanira kunge iri 630V AC zvishoma pa IEC 60947-7-1, kunyangwe kumasekete e24V DC, kupa mwero wakakwana wekuchengetedzwa uye chiyero chedhigirii rekusvibiswa.
Ndezvipi zvinhu zvekugara zvandinofanira kutaura nezvekabhineti yePLC inoshanda pa50°C?
Kune makabati ePLC akavharirwa patembiricha inosvika 55°C, PA 6.6 (polyamide 6.6) imba ine chiyero che UL94 V-0 Pahukobvu hwe 0.8 mm zvakakwana. Zvisinei, PA 6.6 inonwisa hunyoro nekufamba kwenguva, izvo zvinoderedza simba re dielectric mumamiriro ekunze ane hunyoro hwakawanda. Kune nzvimbo dzekunze, nzvimbo dzine hunyoro hwakawanda, kana tembiricha dziri pamusoro pe 85°C, imba yePPE/PPO inopa hunyoro hwakanyanya uye tembiricha yepamusoro yekushanda (kusvika 115–120°C).
Ndeupi musiyano uripo pakati pebhazi remukati nebhazi rekunze rejumper rinobatana?
Bhawa remukati rebhazi rinobatanidza madheki matatu mukati memudziyo mumwe chete weblock block, zvichigonesa dhizaini yemabhawa matatu ane shared-current-bar. Bhawa rekunze rejumper rinobatanidza zvishandiso zvakawanda zveblock zveterminal zviri pedyo pamwe nechikamu cheDIN rail, zvichigadzira bhazi rekugovera rakajairika pakati pemutsetse weblock yeterminal. Bhawa remukati rebhazi rinopa kubatana kwemukati memudziyo; mabhawa ejumper ekunze anopa kubatana kwepakati pemudziyo. Ose anodiwa kuti pave nehurongwa hwakakwana hwePLC distribution.
Ndingasimbisa sei zvichemo zvemhando yepamusoro zvemutengesi we terminal block?
Kumbira IEC 60947-7-1 mushumo webvunzo kubva kumurabhoritari yebvunzo inotenderwa (TÜV Rheinland, UL, CSA, kana Bhizinesi reVeritas). Mushumo wacho unofanira kunyora kukosha chaiko kwakayerwa kwesimba re dielectric, simba re impulse voltage, mwero wekusvibiswa, kukwira kwekushisa, uye kutsungirira kwemuchina—kwete chete kurongeka kwataurwa. Kumbirawo pepa reruzivo rwezvinhu zveimba rine UL94 chiyero, uye simbisa zvinodiwa kuti munhu arambe kubata (zvinofanira kunge zviri pasi pe1 mΩ). Vatengesi vasingakwanise kupa magwaro aya vane njodzi huru yemhando.
Chii chinodiwa kuti terminal block ine triple-deck igadziriswe mu PLC cabinet?
Chinodiwa chikuru chekugadzirisa ma terminal blocks e screw clamp munzvimbo dzine vibration yakanyanya ndechekuongorora torque nguva nenguva (gore rega rega munzvimbo dzakajairwa dzemaindasitiri, hafu yegore mumakabati emuchina anodedera). Kuguma kwe spring cage hakudi torque asi kunofanirwa kuongororwa nguva nenguva kuti spring ishande zvakanaka. Ma terminal blocks ese anofanirwa kuongororwa nemaziso gore rega rega kuti aone kana paine zviratidzo zvekupisa zvakanyanya (kuchinja kweruvara, kuteverwa kwecarbon paimba), uye chero terminal block inoratidza zviratidzo izvi inofanira kutsiviwa nekukasika.