imikhiqizo

Amasignali okokufaka abelana ngembuyiselo eyodwa yesignali eyodwa. Ukuze uthole ukungavikeleki okuhle komsindo, sungula izimiso zesignali yesistimu, izindawo zokubhekisela zokunikezwa kwamandla, kanye nezizathu eziseduze nalawo maphoyinti aphethwe kanye. Isiginali evamile (njengoba ichazwa Amazinga amaningi) yemojula yokufaka iwuhlangothi olunegethivu lokunikezwayo okungu-24 volt. Indawo ye-chassis yemojuli iya kutheminali yaphansi ye-I/O Terminal Block. Ukuze uthuthukise ukuvikeleka komsindo, xhuma lokhu ku-chassis ebiyelwe ngobude obufushane bocingo. Ama-transmitter amabili asebenza nge-wire loop (uhlobo 2) kufanele abe nezinzwa ezihlukene noma ezingasekelwe phansi. Amadivayisi anikwe amandla ngeluphu kufanele asebenzise amandla afanayo njengemojuli yokufaka. Uma kufanele kusetshenziswe isiphakeli esihlukile, xhuma isignali evamile kumojula evamile. Futhi, gxilisa iphuzu elilodwa kuphela kusiginali evamile, okungcono kakhulu kumojula yokufaka. Uma ukunikezwa kwamandla kungenasisekelo, yonke inethiwekhi ye-analog inamandla okuntanta (ngaphandle kwezihlangu zekhebula). Ngakho-ke lesi sekethi singahlukaniswa uma sinokunikezwa okuhlukile okuhlukile. Uma izintambo ezivikelwe zisetshenziselwa ukunciphisa umsindo, izintambo eziyisivikelo kufanele zibe nendlela ehlukile eya emhlabathini kusukela kunoma iyiphi indawo yokuphakela amandla eluphu ukuze kugwenywe ukubangela umsindo ngenxa yokuphuma kwamanzi. Izithutha zezintambo ezintathu zidinga intambo yesithathu ukuze zinikeze amandla. Isihlangu singase sisetshenziswe njengembuyiselo yokunikezwa kwamandla. Uma isistimu ihlukanisiwe, ucingo lwesithathu (ikhebula elingunxantathu) kufanele lusetshenziswe esikhundleni sehawu lamandla, futhi izihlangu zibe phansi. Ukunikezwa kwamandla okuhlukile, okukude nakho kungasetshenziswa. Ukunikezwa okuntantayo kufanele kusetshenziselwe imiphumela engcono kakhulu. Ukugawula kokubili okunikezwayo kudala iluphu yaphansi. Isekethe isengasebenza naphezu kwalokhu, nokho ukuzuza imiphumela emihle kudinga ukuthotshelwa kwe-voltage okuhle kakhulu komthumeli. Ama-Isolated 4 wire transmitters angagwema izinkinga ze-ground loop ngezinzwa ezinikwe amandla ukude. Uma imojula ifakwe Ku-I/O Terminal Block enezikhumulo zebhokisi noma i-I/O Terminal Block enezikhumulo Zesithiyo, I-Axiliary Terminal Block kufanele isetshenziselwe ukunikeza amatheminali ezintambo ezengeziwe. Ku-I/O Terminal Block enezixhumi Zezintambo Eziya Ebhodini, izindawo zokuxhuma zangaphandle ngokuvamile zikhethwa, nakuba i-Axiliary Terminal Block ingasetshenziswa. I-Axiliary Terminal Blocks inawo wonke amatheminali axhumeke ndawonye ngaphakathi. I-Axiliary Terminal Block enamatheminali amabhokisi inamatheminali angu-13, ngayinye ethatha i-AWG # 14 eyodwa (avg 2.1mm2 ingxenye enqamulayo) ukuya ku-AWG #22 (avg 0.36mm2 cross section) intambo, noma izintambo ezimbili ezifika ku-AWG #18 (isilinganiso sesigaba esiphambanayo esingu-0.86mm). I-Axiliary Terminal Block enamatheminali avimbelayo inamatheminali ayisishiyagalolunye, ngayinye ingafaka intambo eyodwa noma ezimbili kufika ku-AWG #14 (avg 2.1mm2 cross section). Kuma-transmitter anezintambo ezi-3 nezingu-4, i-I/O Terminal Block enamatheminali ebhokisi kanye ne-Axiliary I/O Terminal Block ingasetshenziswa ngaphandle kwanoma yimuphi omunye umucu wetheminali owengeziwe. Kudingeka umugqa owengeziwe wetheminali ku-I/O Terminal Block enezithiyo kanye Nesivimbeli Setheminali Esisiza. Amatheminali e-+24V Out awumkhiqizo oxutshiwe ovamile osuka ku-DC+ ukuze ushayele izinzwa zezintambo ezi-loop-powered 2. Nganoma yini enye ngaphandle kwama-2-wire transmitter, gxuma i-Auxiliary Terminal Block uye ku-DC–.