HIMA F8601模塊
電纜和連接器。帶有擴(kuò)展高密度接線板（如接線板IC694TBB132）的模塊整體深約?英寸（13mm）。圖11:RX3i串行擴(kuò)展背板尺寸和間距2.4系統(tǒng)布線遵循以下信息，以避免可能的I/O模塊布線錯(cuò)誤：? 標(biāo)記進(jìn)出I/O設(shè)備的所有導(dǎo)線。在進(jìn)入模塊面板門的插件上記錄電路識(shí)別號(hào)或其他相關(guān)數(shù)據(jù)。PACSystems*RX3i系統(tǒng)手冊(cè)第3節(jié)GFK-2314T 2019年9月安裝25? 電線應(yīng)進(jìn)行布線，以使每個(gè)現(xiàn)場I/O連接器相對(duì)于其各自的模塊固定。警告：除此處提供的信息外，請(qǐng)始終遵守適用于您所在區(qū)域或設(shè)備類型的所有接線和安全規(guī)范。例如，在美國，大多數(shù)地區(qū)都采用了國家電氣規(guī)范標(biāo)準(zhǔn)，并規(guī)定所有布線都符合其要求。在其他國家，將適用不同的規(guī)范。為了確保人員和財(cái)產(chǎn)的最大安全，您必須遵守這些規(guī)范。否則可能導(dǎo)致人身傷害或死亡、財(cái)產(chǎn)損失或破壞，或兩者兼而有之。2.4.1顏色編碼電線這些顏色編碼通常用于美國制造的工業(yè)設(shè)備。如果它們與適用于您所在地區(qū)或設(shè)備類型的代碼不同，請(qǐng)遵循適用的代碼。除了滿足代碼要求，電線顏色編碼使測試和故障排除更安全、更快、更容易。? 綠色或帶條紋的綠色-接地? 黑色-主交流? 紅色-輔助交流? 藍(lán)色-DC? 白色-普通或中性? 黃色-輔助電源不受主斷路器控制。提醒維護(hù)人員，即使設(shè)備與主電源斷開，也可能存在電源（來自外部電源）。2.4.2電線布線為了減少PLC電線之間的噪聲耦合，應(yīng)將交流電源線和離散輸出模塊線等電氣噪聲布線與直流和模擬輸入模塊線或通信電纜等低電平信號(hào)布線分開。在可行的情況下，單獨(dú)分組以下類型的接線：? 交流電源接線包括PLC電源的交流輸入，以及控制柜中的其他交流設(shè)備。? 模擬輸入或輸出模塊接線應(yīng)屏蔽，以進(jìn)一步減少噪聲耦合。? 離散輸出模塊接線通常包括開關(guān)電感負(fù)載，在關(guān)閉時(shí)會(huì)產(chǎn)生噪聲尖峰。? 直流輸入模塊接線雖然在內(nèi)部受到抑制，但屬于低電平輸入，應(yīng)通過觀察這些接線實(shí)踐進(jìn)一步防止噪聲耦合。? 通信電纜是產(chǎn)生噪聲的布線電纜，應(yīng)遠(yuǎn)離Genius總線或串行電纜等布線。PACSystems*RX3i系統(tǒng)手冊(cè)第3節(jié)GFK-2314T 2019年9月安裝26如果交流或輸出接線束必須經(jīng)過噪聲敏感信號(hào)接線束附近，請(qǐng)避免將它們并排運(yùn)行。如果它們必須穿過，請(qǐng)將它們以直角布線，以盡量減少它們之間的耦合。2.4.2.1將類似模塊分組以保持電線隔離如果可行，將背板上的類似模塊分組在一起可有助于保持電線隔離。例如，一個(gè)背板可以僅包含AC模塊，而另一個(gè)背板只能包含DC模塊，并進(jìn)一步按輸入和輸出類型進(jìn)行分組。2.5系統(tǒng)接地控制系統(tǒng)的所有部件及其控制的設(shè)備必須正確接地。這一點(diǎn)特別重要，原因如下：? 從系統(tǒng)所有部件到接地的低電阻路徑可在短路或設(shè)備故障的情況下最大限度地減少?zèng)_擊。? RX3i系統(tǒng)需要正確接地才能正常工作。? PLC系統(tǒng)中組合在一起的所有背板必須具有公共接地連接。
cables and connectors. Modules with Extended High-Density Terminal Blocks (such as Terminal Block IC694TBB132) are approximately ?-inch (13mm) deeper overall. Figure 11: RX3i Serial Expansion Backplane Dimensions and Spacing 2.4 System Wiring Adhere to the following information to avoid possible misrouting of wiring to I/O modules: ? Label all wires to and from I/O devices. Record circuit identification numbers or other pertinent data on the inserts that go into the faceplate door of the module. PACSystems* RX3i System Manual Section 3 GFK-2314T Sept. 2019 Installation 25 ? Wires should be dressed so that each field I/O connector is fixed relative to its respective module. WARNING In addition to information provided here, always follow all wiring and safety codes that apply to your area or your type of equipment. For example, in the United States, most areas have adopted the National Electrical Code standard and specify that all wiring conform to its requirements. In other countries, different codes will apply. For maximum safety to personnel and property you must follow these codes. Failure to do so can lead to personal injury or death, property damage or destruction, or both. 2.4.1 Color Coding Wires These color codes are commonly used in industrial equipment manufactured in the United States. Where they differ from codes that apply to your area or your type of equipment, follow your applicable codes instead. Besides satisfying code requirements, wire color coding makes testing and troubleshooting safer, faster, and easier. ? Green or green with stripe- Ground ? Black - Primary AC ? Red - Secondary AC ? Blue - DC ? White - Common or neutral ? Yellow - Secondary power source not controlled by the main disconnect. Alerts maintenance personnel that there may be power present (from an external source) even if the equipment is disconnected from its main power source. 2.4.2 Wire Routing To reduce noise-coupling among PLC wires, electrically-noisy wiring such as AC power wiring and discrete output module wiring should be separated from low-level signal wiring such as DC and analog input module wiring or communications cables. Where practical, group separately the following types of wiring: ? AC power wiring includes the AC input to the PLC power supply, as well as other AC devices in the control cabinet. ? Analog Input or Output Module wiring should be shielded to further reduce noise coupling. ? Discrete Output Module wiring often includes switch-inductive loads that produce noise spikes when switched off. ? DC Input Module wiring, although suppressed internally, are low-level inputs that should be further protected against noise coupling by observing these wiring practices. ? Communications Cables are noise-producing wiring cables from which wiring such as Genius bus or serial cables should be kept away. PACSystems* RX3i System Manual Section 3 GFK-2314T Sept. 2019 Installation 26 Where AC or Output wiring bundles must pass near noise-sensitive signal wiring bundles, avoid running them beside each other. If they have to cross, route them a right angle to minimize coupling between them. 2.4.2.1 Grouping of Similar Modules to Keep Wires Segregated If practical, grouping similar modules together on the backplanes can help keep wiring segregated. For example, one backplane could contain AC modules only, while another could contain DC modules only, with further grouping by input and output types. 2.5 System Grounding All components of a control system and the devices it is controlling must be properly grounded. This is particularly important for the following reasons: ? A low-resistance path from all parts of a system to earth minimizes exposure to shock in the event of short circuits or equipment malfunction. ? The RX3i system requires proper grounding for correct operation. ? All backplanes grouped together in the PLC system must have a common ground connection.
