公司主營(yíng)產(chǎn)品圖展示
產(chǎn)品優(yōu)勢(shì)
1：國(guó)外專業(yè)的供貨渠道，具有價(jià)格優(yōu)勢(shì)
2：產(chǎn)品質(zhì)量保證，讓您售后無(wú)憂
3：全國(guó)快遞包郵
4：一對(duì)一服務(wù)
公司主營(yíng)產(chǎn)品文字介紹
PLC可編程控制器模塊，DCS卡件，ESD系統(tǒng)卡件，振動(dòng)監(jiān)測(cè)系統(tǒng)卡件，汽輪機(jī)控制系統(tǒng)模塊，燃?xì)獍l(fā)電機(jī)備件等，優(yōu)勢(shì)品牌：Allen Bradley、BentlyNevada、ABB、Emerson Ovation、Honeywell DCS、Rockwell ICS Triplex、FOXBORO、Schneider PLC、GE Fanuc、Motorola、HIMA、TRICONEX、Prosoft等各種進(jìn)口工業(yè)零部件、歐美進(jìn)口模塊。
產(chǎn)品廣泛應(yīng)用于冶金、石油天然氣、玻璃制造業(yè)、鋁業(yè)、石油化工、煤礦、造紙印刷、紡織印染、機(jī)械、電子制造、汽車制造、塑膠機(jī)械、電力、水利、水處理/環(huán)保、鍋爐供暖、能源、輸配電等等
產(chǎn)品詳情內(nèi)容介紹
PM5301直流驅(qū)動(dòng)電源板
該模塊采用八個(gè)高可靠性汞濕繼電器來(lái)控制負(fù)載。
八個(gè)輸出端中的每一個(gè)都與I/O總線和其他輸出端電氣隔離繼電器線圈的七個(gè)輸出。這些輸出能夠切換100 VA與交流或直流負(fù)載相關(guān)的最大瞬時(shí)功率。此類設(shè)備可能范圍從繼電器和指示燈到多路低電平模擬信號(hào)。
每個(gè)輸出都有一個(gè)RC緩沖器，以保護(hù)水銀接觸觸點(diǎn)不產(chǎn)生電弧由感應(yīng)負(fù)載施加的電壓快速上升引起觸點(diǎn)瞬時(shí)斷開。輸出信號(hào)可以承受嚴(yán)重的工業(yè)環(huán)境中可能遇到的電壓瞬變，即電壓瞬變不會(huì)通過(guò)繼電器傳播到Ourbus，從而保護(hù)所有其他控制器系統(tǒng)部件不受損壞。所有輸出電路也熔斷以防止過(guò)載電流。簡(jiǎn)化示意圖
以下是B840–108繼電器輸出模塊的簡(jiǎn)化示意圖。
模塊可由用戶配置，可設(shè)置為常開或常開繼電器的閉合操作如下所述。
您還可以選擇配置當(dāng)最小泄漏電流應(yīng)用時(shí)
移除RC緩沖電路隨著數(shù)據(jù)多路復(fù)用的使用。
邏輯接口芯片同時(shí)從PLC在每次掃描時(shí)都會(huì)保存這些樣本，以驅(qū)動(dòng)相應(yīng)的簧片繼電器線圈。
假設(shè)為常開跳線配置，當(dāng)繼電器線圈通電后，簧片繼電器觸點(diǎn)將電流從輸出A端子傳導(dǎo)至輸出B端子。
該模塊在用戶連接的剛性布線系統(tǒng)中執(zhí)行連接到卡籃前面的接線板。
I/O模塊滑入卡籃的插槽，并通過(guò)配合與端子排接觸連接器。
用戶連接到能夠固定的標(biāo)準(zhǔn)螺釘型端子
每個(gè)端子最多兩根AWG 14實(shí)心或絞線。端子編號(hào)自頂部一個(gè)，底部20個(gè)，如圖所示。
數(shù)據(jù)總線連接通過(guò)標(biāo)準(zhǔn)OURBUS接口連接器進(jìn)行卡籃后部的屏蔽背板。
模塊可以放置在I/O指令的任何位置，而不干擾任何其他模塊活動(dòng)當(dāng)模塊插入卡籃時(shí)，它會(huì)拾取一個(gè)低通過(guò)將模塊屏蔽連接至底板的接地屏蔽接地。
端子編號(hào)和輸出連接下圖顯示了電源應(yīng)用的典型電路連接B842–008模塊。注：由于每個(gè)輸出都與其余輸出隔離，因此應(yīng)分開電源每個(gè)負(fù)載都可以使用源。每個(gè)輸出可以連接到電流源或當(dāng)前接收器操作。
注：可以使用一個(gè)或多個(gè)輸出通道點(diǎn)亮活動(dòng)指示燈工作不正常。
Simplified Schematic Diagram
Following is a simplified schematic diagram of the B840–108 relay output module. The module is user–configurable as to setting up for normally–open or normally– closed operation of the relays as described below. You can also optionally configure the RC snubber circuit to remove it when minimal leakage current applications such as data multiplexing are being used. The logic interface chip samples the eight logic level signals simultaneously from the PLC on each scan and holds these samples to drive the appropriate reed relay coil. Assuming a normally–open jumpered configuration, when the relay coil is energized, the reed relay contacts conduct current from the output A terminal to the output B terminal.
The module utilizes eight high–reliability mercury–wetted relays to control the loads. Each of the eight outputs is electrically isolated from the I/O bus and from the other seven outputs by the relay coil. These outputs are capable of switching 100 VA maximum instantaneous power associated with ac or dc loads. Such devices may range from relays and pilot lamps to multiplexed low level analog signals. Each output has an RC snubber to protect the mercury wetted contacts from arcing caused by rapid rate of rise of applied voltage from inductive loads upon instantaneous opening of the contacts. The output signals can withstand severe voltage transients that may be encountered in industrial environments—i.e., the voltage transients will not propagate through the relay to the Ourbus, thus protecting all other controller system components from damage. All output circuits are also fused to protect against overload currents.
Field Connections
This module performs in a rigid wiring system where the user connections are made to terminal strips attached to the front of the card basket. The I/O modules slide in slots of the card basket and make contact with the terminal strips via the mating connector. User connections are made to standard screw-type terminals capable of securing up to two AWG 14 solid or straded wires per terminal. Terminals are numbered from one at the top to 20 at the bottom as shown in the figure. The data bus connections are made via the standard OURBUS interface connector to a shielded backplane at the rear of the card basket. The module may be placed in any location in the I/O struction without interfering with any other module′s operation. When the module is inserted into the card basket, it picks up a low impedance earth shield ground by connecting the module′s shield to the backplane′s earth shield ground. Terminal Numbering and Output Connections The following figure shows typical circuit connections for power applications of the B842–008 module.
