140CRP93200 Quantum

在診斷輸入/輸岀故障時(shí)，佳方法是區(qū)分究竟是模塊自身的問(wèn)題，還是現(xiàn)場(chǎng)連接上的問(wèn)題。如果有電源指示器和邏輯指示器，模塊故障易于發(fā)現(xiàn)。通常，先是更換模塊，或測(cè)量輸入或輸出端子板兩端電壓測(cè)量值正確，模塊不響應(yīng)，則應(yīng)更換模塊。若更換后仍無(wú)效，則可能是現(xiàn)場(chǎng)連接出問(wèn)題了。
輸出設(shè)備截止，輸出端間電壓達(dá)到某一預(yù)定值，就表明現(xiàn)場(chǎng)連線有誤。若輸出器受激勵(lì)，且LED指示器不亮則應(yīng)替換模塊。如果不能從Ⅰ/O模塊中查出問(wèn)題，則應(yīng)檢査模塊接插件是否接觸不良或未對(duì)準(zhǔn)。

后，檢査接插件端子有無(wú)斷線，模塊端子上有無(wú)虛焊點(diǎn)ED狀態(tài)指示器能提供許多關(guān)于現(xiàn)場(chǎng)設(shè)備、連接和I/O模塊的信息。大部分輸入/輸出模塊至少有一個(gè)指示器。輸入模塊常設(shè)電源指示器，輸出模塊則常設(shè)一個(gè)邏輯指示器。

MOOG SERVO VALVE #760-101A HYDRAULIC REMAN 

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