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(1)由于變頻器產生高次諧波，會對通訊產生干擾，同時由于plc采集模擬信號，要進行a/d和d/a轉換處理，在此過程中，容易受到變頻器高次諧波的影響而失真。因此，必須將變頻器零地分接且加裝液波裝置，對plc用隔離變壓器供電，將plc安裝于距離變頻器較遠的位置上。
廈門岳航計算機工程有限公司
聯系人：李素云
企業QQ：2851195446，2851195466
手機：18965423501
座機：0592-5165501
(2)本系統所需液位、壓力等模擬信號均采至鍋爐原有控制系統，為了不影響原控制系統的安全性與完整性，應將原有模擬信號通過隔離分路端子分路后采用。
(3)鍋爐給水是鍋爐運行過程中至關重要的環節之一，其運行的穩定性與可靠性直接關系到整個鍋爐系統乃至整個企業生產運行的穩定與安全。因此，一旦變頻器出現故障而停車后，系統可自動切換至原有工頻控制系統而不影響生產，這一聯鎖措施至關重要。
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