【正文】 ........................ 30 開關(guān)量輸出 ............................................................................................ 31 模擬量輸入 ............................................................................................ 32 目錄 廣東明陽龍源電力電子有限公司 III 模擬量輸出 ............................................................................................ 33 監(jiān)控和顯示功能 ............................................................................................... 34 通訊功能 ......................................................................................................... 34 工頻電網(wǎng)與變頻器間的切換 ............................................................................. 34 第五章 產(chǎn)品特點 .......................................................................................................... 36 整體方案的優(yōu)勢 ............................................................................................... 36 功率模塊柜 ............................................................................................ 36 濾網(wǎng)設(shè)計改進 ......................................................................................... 36 冷卻系統(tǒng)冗余配置 .................................................................................. 37 變頻柜整體設(shè)計 ..................................................................................... 37 功率模塊的優(yōu)勢 ............................................................................................... 37 性能特點 ......................................................................................................... 39 第六章 工作原 理 .......................................................................................................... 41 簡介 ................................................................................................................ 41 主電路 ............................................................................................................. 41 移相變壓器 ............................................................................................ 42 功率模塊 ................................................................................................ 43 控制系統(tǒng) ......................................................................................................... 45 主控系統(tǒng) ................................................................................................ 45 電氣控制系統(tǒng) ......................................................................................... 46 第七章 現(xiàn)場調(diào)試規(guī)范 ................................................................................................... 47 范圍 ................................................................................................................ 47 術(shù)語 ................................................................................................................ 47 調(diào)試規(guī)范 ......................................................................................................... 47 調(diào)試內(nèi)容 ................................................................................................ 47 控制柜送電檢查 ..................................................................................... 48 模擬調(diào)試 ................................................................................................ 49 分體調(diào)試 ................................................................................................ 49 功率模塊串聯(lián)調(diào)試 .................................................................................. 51 MLVERTD 系列變頻器用戶手冊 廣東明陽龍源明陽電力電子有限公司 IV 帶電機空載調(diào)試 ..................................................................................... 52 電機帶負載調(diào)試 ..................................................................................... 54 投運調(diào)試 ............................................................................................... 55 第八章 維護規(guī)程 .......................................................................................................... 57 安全信息 ......................................................................................................... 57 維護規(guī)程 ......................................................................................................... 58 變頻器投運前期 ..................................................................................... 58 變頻器運行中 ........................................................................................ 58 變頻器模塊柜中模塊指示燈說明 ............................................................ 59 第九章 故障處理 .......................................................................................................... 61 故障分類 ......................................................................................................... 61 故障說明 ......................................................................................................... 64 主控制電源故障 ..................................................................................... 64 備用控制電源故障 ................................................................................. 65 冷卻風扇電源故障 ................................................................................. 65 門開關(guān)故障 ............................................................................................ 65 變壓器溫度過高故障和變壓器溫度超高故障 ........................................... 65 主板與 PLC 通信故障 ............................................................................. 66 模擬信號斷線 ........................................................................................ 66 模塊 B 故障 ........................................................................................... 66 控制電源重故障 ..................................................................................... 67 高壓掉電 .............................................................................................. 67 系統(tǒng)過流 .............................................................................................. 67 系統(tǒng)過載 ...................................