MVME714 PMC243MOT-R40M MCP750 MVME142-012 MVME142-012A MVME147-010A MVME147-11 MVME2x MVME3x控制卡件MC68020 MVME1 MC68030 MVME143MC68030 MVME162-032 MVME162-033 MVME162-040 MVME162-041 MVME162-042 MVME162-043 MVME162-211 MVME162-213
將公用系統(tǒng)和1#爐的控制器(型號為CP60)升級為新控制器(型號為FCP270)织中，控制器不再集中布置，升級后的控制器隨卡件柜布置。
3僻焚、對現(xiàn)有公用系統(tǒng)和#1爐及1#機(jī)卡件柜利舊改造叔锐，卡件底板更換為最新的FBM底板誉察，原有卡件保留域帐。
4痒谴、將工作站全部升級為最新的工作站(型號為H92)稚铣，操作員站和工程師站性能將大大提升箱叁。
5、公用系統(tǒng)和1#爐及1#機(jī)升級完畢后惕医，可根據(jù)要求啟動公用系統(tǒng)和1#爐及1#機(jī)耕漱，進(jìn)行正常生產(chǎn)運(yùn)行，同時對2#爐抬伺、3#爐和2#機(jī)進(jìn)行升級改造螟够，這兩個爐在升級后逐一接入新的Mesh網(wǎng)絡(luò)系統(tǒng)，既保證生產(chǎn)安全峡钓，又使得現(xiàn)場停機(jī)時間不會太長妓笙，保證生產(chǎn)連續(xù)。
6能岩、控制系統(tǒng)主要施工步驟
軟件部分：
(1) 現(xiàn)有系統(tǒng)軟件備份寞宫，包括組態(tài)、畫面捧灰、系統(tǒng)定義盤等;
(2) 根據(jù)新的系統(tǒng)定義淆九，制作系統(tǒng)定義盤，并使用新的定義盤進(jìn)行工作站安裝;
(3) 現(xiàn)有Unix平臺下畫面和邏輯轉(zhuǎn)換到Windows平臺;
(4) 將系統(tǒng)原有組態(tài)以及功能恢復(fù)至Windows平臺后進(jìn)行調(diào)試以使系統(tǒng)原有功能在windows平臺完整保留并且運(yùn)行正常;
硬件部分：
(1)新機(jī)柜安裝就位;
(2)電纜光纜鋪設(shè)毛俏，光纜熔接;
(3)新控制器(型號為FCP270)安裝;
(4)原有卡件柜改裝舊底板拆除炭庙，新底板安裝，卡件恢復(fù);
(5)系統(tǒng)恢復(fù)煌寇、上電焕蹄，檢測控制器、工作站及I/O卡件狀態(tài)阀溶，測試DCS各部件工作情況腻脏。
五鸦泳、結(jié)論
通過本次的升級改造，使本廠的DCS系統(tǒng)控制器(型號為CP60)升級為新控制器(型號為FCP270)永品，控制器不再集中布置做鹰。工作站全部升級為最新的工作站(型號為H92)，操作員站和工程師站性能將大大提升鼎姐。解決了原來卡件停產(chǎn)造成備件采購困難的問題钾麸，同時通過DCS整體升級改造增加了設(shè)備的穩(wěn)定性，為長時間的穩(wěn)定連續(xù)生產(chǎn)打下良好的基礎(chǔ)炕桨。groups of triggers are respectively taken from the synchronous transformer corresponding to the rectifier transformer.
Fig. 2 Schematic diagram of DC servo system of industrial robot joint
When the system is set to zero, the speed regulator ASR and current regulator ACR are locked to zero by the zero speed blocking signal. At this time, the system mainly consists of a constant current system with cross feedback composed of a loop regulator arr. Due to the influence of the given circulating current, the two groups of thyristors are in the rectification state, the output voltage is equal and the polarity is opposite, the armature voltage of the DC motor is zero, the motor stops, and the output current flows through the two groups of thyristors to form circulating current. The circulating current should not be too large, which is generally limited to about 5% of the rated current of the motor. When starting in the forward direction, with the increase of speed
