4.1 tension control in normal operation up ray machine reverse imposed on the constant torque, drag tension round forward, Line up at the plane and tension between rounds (plus heat furnace) on the wire by a certain tension, help raise steel wire mechanical properties. 4.2 line of statistics in some projects, the length of a roll of steel have more stringent requirements According to production set for the long lines, following formula ~ 50 ~ Wk a round r Tension Tension round will speed encoder feedback signals to the converter Application of DCS 400. Application of DCS 400 from the output signal to a PLC analog input module, Tension was after round of the tension wheel speed. At circle time interrupted by OB35 have. The method has the advantages of no additional hardware to measure the long lines, high accuracy. 4.3 speed control speed control essentially need to consider the following points : on or after shearing, Low-speed increased from the normal operation of the high speed; normal or shear between stands by the low speed to high speed. Admission ray machine speed control. In order to ensure the appearance of product formation, standardized requirements wire from the inside out would circle out, Circle Drive to remain in the frame. When the tension wheel rotational speed, or operation of the system will speed line, for the resumption of wire diameter, the ever changing needs of the resumption ray machine speed. 4.4 temperature control stability of processed, the outlet temperature wire directly determines the products, technical indicators, Therefore the heating temperature control of the entire system design focus. (1) feedforward control as a result of system operation speed of the line often changes when the furnace output unchanged. Wire up the furnace temperature change. To maintain the wire outlet temperature constant, the introduction of static feedforward control. Algorithm are as follows : static energy balance equation (t0) At=CKv (t0) At[T. (T0) Ti (t0)] - P (t0) --t0 moment IF furnace output Diao -- efficiency C - - steel heat capacity and K unit length of the wire quality (t0) -- ? 0 times the speed steel Ti (t 0) -- 0 ? moment VI wire furnace temperature T. (T0) -- ? 0 moment Wire outlet temperature static feedforward control equation P (t) = CK (t) Copper ( t) Ti (t)] (2) feedback control due to the following reasons just use (to No. 53) PLC-based automatic harmonic analysis of leak detection devices' electrical technology in the magazine "2003, a voltage integrated circuits and devices of the power supply voltage, The power supply module designed for symmetric output 15V DC power supply. ± In addition, the devices are under some circumstances to take a corresponding anti-interference and protection measures. 3.3 device software installation software language used ladder, by the programming device or computer via cable transmission PLC debugging and run. When the need to amend the procedure, only by the programmer to amend some modifications, can be installed by the new requirements, procedures modifying and debugging simple and flexible, is very conducive to the technical staff in the grassroots. 4 Conclusion Practice has proved that the device is common, 6~63kV apply to the neutral mode of operation of the system; alignment is accurate, reliable and strong anti-interference; program design and modify simple; use all modules, the structure design, easy installation, very suitable for primary use of technology, popular corporate users welcome.
开关电源，翻译一下（要英语的，火星语就不必了），多多关谢了。。
锳UTO表示所选回路处于自动控制和模块这两个位置外，其它I、OP+I控制.xB.xTOFF，文件格式PDF、AdobeAcrobatHTML版电源模块和编程设备组成.电源模块按钮INVIINVDNEGINEGDNEGRINV_IINVNOQ.SI.Q.S图，文件格式PDF、AdobeAcrobatHTML版.什么是一个参数能在页中出现表示它是有效的.在特殊的配置或仪表状态下有些在可能和模块这两个位置外，其它I、OP+I控制.。二、提货单里的Ref. no.和Inv. no.什么意思请翻译成 INV.NO=invoicenumber商业发票号P/INO=proformainvoicenumber形式发票号形式发票（ProformaInvoice）是卖方应买方的要求，将拟报价出售货物的名称、规格、单价等开立一种非正式的发票，以供买方作为申请进口许可证或申请外汇额度的证件，也作为买方向银行申请向卖方支付货款，开立信用证等的依据。形式发票跟商业发票差不多，只是这个不是正式的，它只负责跟客户提供货物的信息，数量，单价等等。三、隧道超欠挖4800计算器的程序谁有 请翻译成中文。十分感谢。就是DeliveryReferenceNumber发货参考号，或简单一点，发货号invno.invoiceNumber发票号，这是什么语言？这是西班牙语您的名字可以不必须包含无效字符参考资料fanyi.yahoo、translate_txt，S.B.NO.是什么意思呢?
The switching power supply has now become a mainstream product of the power supply. At present, the switching power supply is entering a new period of a rapidly developing, and new technologies continue to emerge. Chip switching power supply IC has a highly integrated, cost-effective, the most simple peripheral circuits, the best performance, a high-efficiency frequency transformer-isolated switching power supply, etc.. It constitutes a switching power supply, power efficiency, size and weight is greatly reduced. dpa424p pi (power integration gmbh) Company, a highly integrated dc / dc power supply control chip. Ethernet power referred to poe (power over the ethernet), it is only through an Ethernet cable to provide users with the power of data and power supply.
