【文章內容簡介】 mm cable with twisted pair cores for the load cell signals.接線盒到張力測量裝置的信號和勵磁電纜必須分開，例如：一根22。 Cable for synchronization of two of more tension electronics must be screened or a twisted pair.兩臺或兩臺以上的張力測量裝置的同步連接電纜必須屏蔽或者雙絞。 The signal cable between the tension electronics and instruments, or process equipment, must be a screened mm cable.。 Cable screens must be connected to the copper earth bar. The screen connection maximum length is 50 mm.電纜屏蔽線必須連接銅制接地棒，屏蔽接線處最大長度為50mm。 The protective earth conductor of the ining mains supply must be connected to the copper earth bar in the cubicle.主回路進線電纜的保護地線必須連接在配電室的銅制接地線上。 Interference (干擾)For immunity to interference, the load cell cables should be separated as far as possible from noisy power supply cables, A minimum distance of m (12 inches) is remended. Where the measuring system cables meet noisy cables, they must cross at right angles.出于抗干擾考慮，壓頭的電纜要盡可能的遠離電源電纜，（12英寸）。在兩根電纜相遇的地方，必須使它們交叉。 Synchronization (同步)Synchronization is not required for the wall mounted IP 65version (NEMA 4) of the tension electronics.對于有隔離的IP 65version (NEMA 4)壓力電子儀器同步是不必要的If two or more IP 20version (unsealed) tension electronics are mounted in the same cabinet they must be synchronized.如果兩個或更多的IP 20version (unsealed)壓力電子儀器安裝在同一個電器柜里那么它們必須同步。Synchronization is done by interconnecting the “SYNC” terminals, screw terminal X1:14, of all the units and interconnecting screw terminal X:15 of all units. A twisted pair cable or a screened cable must be used.同步是由內部SYNC端子完成的，用一根雙絞或屏蔽電纜把所有裝置的X1:14和X1:15分別連在一起。If one unit is turned off or removed the remaining units are still synchronized.如果一套裝置斷電或拆離，剩下的裝置任然保持同步。 Mounting the Tension Electronics PFEA111/112(安裝張力測量裝置) IP 65version (NEMA 4) The electronic unit is delivered in an enclosure intended for wall mounting.張力測量裝置交付時是設計成墻掛式的。 When choosing a place for installation, check that there will be space to open the enclosure lid fully. Also check that there is enough working space in front of the enclosure.在選擇安裝地點時，需留出打開蓋子的空間，同時還得檢查裝置前面是否有足夠的操作空間。 The enclosure is fitted with six cable glands. 隔離柵配有6個走線密封管Inches (英寸) for cable 走線孔 mounting holes 安裝孔Connect the cables to terminals according cable diagrams in Appendix (B, C, D, or E) depending on installed load type.參照附錄 (B, C, D, or E) 中接線圖連接電纜到接線端子NOTE (注意)Do not connect solid conductors to terminals. Do not crimp pins to stranded cores.固體導體不直接連接在接線端子上，不要卷折插腳成多股芯。NOTE (注意)The ining mains voltage must be provided with fuses and a means of disconnection outside the tension electronics.輸入電源必須接有保險絲和在壓力測量器外的空開。 IP 20version (Unsealed)Connect the cables to terminals according cable diagrams in Appendix (B, C, D, or E) depending on installed load cell type.連接端子的電纜可依據已安裝的壓頭選擇，見附錄B,C,D或ENOTE (注意)Do not connect solid conductors to terminals. Do not crimp pins to stranded cores.固體導體不直接連接在接線端子上，不要卷折插腳成多股芯。 Earthing (接地) For trouble free operation, the earthing must be carried out carefully. Note the following: If the free (unscreened) length exceeds (4in) the individual pairs of power and signal conductors must be twisted separately. The external protective earth (PE) cable must be attached to one of the earth bar screw clamps. All the cable screens have to be connected to the earth bar and the length of the screen connection must be less than 50mm (2 in).接地必須小心謹慎，按照下列操作可避免麻煩：，信號電纜和電源電纜需分別雙絞。外接保護接地電纜必須和接地排緊密接觸。所有的電纜屏蔽必須接接地排且長度不可超過50毫米NOTE The cable screens must be earthed at one end only. Since the signal earth of the measurement system is connected to the chassis earth of the tension electronics, the input of a superior system connected to the control system must not be earthed. The best ways of interconnecting the measurement system and a superior system to achieve optimal function are shown in Figure 26 and Figure 27.電纜屏蔽必須接通大地。由于本張力測量裝置的信號地是通過外殼接入大地的，所以上級系統的輸入連接到控制系統必須接地。測量儀器和上級系統的內部連接的最佳方案的優(yōu)化功能見圖26和圖27。 Connecting the Load CellsInformation for connecting the load cells is given in the appendix for each load cell type, see table below.每種壓頭連接信息詳見以下表格 Type of load cell (測壓元件類型) Cable diagrams in Appendix (附錄中的接線圖) Connecting Optional Units (套管選擇) Insulation Amplifier PXUB 201 (only for the IP 20version) (隔離放大器)Insulation amplifier PXUB 201 is used when galvanic insulation between input and output, or between power supply and input/output, is required. See Section Insulation Amplifier PXUB201.當輸入和輸出或電源盒輸入輸出需要絕緣就需要使用隔離放大器。：隔離放大器PXUB201。Insulation amplifier PXUB 201 is intended to be installed on a DINrail. The PXUB 201 is connected by screw terminals.PXUB201隔離放大器只能用螺絲安裝在DIN導軌上。PXUB 201 is normally supplied from the same +24VDC supply that supplies the tension electronics.PXUB 201標準狀態(tài)是使用24VDC，通常是由壓力電子儀器供給的。If PXUB 201 is mounted close to the terminal group, it is not necessary for the cable between the tension electronics and PXUB 201 to be screened.如果PXUB201隔離放大器緊貼端子排安裝，那么連接PXUB 201和張力測試裝置的電纜不必使用屏蔽。Figure 28 Typical Connection Amplifier PXUB 201圖28 典型的放大器PXUB 201連接線路 Power Supply Unit (電源單元)If no 24V is available, the power supply units SD 822 and SD 823 can be used as power supply for the IP 20versions.如果24V可以得到，電源單元SD 822和SD 823（對于IP 20versions而言）可以用作電源。The main supply voltage for all the three power supply units are:主要電源電壓是為了第3電源單元 (Mains voltage selection switch in position 115)主要電壓選擇開關在115的位置。Chapter 3 Commissioning （調試） About this Chapter（簡介） This chapter contains necessary information for missioning your web Tension System. It is assumed that the Web Tension System has been installed according to the instructions given in Chapter 2 Installation and Appendix (B, C, D or E) depending on installed load cell type。本章包含了張力測量系統帶幅面材料負載調試必須的信息。確認張力測量系統已經按照第二章所要求按章就位，并且壓頭也須按照附錄（B、C、D、E）安裝就位。You must know the following data