【文章內(nèi)容簡介】 op pushbutton, a lockable step switch is installed at the local control box (HvO) in the machine section and the hydraulic station”.This switch allows to switch off the whole moulding plant in case of occurring repair works (function as emergencystop).If a repair switch has been actuated in any part of the moulding plant, this one has to be unlocked first for restart of the plant and additionally the plete emergencystop equipment has to be acknowledged centrally by a keyoperated switch at HvO 2.除了現(xiàn)有的緊急停機開關(guān)之外，在設(shè)備和液壓站就地控制柜（HvO）上還裝有可以加鎖的選擇開關(guān)。在進行維修工作時這個開關(guān)可以切斷整個的造型線（作用就像緊急停機開關(guān)）。假如在造型線的任何地方維修開關(guān)工作的話，在重新啟動造型線時這個開關(guān)必須首先打開，此外整個的緊急停機裝置必須由HvO 2上的鑰匙開關(guān)集中進行確認。Description of functions:a) Offswitching of the hydraulic pumpsb) Relieving of the storage basinc) Offswitching of the supply voltage for the digital output cards(except the pilot lamps)As the supply voltage for the digital input cards holds on, the necessary messages can also be displayed by the signalling system.功能描述a) 切斷液壓油泵b) 卸荷c) 切斷數(shù)字輸出卡上的電源（除了指示燈之外）當保留數(shù)字輸入卡上的電源時，必要的信息還可以在信號系統(tǒng)上顯示。 Alarm equipment報警設(shè)施The moulding plants are equipped with an optical and an acoustic signal as starting alarm.When the entire automatics is started, an acoustic alarm signal (hooter or horn), which is limited in time, sounds.Allround lights indicate in addition the start of the automatic operation.The orange pilot lamp on each manual local control box (HvO) is lighting and indicates the automatic operation.造型線配置了聲光信號作為設(shè)備啟動的警報。當全線自動運行啟動時由時間控制的報警信號（汽笛或喇叭）就會報警。另外旋轉(zhuǎn)燈光表示設(shè)備在自動模式下運行。在每一個手動控制柜（HvO）上面的黃色指示燈一直亮著，表示設(shè)備正在自動模式下運行。 Starting alarm啟動警報In case the moulding plant is started after a longer processrelated stoppage, . core setter stop, or started from basic position or automatic mode on, there is an automatic starting alarm. It is also possible to make a starting alarm sound manually by actuating one of the function keys at the operator’s panel of local control box 2.假如造型線由于工藝的原因停頓了較長時間需要重新啟動，例如，下芯暫停，或從原始位置啟動，或“自動模式啟動”，造型線會自動啟動報警。也可以由操作人員在就地控制柜2按下功能鍵發(fā)出啟動報警 Safety equipment (refer to )安全設(shè)備 (參閱 ) Structure of the switch and control plant控制開關(guān)和控制柜結(jié)構(gòu)The automatic green sand moulding plant is equipped with a freely programmable control which ensures that the operation is achieved step by step.濕砂造型自動線配備可編程序控制用來保證自動線可以一步一步地進行運行。Type S7Make Siemens型號 S7制造 西門子The control prises the following subassemblies: Power cabinet Electronic cabinet Local hand control boxes (HvO)The plete control has got a retentivememory version, . after a power failure or a stop of the automatics and an emergencystop, the plant logically continues its run after having restarted it.控制系統(tǒng)包含以下部件： 電源柜 電氣柜 就地手動控制箱（HvO）整個的控制系統(tǒng)有很強的記憶功能，例如在斷電或自動和緊急停機后，設(shè)備在重新啟動后能夠繼續(xù)運轉(zhuǎn)。The electric control has an automatic mode, which ensures that the operation is achieved step by step, a locked manual mode and a nonlocked settingup mode (inching mode). In automatic and manual mode safety interlocks are programmed directly before the outputs. These are only jumpered by a sealin after pletion of the movement.This measure serves to secure the drives against an unintended leaving of the end position.The plete electric and electronic control is installed in dusttight closed switch cabinets.電氣控制系統(tǒng)具有能保證設(shè)備能夠一步一步地進行運行的自動模式，鎖定的手動模式和為鎖定的調(diào)整模式（緩慢移動模式）。在自動和手動模式里，安全連鎖在輸出前就已經(jīng)直接編寫在程序里。在整個動作完成之后這些程序僅僅隱藏連接。這個方法用來避免設(shè)備預(yù)想不到地從最終位置自行偏移。整個的電氣和電子控制系統(tǒng)都安裝在防塵的密閉開關(guān)柜里。 Power cabinet電源柜At this cabinet the master switch (lockable) for the input to the network of the whole moulding plant (480 V / 50 Hz).在電源柜里，主開關(guān)（可以鎖定）用于整個造型線電源的輸入（480V/50Hz）。Furthermore the cabinet contains are the following ponents and subassemblies:電源柜還包括以下的元器件和部件： power drives voltage supply and distribution 120 VAC voltage generation and distribution 24 VDC 配電部分 120 VAC 電源和分配 24 VDC電源和分配Furthermore the power cabinet contains the safety block for the emergency chain.此外，電源柜還包括用于緊急鏈的安全塊。Input field with master switch (example)帶主開關(guān)的輸入部分（實例） Electronic cabinet電氣柜This switch cabinet prises the central controller of the freely programmable control (CPU = Central Processing Unit) as well as the switching devices for the safety equipment.電氣柜包括可編程序控制的中央控制器（CPU）以及安全設(shè)施的開關(guān)裝置。 Local hand control box就地手動控制柜For the control system, the moulding plants are subdivided in individual plant sections, . moulding line, pouring line, cooling house, shakeout line, etc.There are local control boxes in these sections not far away and of easy access by which the plant parts can be moved in manual or setup mode and/or repair mode.There is an operator39。s panel in the front of the specific hand control box in order to operate single plant parts / movements (instead of pushbuttons) in order to operate or enter processing parameters for positional checkback signal of drives. listing of the basic position for this plant section考慮到控制系統(tǒng)的問題，造型線分成若干個獨立的部分，例如造型線、澆鑄線、冷卻罩、震動落砂線等等。在這些設(shè)備附近都配置了容易操作的就地控制柜。通過這些控制柜設(shè)備可以進行手動模式、調(diào)整模式和/或維修模式的移動。在手動控制柜的前面配有操作屏， 為了操作單機/移動（代替按鈕） 為了操作或輸入工藝參數(shù) 定位信號檢查 設(shè)備原始位置列表Besides the operator39。s panel, the following signal and actuating elements are situated in the front of the hand control box:1) Emergencystop pushbutton with its pilot lamp (red)2) Selector switch automatics hand3) Keyoperated switch settingup mode除了操作者的面板之外，在手動控制柜的前面還有以下的信號和開關(guān)按鈕：1) 帶有（紅色）指示燈的緊急停機按鈕2) 自動手動旋轉(zhuǎn)開關(guān)3) 鑰匙操作的調(diào)整模式開關(guān)Pilot lamp (yellow) indicating whether this plant zone is in automatic mode.Pilot lamp (blue) indicating whether this plant zone is in basic position.黃色指示燈表示設(shè)備處于自動模式；蘭色指示燈表示設(shè)備處于原始位置；1. Keyoperated switch settingup mode2. Press button autom. start for this plant section3. Mode selector hand automatics4. Mushroom button section switchoff5. Pilot lamp emergencystop6. Mushroom button eme