控制裝置停車裝置-中英對照

1) 停車裝置
正常停車—每個機器都必須裝有一個控制裝置，以便機器可能按照一定的控制序列執(zhí)行安全的完全停車控制。
每個工作站都必須設(shè)有控制裝置，根據(jù)危險的類型，終止部分或者全部的運動機件，這樣機器可以處于安全狀態(tài)。機器的停車控制裝置必須優(yōu)先于啟動控制裝置。
一旦機器或者其危險部件已經(jīng)停車，有關(guān)驅(qū)動器的能源供應必須進行切斷。
緊急停車---每個機器都必須設(shè)有一個或多個緊急停車裝置，用于避開當前或者逼近的危險。所有的緊急停機裝置必須通過硬連線控制。如有必要，并且有明確規(guī)定，設(shè)備必須對能量隔離操作采用標準的關(guān)閉程序。
例外； 手提式的便攜機器和手引導式機器不包括在這類要求之中。瑪氏，必須通過實際情況，逐件評價緊急停機裝置，確保裝置沒有減緩危險控制，不論是不能縮短機器停止的時間，或者不能采取特別的措施停止對處理危險進行處理。
緊急停機裝置必須---
• 有清晰視野，清楚方便識別，以便迅速進行控制，對工廠的設(shè)施形成統(tǒng)一的標準。
• 盡快停止危險的進程，阻止其它危險的發(fā)生。
• 如果有必要，采用或者允許一定安全保護措施。
• 通過切斷而不是啟動控制裝置執(zhí)行停車功能 。
注意； 緊急停車控制器必須保持啟動狀態(tài)，并且允許通過適當?shù)牟僮鬟M行解除。機械解除控制不允許重新啟動整個機器，只允許重新啟動。此外，在機器處于運行時，緊急停車控制器不可引發(fā)停止的功能。

綜合安裝
當機器或者機器零件用于同類工作范圍，制造商必須設(shè)計并建造機器的停車控制裝置，包括緊急停車，如果繼續(xù)運行存在危險，停止上游和/或下游機器運行，同時停止全部設(shè)備的運行。
i)方式選擇
控制模式選擇方式必須優(yōu)先于全部其他的控制系統(tǒng)
Stop Circuits
Interlocks and trip devices are in some cases connected to the emergency stop circuits. Even when they are not, emergency stop circuits and normal stop circuits are an integral part of the overall safety circuitry.
In addition to a control stop, each machine or system must incorporate an emergency stop circuit with at least one manually operated emergency stop device. An emergency stop function is not required where it would duplicate the normal stop function. Actuating the emergency stop should
not interfere with any braking system fitted to the machine to stop it more rapidly.
Design should ensure that all machine motions stopped by an emergency stop function or other stop function can be restarted only by deliberate operator action. Resetting the emergency stop function or other stop function must not restart any part of the machine. All stop functions must
be initiated by de-energizing, not energizing control devices.
 
Emergency Stop Circuits
E-stop (emergency stop) circuits affect a line or area. An e-stop is a red push/pull button that may illuminates when pressed and meets local requirements for color and labeling. Pressing the button removes power from all actuating output devices. Actuating devices include motors and
solenoids. Power should be maintained to outputs for indicators and inputs such as sensors during an e-stop condition. Disable the output power until all e-stop buttons are pulled out and an e-stop circuit reset is pressed. The e-stop must shut off power to all devices within control of its defined line or area. A line or area can have multiple stop buttons, with at least one reset button centrally located (usually near the central operator interface terminal or push-button station).
•  E-stop buttons must be placed at all operator stations. The Company places no limit on the number of e-stop buttons that can be installed.
•  Place at least one e-stop reset button per line or area, located at a central location such as a control room or operator station.
•  An e-stop reset can be generated through the PLC from a Wonderware button. In this configuration, the output ties to a relay and the relay contact parallels the reset button.
o  The PLC must have logic that holds the e-stop reset output for one second for each instance of an operator reset.