控制裝置停車裝置-中英對(duì)照

1) 停車裝置
正常停車—每個(gè)機(jī)器都必須裝有一個(gè)控制裝置，以便機(jī)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(gè)工作站都必須設(shè)有控制裝置，根據(jù)危險(xiǎn)的類型，終止部分或者全部的運(yùn)動(dòng)機(jī)件，這樣機(jī)器可以處于安全狀態(tài)。機(jī)器的停車控制裝置必須優(yōu)先于啟動(dòng)控制裝置。
一旦機(jī)器或者其危險(xiǎn)部件已經(jīng)停車，有關(guān)驅(qū)動(dòng)器的能源供應(yīng)必須進(jìn)行切斷。
緊急停車---每個(gè)機(jī)器都必須設(shè)有一個(gè)或多個(gè)緊急停車裝置，用于避開(kāi)當(dāng)前或者逼近的危險(xiǎn)。所有的緊急停機(jī)裝置必須通過(guò)硬連線控制。如有必要，并且有明確規(guī)定，設(shè)備必須對(duì)能量隔離操作采用標(biāo)準(zhǔn)的關(guān)閉程序。
例外； 手提式的便攜機(jī)器和手引導(dǎo)式機(jī)器不包括在這類要求之中�，斒�，必須通過(guò)實(shí)際情況，逐件評(píng)價(jià)緊急停機(jī)裝置，確保裝置沒(méi)有減緩危險(xiǎn)控制，不論是不能縮短機(jī)器停止的時(shí)間，或者不能采取特別的措施停止對(duì)處理危險(xiǎn)進(jìn)行處理。
緊急停機(jī)裝置必須---
• 有清晰視野，清楚方便識(shí)別，以便迅速進(jìn)行控制，對(duì)工廠的設(shè)施形成統(tǒng)一的標(biāo)準(zhǔn)。
• 盡快停止危險(xiǎn)的進(jìn)程，阻止其它危險(xiǎn)的發(fā)生。
• 如果有必要，采用或者允許一定安全保護(hù)措施。
• 通過(guò)切斷而不是啟動(dòng)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(dòng)狀態(tài)，并且允許通過(guò)適當(dāng)?shù)牟僮鬟M(jìn)行解除。機(jī)械解除控制不允許重新啟動(dòng)整個(gè)機(jī)器，只允許重新啟動(dòng)。此外，在機(jī)器處于運(yùn)行時(shí)，緊急停車控制器不可引發(fā)停止的功能。

綜合安裝
當(dāng)機(jī)器或者機(jī)器零件用于同類工作范圍，制造商必須設(shè)計(jì)并建造機(jī)器的停車控制裝置，包括緊急停車，如果繼續(xù)運(yùn)行存在危險(xiǎn)，停止上游和/或下游機(jī)器運(yùn)行，同時(shí)停止全部設(shè)備的運(yùn)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.