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之前，分享過一些雙手啟動(dòng)的例子，最近看到一種方法，展示出來供參考。

                          X35                                                            X36
---------------------▏      ▏-----------------------------------------------▏       ▏--------------------------------------------------------[PLS    M12   ]
                    雙手啟動(dòng)（左）                                            雙手啟動(dòng)（右）
                                      M12                                    C6
-------------------------------▏       ▏---------------------------▏  /    ▏-----------------------------------------------------------------------（ Y18    ）  
                                 雙手啟動(dòng)         ▏               雙手啟動(dòng)計(jì)數(shù)                                                                                       輸出
                                                        ▏
                             Y18                     ▏
-------------------------▏       ▏-------------
                             自鎖
                                      M12                                        
-------------------------------▏       ▏--------------------------------------------------------------------------------------------------------------(C6    K2)
                                  雙手啟動(dòng)                                                                                                                                雙手啟動(dòng)計(jì)數(shù)

                                      C6
-------------------------------▏       ▏---------------------------------------------------------------------------------------------------------------(T8  K15)
                                   雙手啟動(dòng)計(jì)數(shù)                                                                                                                     雙手啟動(dòng)兩次開始計(jì)時(shí)

                                      T8
------------------------------▏        ▏---------------------------------------------------------------------------------------------------------------[RST  C6 ]
                                   時(shí)間到閉合                                                                                                                                 C6復(fù)位

以上，僅供參考。

強(qiáng)烈建議如果有安全上考量，直接使用雙手啟動(dòng)的模組。
根據(jù)我以前在沖床的經(jīng)驗(yàn)，客戶會(huì)希望可以提供相關(guān)的證明文件，
用標(biāo)準(zhǔn)的模組或安全PLC，這樣在有爭(zhēng)議時(shí)，可有效的保護(hù)自己及公司。

請(qǐng)參考:
https://www.pilz.com/tw-TW/eshop/0010000200700380G8/Two-hand-monitoring

https://www.bannerengineering.com/tw/zh/products/machine-safety/two-hand-controls.html

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