用可编程控制器实现凿井绞车的同步控制
To Achieve Synchronous Control of Sinking Hoist by Programmable Controller
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摘要: 利用可编程控制器作为主控制器，可对多至４台凿井绞车进行同步控制，从而确保立井施工吊盘升降的安全。Abstract: Programmable Controller is used as main controller in synchronously controlling up to 4 sinking hoists,which ensures the safety of sinking stage’s elevation and subsidence in vertical shaft construction.
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