罗克韦尔1756-A7/B进口欧美工控DCS/PLC系统1756系列电源模块

罗克韦尔1756-A7/B进口欧美工控DCS/PLC系统1756系列电源模块

罗克韦尔1756-A7/B进口欧美工控DCS/PLC系统1756系列电源模块

Allen-Bradley/Rockwell Automation 1756-A7 机箱是一款小巧紧凑的机箱，专为 Allen-Bradley ControlLogix 系统而设计。该机箱是可用的最小的 ControlLogix 机箱之一，顶部只有 2 个安装卡舌，底部只有 2 个安装卡舌。

1756-A7 机箱可以安装或不安装2个SEM螺钉，但如果安装时没有SEM螺钉，那么除了2个平垫圈和2个分锁垫圈外，还需要2个星垫圈。此外，如果此机箱没有 SEM 螺钉，则需要 4 个十字螺钉，但如果与 SEM 螺钉一起使用，则只需要 2 个十字螺钉。1756-A7 机箱是开放式设备，没有用于保护的外壳。

Allen-Bradley 1756-A7是来自ControlLogix可编程自动化控制器（PAC）平台的七（7）插槽机箱。该硬件是将 ControlLogix 控制系统构建为机箱的重要组件，例如 1756-A7 提供背板连接，并允许将模块安装在提供的模块插入插槽中。

罗克韦尔1756-A7/B进口欧美工控DCS/PLC系统1756系列电源模块

The Allen-Bradley/Rockwell Automation 1756-A7 case is a small, compact case designed for use with Allen-Bradley ControlLogix systems. The case is one of the smallest ControlLogix cases available, with only 2 mounting tabs on the top and 2 mounting tabs on the bottom.

The 1756-A7 case can be installed with or without 2 SEM screws, but if it is installed without SEM screws, then 2 star washers are required in addition to 2 flat washers and 2 split lock washers. In addition, if this case does not have SEM screws, four Phillips screws are required, but if used with SEM screws, only two Phillips screws are required. The 1756-A7 chassis is an open device with no protective housing.

The Allen-Bradley 1756-A7 is a seven (7) slot chassis from the ControlLogix Programmable Automation Controller (PAC) platform. This hardware is an important component in building the ControlLogix control system as a chassis, such as the 1756-A7 which provides backplane connections and allows the module to be installed in the provided module slot.