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发明公开
CN107037778A 军用冷液设备控制双备份系统 无效 - 驳回

军用冷液设备控制双备份系统
摘要：
本发明公开了一种军用冷液设备控制双备份系统，包括有PLC模块1、PLC模块2、触摸屏、传感器、中间继电器、交流接触器、指示灯、旋钮开关和机电元件，PLC模块1和PLC模块2分别与触摸屏、传感器和中间继电器的线圈相连接，中间继电器的触点分别与交流接触器的线圈和指示灯的接线端子相连接，交流接触器的线圈与旋钮开关相连接，交流接触器的触电与机电元件的接线端子相连接。本发明默认由PLC控制系统1实现控制，PLC模块1工作时，PLC模块2不通电，保证PLC模块2正常备用；冷液设备PLC控制系统1故障时，PLC控制系统2代替实现控制；冷液设备PLC控制系统1和PLC控制系统2故障时，强制控制系统代替实现控制。
摘要（英）：

The invention discloses a dual backup system for controlling military cold liquid equipment. The dual backup system comprises a PLC module 1, a PLC module 2, a touch screen, a sensor, an intermediate relay, an AC contactor, an indicator light, a rotary switch and an electromechanical component, wherein the PLC module 1 and the PLC module 2 are connected with the touch screen, the sensor and a coil of the intermediate relay respectively; a contact of the intermediate relay is connected with a coil of the AC contactor and a connection terminal of the indicator light separately; the coil of the AC contactor is connected with the rotary switch; and a contact of the AC contactor is connected with the connection terminal of the electromechanical component. Control is achieved by a PLC control system 1 in a default manner; when the PLC module 1 works, the PLC module 2 is not electrified and normal backup of the PLC module 2 is ensured; when the PLC control system 1 of the cold liquid equipment is in failure, control is achieved by the PLC control system 2; and when the PLC control system 1 and the PLC control system 2 of the cold liquid equipment are in failure, the control system is forced to achieve control.

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