详细介绍: PMC676RCSC-1 b.当有通道故障时,保护输出被闭锁。只有故障排除并按故障复位键后,故障状态输出才会被撤消,与此同时解除对保护输出的闭锁。 c.经有效性诊断后,输入信号分别进行超限判断。判断项目为:1.是否超预报限,若超则左右分别经2s延时后(或左右相/或0后延时2s)输出预报信号;2.是否超保护限,若超限且无故障闭锁,则左右分别经2s延时后(或左右相/与0后延时2s)输出保护信号。 d. PMC676RCSC-1在延时2s期间,若预报复限则延时复归;在延时2s期间,若保护复限或有闭锁,则延时复归。 PMC676RCSC-1 总结S7 300PLC继承了西门子S系列PLC体积小,组态灵活、功能强大的传统设计特色,非常适合机组主保护对热工装置的准确性、可靠性、完备性的要求。用S7 300PLC构成的保护系统,利用其可OB35中程序流程编程特性,加强了保护系统的故障诊断逻辑功能和保护逻辑功能,特别是其保护误动率大大降低的特点,远远优于原来捷克组件那种靠继电器硬接线实现保护逻辑动作的模式。 PMC676RCSC-1 PMCE4R-3201 PMC610IND PMCE4R-1200 PMCD3G-1300 PMC695TX-FWTCP PMC677/LX PMC676TX-PXE PMC676SC-S PMC676RCTX POW1DRV-INT1MS PMCF3-471 POPW-GBX460-01A PMX-TOR1M PMCSTARL-VXWM PMCQ1R-300 PMCPCIM-4000A PMCGA3-5AE9F0 PMCF3-3D0 PMCF3-371 PMCF3-330 PMCF3-2B1 PMCF3-260 K & T / Gemini D Memory Board, # 1-21271 03, WARRANTY
K & T / Gemini D Memory Board, # 1-21271 02, WARRANTY
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