ABB XVC724BE101支持现场总线接口冗余操作

特性

●SA 801F/SA 811F: 输入电源115/230V AC ( 自动调压) .

输出电源电气隔离

●SD 802F/SD 812F: 冗余输入电源24V DC，符 合NAMUR标准

●电源模件输出: 5V DC/5A与3.3V DC/5A

●电源故障信号诊测与保护

●电源模件及现场控制器运行状态批示灯

●短路保护及限流

●在主电源故障时,输出20ms能量保持，符合NAMUR标准

功能描述

现场总线控制器模件通过电源模件提供5V DC/5A与3.3VDC/5A辅助电源。电源模件具备开路、过载与短路保护功能。同时提供高稳定性的输出电源。

一旦 电源故障，在5ms之内现场控制器产生一个电源故障信号,同时输出电压保持20ms,在此期间故障信号可以使CPU模件运行

关断程序并进入安全状态或进行电源切换。电源恢复后.需重新启动系统及应用程序.输出电压最少可保持15ms。

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