Phoenix Contact: Active Redundancy Modules Use Auto Current Balancing for Precise Load Sharing

The ACB technology, coupled with load current monitoring, remote diagnostics and visual indications, ensures maximum reliability in redundant power systems. the technology automatically and symmetrically distributes the load current without regard to effects such as temperature drift. With a balanced current draw, lifetime expectancy of each power supply may double. The module's display shows the status of the load sharing. If the module nears a critical state, it will generate an alarm. The module can also monitor the load current. If a load powered by redundant power supplies draws more current than a single power supply can provide, this essentially defeats the redundancy. At this point the module will send an alarm to the control system. Typically this functionality would require an additional current monitoring product. The module can also diagnose itself. If the internal redundancy is defeated, the module generates an alarm to the control system.

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