VMMS - Variable Module Management System

UPS efficiency increases with load level, but lighter loads are the rule rather than the exception. The solution is Eaton’s VMMS technology which optimizes overall system efficiency even at low load levels.

UPS systems are rarely loaded at full capacity. At load less than 40 percent of the full load rating, UPS efficiency decreases, thus increasing the system’s overall energy consumption. The solution is Eaton’s VMMS technology which allows the UPS to achieve higher efficiency for lighter loads.

With VMMS, the UPS system sets redundant power modules to ready state. In this way, the remaining power modules drive the load with higher efficiency. When the load increases again and more power modules are needed, the system shifts the load into additional modules immediately. VMMS adapts both to a single UPS consisting of multiple power modules and multiple UPS parallel system. VMMS is currently available in Power Xpert 9395P UPS.

 VMMS Flash animation

System with Eaton modular Power Xpert 9395P UPS and VMMS (825 kW)

Full system efficiency is automatically optimised according to load level