Eaton Power Xpert 9395P-1100/1100 Installation And Operation Manual

Also see for Power Xpert 9395: Installation and operation manual Installation and operation manual Installation and operation manual Installation and operation manual Installation and operation manual

Eaton® Power Xpert® 9395P-1200 Installation and Operation Manual 164000500—Rev 11 5depending on the load and configuration. In addition, when one UPM is taken out of service for maintenance oris not operating properly, a redundant UPM continues to supply uninterrupted power to the critical load. APowerware Hot Sync® Controller Area Network (CAN) Bridge Card provides connectivity and operational modecontrol. The distributed bypass system consists of two to five UPSs each with a parallel CAN card, and acustomer-supplied tie cabinet or load distribution panel to act as a tie point.All UPSs in the distributed bypass system must contain the same number of UPMs. Mixed UPS kVA ratings arenot permitted.The tie cabinet must contain Module Output Breakers (MOBs) with dual auxiliary contacts for control of thesystem. Without dual auxiliary MOBs, UPMs are not allowed to go to bypass individually during servicing. AllUPMs will go to bypass instead of just the UPM needing service, decreasing critical load protection. With dualauxiliary MOBs, one UPM can be bypassed while the remaining UPMs support the load as long as theremaining UPMs have the capacity to do so.11..33..66 IInnppuutt OOuuttppuutt MMoodduullee CCoonnffiigguurraattiioonnThe UPS can be supplied in an Input Output Module (IOM) configuration without the bypass input connections,the static switch, the motorized wraparound bypass breaker, and the backfeed protection contactor. Thisconfiguration is primarily used in multiple UPS parallel systems that do not need a bypass for each UPS and usea separate System Bypass Module (SBM) to provide system bypass capabilities.11..33..77 CCoonnttiinnuuoouuss SSttaattiicc SSwwiittcchhA continuous static switch is used to provide transfer of the load from the inverter to the bypass source in theevent the inverter become unavailable.11..33..88 IInnhheerreenntt RReedduunnddaannccyyTo deliver greater reliability, the Eaton 9395P-1200 UPS can be configured by an authorized Eaton CustomerService Engineer for inherent redundancy. When configured, the UPS automatically becomes redundant if theload is at or below the capacity of the UPMs minus the capacity of one UPM. Under normal conditions theUPMs in the UPS share the load equally. If one or more UPMs becomes unavailable and the load is at or belowthe capacity of remaining UPMs, the remaining UPMs supply the load instead of transferring to bypass.If the capacity of the UPMs falls below the redundancy level or the load increases above redundancy level, butis still able to maintain the load, a loss of redundancy alarm is sounded. If the load exceeds the capacity ofremaining UPMs, the UPS transfers to bypass.11..33..99 EEnneerrggyy SSaavveerr SSyysstteemm aanndd HHiigghh AAlleerrtt MMooddeessNOTE Energy Saver System mode requires the UPS to be factory built with a Continuous StaticSwitch (CSS).NOTE The Variable Module Management System and Energy Saver System modes aremutually exclusive.As a subset of Online mode, the Energy Saver System (ESS) mode maximizes efficiency by eliminatingunnecessary power conversion when the commercial power source is within acceptable voltage and frequencylimits. In this mode, the UPS is actively monitoring the critical bus and instantly and seamlessly transitions todouble-conversion mode (inverter online) if a commercial electrical power brownout, blackout, overvoltage,undervoltage, or out–of–tolerance frequency condition occurs.In High Alert mode the unit transfers from ESS mode to double-conversion mode or if in double-conversionmode remains in double-conversion mode for a default time period of one hour. High Alert mode allows theuser to place the unit in double-conversion mode when outside conditions could cause a power disturbance. Atthe completion of the time period, the unit defaults back to ESS mode. If the High Alert command is receivedduring the time period, the timer will be restarted.Introduction