Eaton Power Xpert 9395 Installation And Operation Manual

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UPS INSTALLATION PLAN AND UNPACKINGEATON Power Xpert 9395 UPS (1000–1100 kVA) Installation and Operation Manual 164201764 Rev 3 www.eaton.com/powerquality 3-23 When installing internal interface wiring to X-Slot terminals, route the wiringthrough the internal opening in the X-Slot communication bay. All building alarm inputs or remote features require an isolated normally‐opencontact or switch (rated at 24 Vdc, 20 mA minimum) connected between the alarminput and common terminal. All control wiring and relay and switch contacts arecustomer‐supplied. The building alarms can be programmed to display the alarm functional name. LAN and telephone drops for use with X-Slot connectivity cards must be providedby the customer. The UPS battery aux signal wiring from the UPS must be connected to the batterydisconnect device. A supplemental 48 Vdc shunt trip signal for the battery disconnect device isprovided, but is not required for normal operation. Battery aux and 48 Vdc shunt trip wiring should be a minimum of 18 AWG. The REPO feature opens all contactors in the UPS cabinet and isolates power fromyour critical load. Local electrical codes may also require tripping upstreamprotective devices to the UPS. The REPO switch must be a latching-type switch not tied to any other circuits. A jumper wire must be connected between pins 1 and 2 on TB1, if thenormally‐closed REPO contact is not used. REPO wiring should be a minimum of 22 AWG and a maximum of 14 AWG. The REPO switch wiring must be in accordance with NEC Article 725 Class 2requirements. The maximum distance between the REPO and the UPS cannot exceed150 meters (500 feet). Alarm relay contacts have a maximum current rating of 5A and a switched voltagerating of 30 Vac and 28 Vdc. Alarm relay wiring should be a minimum of 22 AWG.C A U T I O NOn all 9395 models that will be fed by a site generator at any time it is recommended to have an “OnGenerator” sensing input connected and proven functional. This allows the UPS to optimize its operationwith the generator. This function includes reduced input current and battery current limits, slower walk-in toease the load step on the generator initially, and HIGH ALERT mode for ESS and VMMS operation.HIGH ALERT mode is desired because any loads with a leading power factor will not be seen by thegenerator. Rectifier operation will be much softer while on generator thereby increasing overall systemstability.3.2.4 Distributed Bypass Power Wiring PreparationRead and understand the following notes while planning and performing theinstallation: All distributed bypass UPS rectifier inputs must come from one source and allbypass input feeds must come from one source. All UPSs in the distributed bypass system must contain the same number ofUPMs. Mixed UPS kVA ratings are not permitted. Distributed bypass UPS input wiring size requirements and output wiring sizerequirements from the UPSs to the tie cabinet or distribution panel are the same aslisted in Table 3‐4, Table 3‐5, Table 3‐6, or Table 3‐7 starting on page 3-11.