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

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46 Eaton® Power Xpert® 9395P-1200 Installation and Operation Manual 164000500—Rev 11• When installing external interface wiring (for example, building alarm, relay output, battery breaker trip, andX-Slot) to the UPS interface terminals, conduit must be installed between each device and the UPScabinet.• Install the interface wiring in separate conduit from the power wiring.• When installing internal interface wiring to X-Slot terminals, route the wiring through the internal opening inthe X-Slot communication bay.• All building alarm inputs or remote features require an isolated normally-open contact or switch (rated at 24Vdc, 20 mA minimum) connected between the alarm input and common terminal. All control wiring andrelay and switch contacts are customer-supplied and may need to use Class 1 wiring, see above.• The building alarms can be programmed to display the alarm functional name.• LAN drops for use with X-Slot connectivity cards must be provided by the customer and may need to useClass 1 wiring, see above.• The UPS battery aux signal wiring from the UPS must be connected to the battery disconnect device.• A supplemental 48 Vdc shunt trip signal for the battery disconnect device is provided, but is not requiredfor 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 from your critical load. Localelectrical codes may also require tripping upstream protective 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 the normally-closed REPO contact isnot 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 2 requirements.• The maximum distance between the REPO and the UPS cannot exceed 150 meters (500 feet).• Alarm relay contacts have a maximum current rating of 5A and a switched voltage rating of 30 Vac and 28Vdc.• Alarm relay wiring should be a minimum of 22 AWG.NOTE 1 On all 9395P-1200 models that will be fed by a site generator at any time it isrecommended to have an “On Generator” sensing input connected and provenfunctional. This allows the UPS to optimize its operation with the generator. Thisfunction includes reduced input current and battery current limits, slower walk-in to easethe load step on the generator initially, and HIGH ALERT mode for ESS and VMMSoperation.NOTE 2 HIGH ALERT mode is desired because any loads with a leading power factor will not beseen by the generator. Rectifier operation will be much softer while on generatorthereby increasing overall system stability.33..22..66 DDiissttrriibbuutteedd BByyppaassss PPoowweerr WWiirriinngg PPrreeppaarraattiioonnNOTE For full-rated operation of a Distributed Bypass System when in Bypass or ESS mode,the line frequency impedance of all conduction paths must be equal when assessedfrom the point where the Bypass Power Source connects to the System Switchgear tothe point where the Common Load connects to the System Switchgear.Read and understand the following notes while planning and performing the installation:UPS Installation Plan and Unpacking