Eaton E DX Series User Manual

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2. Installation--8--2.3 Operating procedure for connecting the long backup time model UPS with theexternal battery1. The nominal DC voltage of external battery pack is 240VDC. Each battery packconsists of 20 pieces of 12V maintenance free batteries in series. To achieve longerbackup time, it is possible to connect multi-battery packs, but the principle of “samevoltage, same type” should be strictly followed.2. The connector of the external battery cable is used to plug into the external batterysocket of the UPS, the other end of the external battery cable is made of three openwires with ring terminals to connect with the external battery pack(s). The procedureof installing battery bank should be complied with strictly. Otherwise you mayencounter the hazardous of electric shock.1) A DC breaker must be connected between the battery pack and the UPS. Thecapacity of breaker must be not less than the data specified in the generalspecification.2) Set the battery pack breaker in ”OFF” position and connect the 20 pieces of batteriesin series.3) You must connect the external battery cable to the battery first, if you not, you mayencounter an electric shock hazard. The positive pole of the battery is connected tothe 10000HXL31 in parallel with blue and brown wires; the negative pole of thebattery is connected to the 10000HXL31 in parallel with black and white wires; thegreen and yellow ribbon wire is connected to the ground of the battery cabinet. For15000HXL31/20000HXL31, the connection of battery wire is the same as that ofinput and output wire, and a green or green and yellow ribbon wire UL1015 6AWG(25mm2) must be connected between the input protective earth terminal and thebattery cabinet.3. Plug the connector of the external battery cable into the external battery socket ofthe UPS to complete the connection. Do not attempt to connect any loads to the UPSnow. You should connect the input power wire to the right position first. And then setthe breaker of the battery pack in the “ON” position. After that, set the bypass breakerin the “ON” position. The UPS will begin to charge the battery packs.The blue & brown wires for connection to the positive terminal of the battery packThe black & white wires forconnection to the negativeterminal of the battery packThe green and yellow ribbon wire for connection tothe ground of the battery cabinetThe receptacle forconnecting the UPSThe external battery cable diagram for10000HXL31PDF created with pdfFactory Pro trial version www.pdffactory.com