Eaton 9PX 5000i RT3U Netpack Installation And User Manual

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Page 20 614-09354-01_EN5.1 UPS parallel system start-upIn "Redundancy Only" mode, verify that the total equipment ratings do not exceed the capacity of oneUPS to prevent an overload alarm.In "Parallel Operation" mode, verify that the total equipment ratings do not exceed the capacity of twoUPS to prevent an overload alarm.1. Check the two UPS are correctly connected to the ModularEasy(see "4. Power cables connection", page 14).If the UPS is equipped with outlets, those outlets can no longer be used (loads can only be connected tothe ModularEasy outlets or the ModularEasy Output terminal blocks)Check that two UPS are connected together with the 9PX parallel cable.PN: 744-A26752. Check that the ModularEasy terminal blocks are connected to the AC source,and to the Bypass AC source (*)3. Check that the ModularEasy manual Bypass switch is to the "UPS" position4. Set the UPS output switch of the ModularEasy to the "I" position (On) for 9PXMEZ6Ki.Set the two UPS output switches of the ModularEasy to the "I" position (On) for 9PXMEZ11Ki5. Set the AC source upstream circuit breaker (not provided) to the "I" position (On) to switch on the utilitypower (see "3.4 Tower installation", page 10).Set the Bypass source upstream circuit breaker (not provided) to the "I" position (On) to switch on theBypass power (*).6. Check that the two UPS are correctly powered (UPS display panel lighted)7. Check the two UPS display "1UPS + 1UPS redundant". Do not continue to the next step if it is notdisplayed and check the two following features :a) The two UPS are connected together with the parallel cable, PN: 744-A2675b) The UPS firmware version is parallel compatible :Screen menu Identification UPS/NMC firmware.If "// Ready" doesn’t appear just next to the UPS firmware number, contact your Eaton reseller todownload the latest firmware.8. Choose the mode "Redundancy Only" or "Parallel Operation"by the Screen menu Settings In/Out settings Redundancy mode.• "Parallel Operation" is the default mode. "Parallel Operation" cancels the audible alarm when the loadpower is more than the maximum power of one UPS.• "Redundancy Only" set an audible alarm when the load power is more than the maximum power of oneUPS .9. Press the "ON" button of any one of the two UPS to start the parallel system.(*) only in case of Bypass AC source option connected (9PXMEZ11Ki only).5. Operations