LX: OPM_LPA_11U_5K0_10K_1US_V021 35 GE DE LanPro-11U UPS: Installation / User Manual 2.1 (US)GE Digital Energyg7.1 Extended RuntimeExtended runtime versions are equipped with additional separate battery packs to increase the runtime of the unit.Additional batteries will increase the recharging time for the unit. All other operational information is the same.If a battery pack is connected, the UPS must be informed about the new total battery capacity to allow a reliablerecalculation of the available run time. Please refer to section 5.3.4 ‘Setup Menu’. Dependent of the charge conditionof the new batteries the new run time calculations may temporarily be unreliable.Connecting an external charger may cause damage to the UPS. As the batteries are not galvanically separated fromthe utility input, the external charger must be galvanically separated from the utility. Using an external charger willcause a false run time prediction during charging time, the correct run time will be shown 10 hours after reachingbattery float charge. If you are in doubt, contact your dealer.Battery pack A: 240V / 7 AhBattery pack B: 240V / 14 AhBatt. cap. of tot. cap. runtime (minutes), at 100% / 50% loadpack(s) batt. pack(s) incl. internal(Ah) battery (Ah) L5-11U L6-11U L8-11U L10-11UL5/6-11U L8/10-11U- - 7 12 10/25 8/20 11/29 8/22A 7 14 19 25/60 21/50 22/50 16/39B 14 21 26 45/90 35/75 33/70 25/57A+B 21 28 33 60/120 50/100 44/90 34/70B+B 28 35 40 80/150 65/130 55/110 43/90For more information please refer to the NOTES in section 4.4.5 step 6.7.2 Plug-in CardsAn option slot (rear panel, 13) allows easy installation of a relay or SNMP plug-in card. See sections 6.3 and 6.4 formore information.7.3 RPA-Facility (Redundant Parallel Architecture)Nowadays there are many mission-critical applications that need a fault tolerant, 100 % reliable availability of utilitypower. By adding the RPA-facility to the LanPro®-U (rear panel, 14), highest standards for reliability can be met. TheRPA-facility allows to connect 2, 3 or 4 units in parallel.Connecting GE Digital Energy LanPro®-U units in parallel is attractive for several reasons.Redundancy: To achieve the highest possible level of power protection in a fault-tolerant network.By connecting units in parallel, using the N+x system, a redundant system can be created. In this case all theUPSs equally share the load in the system during normal operation. In this way every possible single point offailure will be eliminated. This means that if one of the UPSs in the parallel system fails, the other(s) can stillsupply the load guaranteeing full protection without any interruption.Scalability: To add power if needed without investments beforehand.Another reason for paralleling units is upgrading the power rating of the system. If e.g. a 5kVA LanPro®-U isinstalled, the power rating can be upgraded to 10kVA by adding another 5kVA LanPro®-U in parallel. This spreadinvestment makes sure that you don’t have to invest in advance, but only when you need to.GE Digital Energy’s unique RPA system has the following major advantages:• GE Digital Energy’s RPA offers true redundancy because not only the power electronics are redundant, butalso the batteries, the bypass circuit and the control logic,• The RPA system is an option: you don’t have to buy it if you don’t need it.7 - Optional Features