Eaton 93PM User And Installation Manual

Also see for 93PM IBC-L: User and installation guide Manual Installation and operation manual User and installation guide Installation manual

Contents

18 30-200 kW P-164000249User's and Installation Guide Revision 22.3.1 Advanced Battery ManagementAdvanced Battery Management technology uses sophisticated sensing circuitry and a three-stagecharging technique that extends the useful service life of UPS batteries while optimizing the batteryrecharge time. ABM also protects batteries from damage caused by high current charging andinverter ripple currents. Charging at high currents can overheat and damage batteries.In charge mode, the batteries are recharged. Charging lasts only as long as it takes to bring thebattery system up to a predetermined float level. Once this level is reached, the UPS battery chargerenters float stage and the charger is operating in constant voltage mode.Rest mode begins at the end of charge mode; that is, after 48 hours of float charging (customeradjustable). In Rest mode, the battery charger is completely turned off. The battery system receivesno charge current during this rest period of about 28 days (customer adjustable). During Rest mode,the open circuit battery voltage is monitored constantly, and battery charging is resumed whennecessary.2.3.2 Powerware Hot SyncEaton Powerware Hot Sync technology is an algorithm that eliminates the single point of failurein a parallel system and therefore enhances the system reliability. The Hot Sync technology isincorporated in all Eaton 93PM UPSs, and it is utilised in both multi-module internal parallel andexternal parallel systems.Hot Sync technology enables all uninterruptible power modules (UPMs) to operate independently ina parallel system, even without inter-module communications. The power modules utilising the HotSync technology are completely autonomous; each module monitors their own output independently,to remain in complete synchronization with the other modules. The UPM power modules share theload perfectly even in changing capacity or changing load conditions.Powerware Hot Sync technology combines digital signal processing and an advanced controlalgorithm to provide automatic load sharing and selective tripping in a parallel UPS system. The loadshare control algorithms maintain synchronization and load balance by constantly making minuteadjustments to variations in the output power requirements. The modules conform to demandand are not in conflict with each other for the load. Powerware Hot Sync systems are capable ofparalleling for both redundancy and capacity.2.4 Software and connectivity features2.4.1 Customer interfaceMini-Slot Communication Bays — there are three communication bays for mini-slot connectivity cards.Mini-slot cards are quickly installed and are hot-pluggable. See Chapter 5 Communication interfaceson page 53 for additional information.2.4.2 Power Management SoftwareIntelligent Power software products offer tools for monitoring and managing power devices acrossthe network. See Chapter 5 Communication interfaces on page 53 for more information.