Eaton 93PR Series - Chapter 3 UPS INSTALLATION PLAN

25-75 kW
User's and Installation Guide 41
ExternalBatteryCabinetInstallation(EBC)
Before connecting the external battery, please read the notice and warning label on the battery cabinet.
WARNING
• Intheeventofmalfunction,thebatterycabinetchassisorbatterycabinetframesmaybecomelive!.
• Specialcareshouldbetakenwhenworkingwiththebatterycabinetassociatedwiththeequipment.Ensure
the battery number is suited to the setting of the battery charging voltage before installing the battery. When
the battery cabinet is connected the overall voltage exceeds nominal voltage. It is very important to ensure
thatthebatteriesareinstalledseparately,inadedicatedbatterycabinet.
NOTE
• The most common battery type used in UPS installations is the valve regulated battery. Valve regulated
cellsarenotsealed.Theamountofgasgivenoffislessthanforfloodedcells,butwhenplanningthebattery
installation,allowancemustbemadeforadequateventilationandheatdissipation.Valveregulatedcells
are not completely maintenace- free. They must be kept clean and their connections checked periodically to
ensuretheyaretight,andthatthereisnoevidenceofcorrosion.Itisinevitablethatthebatterieswilllose
chargeduringtransportationandstorage;beforeattemptingtocarryoutanautonomytest,ensurethatthe
batteriesarefullychargedasthismaytakeseveralhours.Cellperformancetypicallyimprovesafterafew
discharge/rechargecycles.
• TherequirementsoftheECdirectivesaresatisfiedwhenbatterycabinetareusedwithoriginalaccessories.
Ifalternativebatteriesareused,youmustensurethattheappli-cableECdirectivesaremetanddeclare
conformity.
The default battery settings of the UPS are for 12 VDC VRLA batteries. If requested to use other battery
types, contact your Eaton representative. For the battery specification, see Chapter 8.4 Battery specification.
Connect the battery cabinet as follows:
1. Turn off the UPS.
2. Check all the external battery breakers are open.
3. Connect PE first.
4. Connect the battery cabinet(s) with cables sized according to cable cross section and protective device
specification to terminals + (positive pole) and - (negative pole).
5. Refer to instructions provided with the battery cabinet or by vendor.
WARNING
ENSURE CORRECT POLARITY!