Eaton 93PR 500 kW UPS
User's and Installation Guide
36
4.2. Battery System Installation
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.
• Battery back-up time do not exceed one hour, if the battery setting shall be exceeded one hour, consult to the
professional personnel.
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 maintenacefree.
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 applicable 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!
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