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External battery cabinet
All the UPS within the SE family can be supplied with matching external Battery Cabinets. These can be supplied by
the factory or by a local supplier subject to being compliant with the statement below.
Read the Battery Cabinet manual before connecting the batteries.
The Battery Cabinet total voltage shall meet the requirements of the UPS (refer to the Battery
Cabinet nameplate and/or Battery Cabinet User Manual).
THE CONNECTION BETWEEN THE UPS AND THE BATTERY CABINET MUST BE MADE WITH THE
UPS POWERED OFF AND ISOLATED FROM THE INCOMING MAINS SUPPLY
UPS POWER-OFF PROCEDURE:
Please Refer to the “Operative Procedures”, “System off command” paragraph.
Open all of the isolation switches and fuse holders present within the UPS.
Isolate the UPS from the incoming mains power supply by opening all the external protective devices
situated on the input and output lines.
Wait a few minutes before proceeding to work on the UPS.
Remove the terminal cover from the UPS.
CONNECTING THE BATTERY CABINET:
ATTENTION: For the cross sectional area of the connection cables please refer to the “Installation
Manual”, ”POWER CONNECTION INFORMATION” paragraph. Furthermore, the three battery cables
(+, -, N) must be placed close to each other in order to avoid loops.
For EMI reasons, if possible, place the UPS and Battery Cabinet side by side in order to keep the
cable length as short as possible (suggested 3mt maximum). If it is not possible due to space
limitations, maximum admitted length is 25mt. If extended length is required, please contact your
local service centre.
Check that the battery voltage of the Battery Cabinet corresponds to that allowed by the UPS (check the
data plate on the Battery Cabinet and the UPS manual)
IMPORTANT:
make sure that the fuse holders of the UPS and the Battery Cabinet are open.
Remove the terminal cover from the Battery Cabinet.
Connect the earthing terminals of the UPS and Battery Cabinet using a yellow/green wire of the proper cross
section.
Connect the wires to the terminals of the UPS and the Battery Cabinet:
terminals marked with the
+
symbol with the red cable (or colour as stipulated by local/country
regulations)
terminals marked with the
N
symbol with the blue cable (or colour as stipulated by local/country
regulations)
terminals marked with the
–
symbol with the black cable (or colour as stipulated by local/country
regulations)
The correspondence indicated by the symbols printed on the terminal cover of the Battery Cabinet and
the UPS must be respected.
Please refer to the Installation manual for further information with regards to the wiring cross sectional area.
Replace all of the terminal covers previously removed.
