Liebert EXL S1 Installation
User Manual 10H52226UM60 - Rev. 1 - 01/2017
62
3.8. Connecting the batteries
UPS are supplied without the battery switch. It is mandatory that the Customer provides an external
battery protection device, ensuring that they are correctly rated.
Auxiliary signal contacts shall be assigned to a programmable input of XP11, so that the status of the
switch can be monitored during the normal operation.
Before connecting the batteries, please read the notice and warning label on the
UPS or battery compartment.
Notice
Full safety instructions on the use and maintenance of UPS batteries are provided in the
appropriate battery manufacturers' manuals. The battery safety information contained in
this section consists of key considerations which must be taken into account when
designing the installation and may affect its outcome, depending on local conditions.
W
arning
Special care should be taken when working with the batteries associated with the Liebert
EXL S1. When all batteries are connected together the overall voltage exceeds 500V.
It is very important to make sure that the batteries are separately installed in a specially
designed, lockable, dedicated battery cabinet or battery room.
Battery cabinet specifications can be found in para 8.3. on page 98 of this manual.
Warning
In the event of malfunction, the battery shelves and/or cabinet or battery holders may
become live!
Notice
T
he requirements of EC directives are met when battery compartments with original
accessories are used. If other batteries are used, make sure that the applicable EC
directives are met and that conformance is declared. The UPS must still be parameterized
with the service software and equipped with an all-pole disconnecting device and fuses,
as per Table 1 on page 38. When dimensioning your battery cables, note the connection
tolerances at terminals +/-.
Warning
ENSURE CORRECT POLARITY!