21
equipment and adversely affect its proper operation
or generate as a direct or indirect fire with a strict
preventive maintenance control.
This control will be more rigorous, exhaustive and appro-
priate to the circumstances, when there may be a dusty
environment with conductive materials in suspension.
The modules are equipped with three internal speed
regulated fans. The air flow is channeled from the front
to the rear. Do not block the cooling holes or obstruct
the air flow.
The subrack modules allow full integration into a rack
cabinet without cooling grids on the side.
To allow comfortable operation of personnel, it is rec-
ommended to leave a free space on the front of 1 m
that allows loosely open the door of a rack cabinet and
facilitate the operations of removal or installation of
additional modules.
It is necessary to leave a minimum of 50 cm in the back
for free circulation of cooling air exhausted by the fans.
When the conditions of the room are extreme, it will be
necessary to install an external cooling system to force
the cooling air flow.
The acoustic level of the cooling system is high and in-
validates the equipment to install it in the same room
where office personnel work.
Only intended for mounting on concrete or other non-
combustible surface.
For the battery cabinets supplied by our brand, the bat-
tery trays are extracted frontally. Leave a free space on
the front of 1 m for the installation of batteries and pre-
ventive maintenance.
In general comply with all the conditions indicated in
the safety instructions (document EK266*08).
5.2.2. Room for the batteries.
•
The batteries generate quantity of hydrogen and oxygen
during the charging process, reason why it is indispensable
condition to have a good air flow of the room.
•
The stability and ambient temperature of the room where
the battery is located is an important factor that determines
the capacity to store the energy during the chemical pro-
cess that occurs during the charge. In the same way, these
factors influence the reverse chemical process that occurs
in the discharge in the event of an energy demand and that
they have a significant effect on shortening the useful life
of the same.
The nominal operating temperature of a battery is 20°C.
Operating above this temperature will reduce its duration
or life and operating below it will reduce its storage ca-
pacity. If the average operating temperature of the battery
increases from 20ºC to 30°C, the service life will be re-
duced by 50%. If the operating temperature exceeds 40°C,
the service life will be reduced exponentially.
In a normal installation, the battery temperature is main-
tained between 15 and 25ºC. Keep batteries away from
heat sources or air intakes.
•
When external batteries are used, the protections (fuses
or circuit breakers) should be mounted as close as possible
to the batteries and their connecting cables between them
and the UPS should be as short as possible.
5.2.3. Physical location.
608
=
=
352
=
=
30x ø12
308.4 -for 2 slots- 485 -for 4 slots- 930 -for 6 slots-
90 90 100
Base (for 2 and 4 slots) or space for
castors (for 6 slots)
30
681.7
Depth reserved for different
material according to model
696.7
30
Handle
484.6
441.0
Fig. 21.
Maximum subrack dimensions and fixing points.
•
Initially the subracks of 2 and 4 slots are equipment de-
signed to be integrated in a rack type cabinet.
Although they can be used as desktop equipment, it is neces-
sary to fix them to a solid surface through the holes in the
base (see Fig. 21), respecting compliance with the regulation
stating "Only intended for mounting on concrete or other non-
combustible surface” and considering the following premise:
EMi3
SERVOMOTOR VOLTAGE STABILISER
USER'S MANUAL
