©
CIAS Elettronica S.r.l.
Ed. 1.0
Installation Handbook
page
42
of
51
CORAL
3.2
Equipment Connection to the Power Supply
Even when the equipment is Direct Current powered ( 13,8 V
)
,
they still operate properly, but
it is advisable to power it by Alternating Current ( 19 V
~ ) or (24
V ) using the power supply and
battery recharge IN DOTAZIONE
.
3.2.1 Connection to the Power Supply
The connection from the equipment to the transformer must be as short as possible (less then 4
meters), and the section of the conductor must not be less than 1.5 mm².. The connection from
the transformer to the 230 V~ mains will be as that of the previous one. The power supply cables
connecting transformer with equipment, must be of screened type with screen connected to
ground. The cables have to be connected to the terminal streps (MS1) on the terminals 1 and 2
of the Rx and Tx circuit. The protection fuse is F1 is 2 A (T2A) slow-blow type.
Use only safety
transformers
with the following characteristics:
•
primary voltage:
230 V~
•
secondary voltage
19 V~
•
minimum power
30 VA
Note:
use only safety transformers (example Certified EN 60950)
Make sure to connect the body of the transformer to hearth tap.
The transformer connection to the main (230 V~), must be carried out through
one circuit breaker having the following characteristics:
•
bipolar with minimum distance between contacts equal to 3 mm
•
provided in the fix part of cabling
•
easily
accessible
However laws and standards concerning installations of devices permanently connected
to the main (230 V
~
), must be strictly respected (in Italy Law 46/90 and standard CEI 64-8).
Remark:
if the barrier power supply is an external dc voltage (13,8V ), to avoid the activation
of the fault contact, due to main missing for more than 3 hours, it’s necessary to
connect the positive incoming voltage (13,8V ), also to the terminal
1
or
2
of the
terminal block
MS2
either on transmitter and receiver PCB
3.2.2 Connection of stand-by Battery
Into each equipment heads there’s the housing for an optional rechargeable back-up lead Battery
12 V
– 2 Ah (optional). The battery is charged by the internal power supply, through the red
and black fastons and wires connected to the terminal block MS2 of the Rx and Tx circuit. The
provided protection fuse (against overload and/or battery polarity inversion) F1 is 2A (T2A) slow-
blow type The back-up lead battery allows to the barrier head (TX or RX), at more than 24 hours
of perfect working, in case of mains missing.
Note:
package, of the optional standby battery, must have a flame class equal or better than HB
( UL 94 Standard ).
