CIAS Elettronica S.r.l.
Ed. 1.5
Installation Handbook
page
57
of
66
CORAL-PLUS
4.3 Connection to the Power Supply 230Vac
Along with the CORALPOWER accessory, you can use the toroidal transformer (code
TRTOR), to be put into the dedicated housing both in Tx and Rx units.
In case you wish to use an external third party transformer, the connection must be made using
conductors whose cross-section is at least 1.5 mm².
The cable that carries power from the transformer to the equipment should be as short as
possible, must be shielded and the shield must be grounded.
The two wires should be connected to terminals 1 and 2 of terminal block MS1 positioned on
the circuit of CORALPOWER for both the receiver and the transmitter.
The protection fuse F1 is 2 A (T2A) slow-blow type.
The
transformer characteristics are following:
primary voltage:
230 V~
secondary voltage
19 V~
minimum power
30 VA
Note
: use only safety transformers certified EN 60950 and 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).
4.4 Connection of stand-by Battery
I
nto each equipment head 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 (optional kit cod. CORALPOWER) through
the red and black faston and wires connected to the terminal block MS2 of the power supply an
battery charger circuit (both Rx and Tx heads).
The protection against overload and/or battery polarity inversion, is provided by an auto
resettable fuse (300 mA).
The back-up lead battery allows more than 24 hours of perfect working to the barrier head (TX
or RX), in case of mains supply missing. A fault condition is activated if continuously for 3 hours
the mains supply is missed.
Note
:
package, of the optional standby battery, must have a flame class equal or better than
HB (UL 94 Standard).
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