6
Diagram.1. Relation between the required transformer capacity S and the output current I of the PSU module.
2.2 Installation procedure.
1.
Install
the
enclosure
or
cabinet
and
insert
the
cabling
through
the
cable
passes.
2. Install the PSU on DIN rail: mount the enclosure on DIN rail, lock by the fastener (Fig.3).
3. Deliver the output voltage from the AC transformer to the ~AC~ terminals.
4. Connect the conductors of consumers to the
+AUX, -AUX
terminals of the terminal box on the PSU module
5. If necessary, connect the conductors from the equipment to the technical output Cx-NCx-NOx (alarm panel,
controller, signaling unit, LED diode, etc.).
6. Activate the ~230V/AC supply (the AC red diode should be permanently illuminated, and AUX diode should be
permanently illuminated).
7. Check the output voltage (the PSU module voltage without load should be anywhere between 13,6V-13,9V, and
during battery charging 11V-13,8V). If the value of the voltage requires adjustment, the setting should be made by
means of the potentiometer P, monitoring the voltage at the AUX output of the PSU module.
8. Connect the battery in accordance with the indications: +BAT red to ‘plus’, -BAT black to ‘minus’, (the LB diode
should go on and the lighting intensity should reduce with the charging time elapsed increasing).
9. Once the tests and control operation have been completed, lock the enclosure, cabinet, etc.
Fig.3. Installation procedure on the DIN rail.
3. PSU module operation indication.
3.1 Optical indication.
The PSU module is equipped with four diodes indicating operation status: AC, LB, AUX, Fbat.
•
AC- red diode
: under normal status (AC supply) the diode is permanently illuminated. The absence of AC
supply is indicated by the AC diode going off.
•
AUX
-
green diode
: indicates the DC supply status at the output of the PSU module. Under normal status,
the diode is permanently illuminated and in the case of short-circuit or overload, the diode goes off.
•
LB - yellow diode
: indicates the battery charging process; the intensity of illumination is dependent on
the charging current: 0,5A=100%.......0A=0%.
•
Fbat – blue diode:
under normal status the diode does not illuminate. Fuse failure (fuse blown) is
indicated with illumination of the above mentioned LED diode.
