8
RED DIODE:
•
lights – the power-supply unit supplied with 230V AC
•
does not light – no 230V AC supply
GREEN DIODE
•
lights – DC voltage at the AUX output of the power-supply
unit
•
does not light – no DC voltage at the AUX output of the
power-supply unit
7. Using the dip switch
‘JP-B’
determine whether the function of disconnecting the discharged battery U<10V (+/-
5%) is to be on or off.
The battery protection is on
if the dip switch ‘JP-B’ is removed.
8. Activate the ~230V/AC supply (the AC red diode should be permanently illuminated, and AUX diode should be
permanently illuminated).
9. Check the output voltage (the PSU 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 P1, monitoring the voltage at the AUX output of the PSU.
10. 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).
11. Once the tests and control operation have been completed, lock the enclosure, cabinet, etc.
3. The power supply operation indication.
3.1 Optical indication.
The module is equipped with two diodes on the front panel:
Moreover, the PSU is equipped with three diodes indicating operation status: AC, LB, AUX placed on the
PCB of the power supply unit module:
•
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.
•
LB- red diode
: indicates the battery charging process; the intensity of illumination is dependent on the
charging current.
•
AUX
-
green diode
: indicates the DC supply status at the output of the PSU. Under normal status, the
diode is permanently illuminated and in the case of short-circuit or overload, the diode goes off.
3.2 Technical outputs.
The PSU is equipped with indication outputs.
•
BS - absence of AC supply output
: - OC output type indicates the loss of AC supply in a normal status,
with the supply equal to 230V, the output is deactivated and in case of power supply loss the PSU
activates the output after 20s.
•
AW - technical output of the power supply - PWR OK
: OC output type indicates failure of the power
supply (short circuit, overload). In a normal status (while correct operation) of the stabilizer, the output is in
state L – short to ground (0V), in case of incorrect operation parameters (voltage, temperature) the output
is switched into hi-Z state.
•
TAMPER - output indicates opening the power-supply unit,
output as volt-free contacts which indicate
power-supply unit door status and fastening to the ground: NC’ unit opened and/or wrongly fastened (e.g.
unit unconnected with the ground): NO.
4. Service and operation.
4.1 Overloads or short circuits to the PSU.
The AUX output of the PSU is equipped with the PTC polymer fuse assisted protection. If the load of the
PSU exceeds I
max
(load 110% ÷ 150% @25ºC of the PSU power), the output voltage is automatically disconnected
and this is indicated by the green diode going off. The voltage at the output may be restored by disconnecting the
output load for the period of about one minute.
In the case of the short-circuit to the AUX, BAT output, (load 200% ÷ 250% of the PSU power) or incorrect
connection of the battery, the fuse F1 in the battery circuit becomes permanently damaged and the restoration of
the voltage at the BAT output requires the replacement of the fuse.
Содержание PSBD 5012
Страница 5: ...5 Fig 2 The view of the power supply...