www.pulsar.pl MSRK2512
5
The unit should be installed in the metallic enclosure (cabinet) and, in order to meet the requirements of UE, the
following rules should be observed: supply, development, shielding - accordingly to the application. The module requires
20-22V AC power supply with galvanic separation (transformer insulation).
2.2. Installation procedure
1. Install the enclosure or cabinet and insert the cabling through the cable passes.
2. Install the PSU module voltage reducer on the assembly bolts (the bolts should be installed prior to the operation of
enclosure or cabinet assembling).
3. Deliver the AC voltage to the
~AC~
terminals.
4. Connect the conductors of consumers to the +AUX, -AUX terminals of the terminal box on the power-supply unit.
5. If necessary, connect the conductors from the equipment to the technical outputs:
- FAC; status indication AC (alarm panel, controller, signaling unit, LED diode, etc.)
Use the
T
AC
(J1,J2)
jumper to
determine the indication time lag.
6. Using the dip switch I
BAT
the maximum current the battery should be determine, regarding to the battery parameters.
7. Using the dip switch P
BAT
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 P
BAT
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 13,6 V÷ 13,9 V, and during
battery charging 11 V÷ 13,8 V). If the value of the voltage requires adjustment, the setting should be made by means of
the potentiometer V
ADJ
, 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. PSU module operation indication
3.1. Optical indication
The PSU module is equipped with three diodes indicating operation status: AC, LB, AUX.
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 module. Under normal status, the
diode is permanently illuminated and in the case of short-circuit or overload, the diode goes off.
3.2. Technical output
The PSU module is equipped with indication outputs:
FAC - absence of AC supply output
: relay output indicates
the absence of AC supply
. In case of power failure power
supply unit will switch relay contacts after time set by jumpers T
AC
(J1, J2).
In Figure 2 configuration of contacts shows relay voltage-free state, which corresponds to the state
signalling no AC network.
4. Handling and operation
4.1 Overload or short-circuits to the PSU module output
The AUX output of the PSU module is equipped with the PTC polymer fuse assisted protection. If the load of the
PSU module exceeds Imax. (load 110% ÷ 150% @25ºC of the PSU module 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 module power) or
incorrect connection of the battery, the fuse F
BAT
in the battery circuit becomes permanently damaged and the restoration
of the voltage at the BAT output requires the replacement of the fuse.
4.2 Battery assisted operation
In the case of power failure, in the unit will instantly switch to the battery assisted operation.
In order to activate the operation of the PSU module from the battery itself, connect the BAT connectors in
accordance with the indications: +BAT red to ‘plus’ and, -BAT black to 'minus’ of the battery and press and keep
depressed for five seconds the START pushbutton on the equipment board.