3
2. Installation.
2.1 Requirements.
The buffer PSU shall be mounted by the qualified installer having appropriate (required and necessary for a
given country) permissions and qualifications for connecting (operating) 230V/AC installations and low-voltage
installations.
Before installation is started, the balance of the PSU load shall be performed. During the normal operation,
the sum of currents collected by receivers and the battery charging current shall not exceed
5.6 A
.
As the PSU is designed for a continuous operation and is not equipped with a power-switch, therefore an
appropriate overload protection in the PSU circuit shall be guaranteed. Moreover, the user shall be informed about
the method of isolation of the PSU from the power voltage (usually through assignment and marking of an
appropriate fuse in the fuse-box). The electrical system shall be made in accordance with valid standards and
regulations.
The device shall be mounted in closed rooms, according to the environment class II, of the normal air
humidity (RH=90% max. without condensation) and the temperature within the range from -10°C to +40°C. The
PSU shall operate in a vertical position so that free and convectional air flow through ventilating holes of the casing
is guaranteed.
ATTENTION!
Before installation is started, the voltage in the 230V PSU circuit shall be isolated.
2.2 Installation procedure.
1.
Before installation is started, the voltage in the 230V
PSU
circuit shall be isolated.
2. The
PSU
shall be mounted in a selected location and connection cords shall be lead.
3. Remove the power fuse protecting the primary circuit of the transformer [15] (Fig 3).
4. The ~230V power cables shall be connected to AC 230V terminals of the transformer [14] (Fig 3). The earth conductor shall
be connected to the terminal marked by the earth symbol [16] (Fig 3). The connection shall be made by means of a three-core
cable (with a yellow and green PE protection wire). The power cables shall be lead to appropriate terminals of the connection
block [14] [16] (Fig 3) through bushing.
The circuit of the shock protection shall be performed with a particular care, i.e. the yellow and green
protection wire of the power cable shall be connected from one side to the terminal marked by the
symbol of
in the casing of the PSU. Operation of the PSU without the properly made and fully
operational circuit of the shock protection is UNACCEPTABLE! It can result in failure of devices and
electric shock.
5. Connect the wires of the receivers to the connectors [9] (Fig 3)
- OUT1+ and -OUT2+ at the PSU board: if
2x 2,5A is used, (if 1x5,0A is used, make a bridge bOUT1 and +OUT2 at the PSU board).
6. If necessary, connect the wires from devices (alarm central, controller, indicator etc.) to technical outputs of the
PSU:
-
BS
output indicating failure of 230V network.
The BS technical output is isolated from frame (-) during proper operation of the PSU, and in case of 230V AC
supply decay the output is shorted to frame (-) after the period of time set by Z1 and Z2 jumpers [5] (Tab.3)
-
AW
output indicating failure.
The AW technical output is shorted to frame (-) during proper operation of the PSU, and if any of the specified
reasons occur the output is isolated from frame.
7. By means of
Z3
and
Z4
jumpers (Tab. 4) set the battery disconnection time for the battery operation, if voltage
at the battery terminals drops below 10.5 V.
8. By means of
J1
and
J2
(Tab 5) jumpers set the battery charging current.
9. Switch on 230V AC power and insert the power fuse protecting the primary circuit of the transformer [15].
Check the optical signalling of the PSU operation.
The output voltage of the unloaded PSU shall be U
out
= 13,8V DC±0.1V
During the battery charging, the voltage shall be within the range U
out
= 11V÷13,8V DC
10. The battery shall be connected according to designations (by red (+) and black (-) colours).
