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PSDCSEP04124
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2.2 Installation procedure.
1. Before installation, make sure that the voltage in the 230V power-supply circuit is cut off.
2. Mount the PSU in a selected location and connect the wires.
3. Connect the power cables (~230VAC) to L-N terminals of the PSU. Connect the ground wire to the terminal
marked by the earth symbol. Use a three-core cable (with a yellow and green PE protection wire
) to make the
connection. Lead the cables to the appropriate terminals of the connection board through the bushing.
The shock protection circuit shall be performed with a particular care, i.e. the yellow
and green wire coat of the power cable shall stick to one side of the terminal marked with the
‘
’ earth symbol in the PSU enclosure. Operation of the power supply without a properly
made and fully operational shock protection circuit is UNACCEPTABLE! It can result in
device damage or an electric shock.
4
. Connect the receivers’ cables to the
AUX1…AUX4
connectors
on the
LB4/SEP strips.
5. In electrical installations with significant voltage drops in the resistance of the wires that lead to the receivers, the
voltage value can be corrected with the P1 potentiometer
(12V÷15V DC).
6. Check the PSU operating status indication
7. Once the installation and operation control have been completed, the enclosure can be locked.
3. LED indication.
The power supply is equipped with 4 green L1 ÷ L4 LEDs on the PCB indicating the presence of DC voltage
at the AUX1 ÷ AUX4 outputs. During normal operation, the LED lights continuously, in the case of a short circuit or
overload, the LED is off.
4. Operation and use.
4.1. Overload or short circuit at the PSU output.
The AUX1 ÷ AUX4 PSU outputs of the LB4 strips are protected against a short circuit by glass fuses. If a
fuse-assisted protection has been chosen, replace the fuse (of the same parameters) in case of a failure.
4.2. Maintenance.
Any and all maintenance operations may be performed following the disconnection of the PSU from the
power supply network. The PSU does not require performing any specific maintenance measures. However, in
case of significant dust level, clean its interior with compressed air. In case of a fuse exchange, use the
replacement of the same parameters.
