www.pulsar.pl
AWZ521
5
Typical application AWZ521 (fig.3).
Fig.3. PSU module connection: 12VDC camcorder and 230VAC heater in an external enclosure.
2.2 Installation in a CCTV camera enclosure
1. Before installation, make sure that the voltage in the 230V power-supply circuit is cut off.
2. Dismantle the original thermostat and the terminal strip from inside the enclosure.
3. Mount the PSU module by screwing it with the original cheese head screws (bolts) through the mounting holes.
4. Connect the heater’s cables to the HEATER 230V/AC N-H terminals.
5. Mount the camera’s enclosure in the intended place and lay the connection and signal leads through the cable
ducts.
6. Connect the power cables to the 230V/AC L-N terminals of the PSU module. Electric shock protection conductor
should be connected to the terminal marked with the ‘PE’ earth symbol on the camera’s enclosure.
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 ‘PE’
earth symbol in the camera’s enclosure. Operation of the camcorder without a properly made
and fully operational shock protection circuit is UNACCEPTABLE! It can result in device
damage or an electric shock.
7. Mount the CCTV camera (optionally with a lens) on the enclosure’s mounting plate.
8. Connect the 12V/DC output of the PSU module to the camera, using the intended connector.
9. Restore the main power supply and check (measure) the output voltages of the PSU module.
10. Check if the camera works properly, implement necessary adjustments.
11. Lock the camcorder’s enclosure.
Notes:
Lock the enclosure cautiously not to damage the cables from the inside.
3. Operating status indication.
•
12V/DC- red LED: indicates the DC supply status at the output of the PSU module. Under normal status,
the diode is permanently illuminated. In case of a short circuit or overload the diode goes out.
4. Operation and use.
4.1 Overload or short circuit
•
12V/DC outputs
In case of a short-circuit 12V/DC the output voltage is automatically cut off. The voltage is restored
automatically after limitation of current consumption, or removing the short circuit. In case of 12V/DC output
overload, the F2 fuse becomes damaged. Restoration of the voltage at the output requires replacement of the fuse.
