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DSOP24V
47
10. Installation.
10.1. Requirements.
The DSO should be mounted by a qualified installer, holding relevant permits and licenses (applicable and
required for a given country) for 230/400V AC and low-voltage installations. The installer should be trained in
commissioning and operation of the power supply system of the DSO by the Pulsar company.
The electrical system shall follow valid standards and regulations. The DSO cabinet should be mounted in
such a way to provide both front and rear access for service personnel. Always ensure a free, convection air flow
around the cabinet.
As the power supply unit of the DSO cyclically runs a periodic battery test, during which the connection
resistance is measured, special attention should be paid to the proper installation of the battery cables.
10.2. Installation procedure.
CAUTION!
Before installation, make sure that the voltage in the 230/400V power-supply circuit is cut off.
Selection of installation cables should take account §187 of the Regulation of the Minister of
Infrastructure on technical conditions to be met by buildings and their location, as amended on 12
March 2009.
1. The equipment should be installed in the appropriate compartments of the cabinet as described on the
labels.
2. Make additional connections (using a PE protective conductor) between the equipment enclosures and PE
plates.
3. Connect the 24V power supply cables to the appropriate equipment (amplifiers, controller, and routers) as
described in the cables.
4. Connect the technical outputs of the power supply to the DSO control panel when needed.
- ALARM; technical output of collective failure of the PSU
- EPS; technical output of AC power failure indication
- PSU; technical output of power supply failure indication.
- APS; technical output of battery failure indication
- EXTI; technical input of collective failure
5. Remove the battery fuse cover and then remove fuses from the sockets. Insert the battery in the
designated compartment of the enclosure. Connect the battery with the power supply board paying special
attention to the correct polarity. The battery should be connected in series using the special connectors
(included). Insert the fuses into the battery sockets, attach the circuits and install the protective cover.
6. Connect the temperature sensor plug by inserting the plug into the socket from the rear side of the power
supply (Fig. 16). The sensor should be placed between the batteries to properly measure their
temperature.
7. Connect the power cables (230/400V AC) to the L1-L2-L3-N contacts of the power supply (or L-N in the
case of a single-phase connection). Connect the ground wire to the terminal marked by the earth symbol
PE. Use a five-core cable (or three-core cable for a single-phase connection) with a yellow and green PE
protection wire to make the connection.
Fig. 46. Connection to the power system
– a single-phase 230V AC connection.