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PSBEN5012C
17
7. Installation.
7.1 Requirements.
The buffer PSU is to be mounted by a qualified installer, holding relevant permits and licenses (applicable
and required for a given country) for 230V/AC interference and low-voltage installations. The unit should be
mounted in confined spaces, in accordance with the II environmental class, with normal relative humidity (RH=90%
maximum, without condensation) and temperature from -10°C to +40°C. The PSU shall work in a vertical p osition
that guarantees sufficient convectional air-flow through ventilating holes of the enclosure.
As the PSU is designed for a continuous operation and is not equipped with a power-switch, therefore an
appropriate overload protection shall be guaranteed in the power supply circuit. Moreover, the user shall be
informed about the method of unplugging (most frequently through separating and assigning an appropriate fuse in
the fuse-box). The electrical system shall follow valid standards and regulations.
7.2 Installation procedure.
CAUTION!
Before installation, cut off the voltage in the 230V power-supply circuit.
To switch off power use an external switch in which the distance between the contacts of all poles in the
disconnection state is not less than 3mm.
1. Mount the PSU in a selected location. It is crucial to bolt the tamper grip to the mounting surface. The grip is
located in the central part of the enclosure (see fig. 3 [7]) and guarantees indication in case of any attempts of
detaching the device from the mounting surface. Proper installation is one of the requirements of the PN-EN
50131-6 standard.
Fig. 15. Fixing a tamper grip.
2. Connect the power cables (~230Vac) to L-N terminals of the PSU. Connect the ground wire to the terminal
marked by the earth symbol: PE. Use a three-core cable (with a yellow and green PE protection wire) to make the
connection. Lead the cables to the appropriate terminals through the insulating 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 PE symbol on the PSU
enclosure. Operation of the PSU without the properly made and fully operational shock protection circuit
is UNACCEPTABLE! It can cause a device failure or an electric shock.
3. Connect the receivers’ cables to the +AUX, -AUX connectors of the terminal block on the PSU board.
4. If necessary, connect the device’s leads to the technical inputs and outputs:
- EPS FLT; technical output of AC power loss indication (alarm panel, controller, indicator, etc.)
- PSU FLT; technical output of the PSU failure.
- APS FLT; technical output of the battery failure.
- TAMPER; output indicating enclosure opening or detaching from the assembly surface.
- EXT IN; collective failure output
5. With the I
BAT
jumper determine the maximum battery charging current, in accordance with the battery
parameters.
6. With the P
BAT
jumper determine if the discharged battery disconnection system U<10V (+/-5%) shall be on or off.
The battery protection is on when the P
BAT
jumper is removed.