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PSUPS10A12
10
3.3 Relay technical outputs.
If the OC type outputs are not sufficient to control the unit, it is possible to use the MPSBS relay module
changing technical outputs of the OC type to relay type.
Fig. 6. The diagram of connecting the MPSBS module.
4. Operation and use.
4.1 Overload or short circuit of the PSU output
The output circuit of the PSU is equipped with the electronic current protection. If the output voltage value
exceeds the acceptable threshold
– Imax, the PSU output will be disconnected. The disconnection will be indicated by
the AUX, AUX1, AUX2 and AUX3 diodes going out. Reactivation of the voltage will be automatic after disconnecting the
receivers from the output.
Additionally, the AUX1, AUX2, AUX3 outputs are protected separately, with the use of PTC polyswitches. If the
load exceeds 2,5A, there will be an automatic disconnection of the output voltage indicated by the AUX1, AUX2 or AUX3
green diode going out. Restoring of the output voltage requires cutting off the output load for at least 1 minute.
In case of a short circuit at the AUX, BAT output or reverse battery connection, the F
BAT
fuse in the battery circuit
becomes permanently damaged and the restoration of the voltage at the BAT output requires the replacement of the
fuse.
4.2 Overload or short circuit of the recorder’s module or CCTV camera module
The modules of the recorder and CCTV cameras are protected against a short circuit by fuses (fuse-elements). In
case of fuse replacement, use a replacement of the same parameters, in conformity with specific norms and power
balance.
4.3 Running the PSU from the battery.
The power supply is equipped with the button on the PCB allowing to run the PSU from the battery, when
needed. To do that, press and hold the
START
button on the unit board for 1 second.
4.4 Deep discharge battery protection UVP.
The power supply is equipped with deep discharge battery protection (UVP). If the voltage at the battery terminals
drops below 10V±0.5V during battery-assisted operation, the batteries will be disconnected.
The battery protection is
on when the P
BAT
jumper is off.
Caution.
It is not recommended to disable UVP since deep discharge of the batteries reduces their ability to store
energy, their capacity and lifetime.
4.5 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 dust,
clean the interior with compressed air. In case of fuse replacement, use a replacement of the same parameters.
