www.pulsar.pl
PSBEN2012B/LCD
BLACK POWER
21
5.8 Enclosure Tamper Indication - TAMPER.
The PSU is fitted with the micro switch tamper indicating enclosure opening and detaching from the
mounting surface.
The tamper cable is not connected to the terminal in the factory settings. In order to activate tamper,
remove the jumper from tamper terminal (Fig. 2 [14]) and plug in the tamper cable.
Each opening the enclosure and detaching from the mounting surface will generate a failure signal at the
PSU FLT and ALARM technical outputs and will save the event in the internal memory of the PSU.
5.9 Overvoltage protection of the PSU output OVP.
In case of voltage exceeding 15,5V±0.5V at the switching regulator’s output, the system cuts off the
power at the outputs to protect the battery and the receivers from damage. The outputs will be battery-powered.
The activation of the protection system is indicated by the OVP yellow LED on the PCB board, and the PSU FLT
output.
5.10 PSU overload.
The PSU is fitted with the LED OVL (overload) on the PCB informing about output overload. If the nominal
current of the PSU is exceeded, the led turns on and the microprocessor starts a specially implemented
procedure. Depending on time and overload level, microprocessor may disconnect the AUX output and switch into
the battery-assisted operation. Restart will occur after 1 minute.
PSU overload is indicated by the PSU FLT technical output.
