obsta OBSTAFLASH Led, Инструкция по установке и эксплуатации

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SECTION 2 : PRINCIPLES OF OPERATION
2.1 Power supply P/N 113733
The main power input is converted in 48VDC through the AC power supply that feeds the command
card.
2.2 Power cards P/N 113741
The system includes 14 power cards that regulate the current sent to the 24 white led circuits and 2 red
led circuits as per figure 2-2:
- 12 power cards for white led circuits: each card regulates the current of 2 white led circuits of
the same projector during daytime;
- 2 power card that regulates the current of the 2 red led circuits during night time; each red led
circuit is in serial with 3 projectors.
Those 7 power cards are connected to the command card through connector. The status of the
command cards and their respective led circuits are indicated by the luminous indicators D6 to D12
on the command card (figure 2-1 below). Those indicators are normally off and red blinking in case
of default.
2.2 Command card P/N 113744
The command card is powered in 48V and allows to:
- monitor the 7 power cards,
- change the color and light intensity between day time and night time,
- select master or slave mode of the system (dipswitch 1). Without external synchronization signal,
the card is set up in master mode. In case of GPS or other sync interface, the card is set up in slave
mode.
- select the configuration of the lights during day time and night time: dual color, white only or red
only,
- detect the alarm of the complete system with 9 luminous indicators described in figure 2-1,
- select the flash rate 20 or 40 flash per minute (dipswitch 3) in case master mode is selected.
Note: The configuration of this card is done in the factory and shall not be
modified by the end-user.