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2.14 WRS Cell Detail (Watchdog / Relay - Supply Cell)
Cell type WRS is used to provide:-
WR cells are equipped with a four channel relay card which provide
• Four Common Relays which can be programmed for use as horn, common alarm or
watchdog relays
• Each of the output contacts can be set to N/C or N/O using a 3 way header and 2 way
shorting bar located on the card.
• The non-alarm coil state of each relays can be programmed to be either EN or DE-EN
• Universal Input Power Supply capable of accepting:-
• AC voltages in the range 85-264VAC or
• DC voltages in the range 88-300VDC
• The Power Supply card is located in the upper card slot and the common relay card is
located in the lower card slot as typically shown above.
• The power supply is suitable for use with a number of cells which varies depending on
the window size and options required
• Multiple power supply cards can be used in larger annunciators as required.
• Fuse FU-2A-05, (5 x 20 mm), 2A-T Fuse is used to protect the primary supply for voltages
less than or equal to 150V AC/DC.
• Fuse FU-0.5A-05, (5 x 20mm) 0.5A-T Fuse is used to protect the primary supply for
voltages greater than 150V AC/DC
WARNING !
The unit is fitted with a 0.5A primary input fuse as standard. This fuse should
only be changed for lower supply voltages in accordance with the details
above.
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