E-2/3DB CONTROLLER
E:\Documents and Settings\Administrator\Local Settings\Temporary Internet Files\OLK3\E2-3DB.doc
Rev. 01/13/00; Rev. 07/2000 o2L/H
Rev. 10/2000 (dwgs. 100239, 601, 601-01, 601-02, H02-258, 100031, 279L, 274S, 100089)
Rev. 06/21/00 (Reformatted Text; Revised Pg. 3 (2.4.1, 20 amp to 30 amp)
Pg. 14
3.5 ALARM CIRCUITS
3.5.1 White Strobe Failure (ST1, ST2, and ST3)
White Strobe Failure alarm circuit monitors each flash of the day
mode flashtube within the beacon. If the flashtube fails to flash (for
any reason) the alarm circuit operates relays K7A, K7B, and K7C (on
PCB #3) that the customer can connect to their alarm transmitting
devices. The alarm point can be accessed on J3 of PCB #3.
3.5.2 Red Strobe Failure (RF)
Red Strobe Failure alarm circuit monitors each flash of the night
mode flashtube within each beacon. If any Red Strobe flashtube fails
to flash (for any reason) the alarm circuit would operate relay K8 (on
PCB #3) that the customer can connect to their alarm transmitting
devices. The alarm point can be accessed on J3 of PCB #3.
3.5.3 Power Failure (PF)
The power failure alarm relay is energized during normal operation.
Should the power be removed for any reason, then relay K1A would
drop, creating an alarm for the customer alarm transmitting device.
3.5.4 Photocell (PC)
The photocell alarm relay K4 is energized whenever the photocell or
SW3 is on. This relay will allow the customer to monitor the modes of
operation to determine if switch from day to night mode has occurred.
3.5.5 Sidelight Alarm (SA1, and SA2)
Modules M1, and M2 monitor the current flowing to the sidelights.
These modules can monitor from (1-4) 116W lamps. Factory setting
is generally for three (3) lamps. When the current falls below two (2)
amps (one [1] lamp less than the factory setting), then the onboard
relay will engage, creating an alarm.
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