TWR Lighting E-1DB2, Руководство пользователя

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M.E-2009.E-1DB2
3/25/07 – rev. 5/28/09
E-1DB2 CONTROLLER
3.0 THEORY OF OPERATION
3.1 THE POWER SUPPLY
The AC line is sent to transformers T1, and T2 through fuse F2, MOVMOD1, and
relay K1. In order for K1 to energize and complete the circuit to T1, the safety
interlock switch CSS, BSS, must be closed. The BSS switch is located in the
beacon. In order for the system to operate, the beacon and the power supply must
be closed and secured.
Transformer T1 secondary output is around 1,100V AC. These outputs are sent to
the high voltage rectifier PCB (PCB #2) and converts the 1,100V AC to around
+550V DC and -550V DC in daymode, and +750V DC and -550V DC in nightmode.
This high voltage is then used to charge the energy storage capacitor C102 through
current limiting resistors R31, T3 and steering diode D5 for nightmode operation.
Energy storage capacitors bank C103-110 is used for the daymode operation and
are connected to the high voltage through the normally closed contacts of relay K5.
When the light level drops below 3 foot candles the photocell supplies 120V AC to
relay K5, which removes C103-110 from the discharge path leaving capacitor C102
in the circuit for nightmode operation. The energy storage capacitor banks are
connected to the flashtube through the interconnecting tower wiring.
3.2 THE FLASHTUBE
The flashtubes FT1 (daymode) and FT2 (nightmode) are quartz tubes containing
two (2) electrodes each. The electrode at the positive (+) end is called the anode
and is connected to the positive side of the storage capacitors through inductor L1,
and L2. The electrode at the negative (-) end of the tube is called the Cathode and is
connected to the negative side of the energy storage capacitors banks.
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