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The
PDD-FT transfers the input power from the normally ON
output pair “-N/ON+” too the normally OFF output pair “-N/OFF+” when
triggered. The unit is triggered when
the supervised (EOL), end of line resistor is opened or shorted.
The triggered form C user contacts indicate
the state of the trigger. A typical
application of the PDD-FT is to place a distribution board on one or
both of
the outputs, one of our power supplies on the Input, then connecting
the EOL at
a fire alarm panel to transfer the power from one distribution board to
another
when the Fire alarm panel is in the alarm condition. The
transferred power would be used to unlock
doors, shut down air systems, or return elevators to an exit floor.
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Input
Power “-INPUT+”: 2 Pos. Terminal block with self
clamping screws will accept multiple 12awg wires – Universal input
10-29vdc. The input current is 70ma to
control relays plus whatever output load is.
The positive side of the power is connected to the swing arm of the
transfer relay which directs the power to the proper output.
Output
Power: 4 Pos. Terminal block Self clamping screws will
accept multiple 12awg wires. “-N/ON+” are normally ON output
power.
This output is ON when the PDD-FT is not
triggered. “-N/OFF+” is normally OFF. This output is ON
when this unit is
triggered. The transfer relay is rated
at 15A@12v and 12A@24vdc.
Power
LED’s: A red
led above each output indicates which ouput is ON.
Input
Trigger EOL: 2 Pos. Terminal block – Will accept
14-28awg wire. This input must see the
2.2K ohm end of line resistor to be in the normal set condition.
A change in resistance of + or – 60% will
cause the trigger relays to drop out in the Triggered mode. This
change in resistance is caused by the
supervised wire between the EOL at the
Fire
panel and the PDD-FT being shorted or opened. The EOL supervises
the pair of wires.
Input
Trigger OVR: 2 Pos. Terminal block - Will accept
14-28awg wire. This pair is normally
closed, can be connected to an override switch.
When OVR is open, unit will trigger.
Input
Trigger AUX-IN: 2 Pos. Terminal block - Will accept
14-28awg wire. This pair is normally
closed and can be connected to an auxiliary device. When AUX-IN
is open, unit will trigger.
RESET
2 Pos. Terminal block – Will accept 14-28awg
wire. When this pair is shorted, input
triggers do not latch. If pair is open,
the input triggers will latch until alarm is corrected and RESET is
momentary
closed to reset trigger.
Jumpers
RST – OVR – AUX are jumpers with handles to short
adjacent terminal blocks that are not used.
You may move the jumper to one header to open short to enable adjacent
terminals.
Jumper
GRN – This jumper is used to enable ground
supervision in the inputs. If the jumper
is connected to both headers, and the mounting hole adjacent to jumper
is
connected to ground with a star washer, a ground on any of the input
triggers will cause a
trigger.
Trigger
Status Terminal block - Will accept 14-28awg
wire. Form C Contact with a 3 Amp rating
will indicate the condition of trigger.
C and NO are normally open in the normal energize not triggered
state. C and NC are normally closed in
the normal energized not triggered state.
These contacts may be used to provide feedback to the FACP or other
annunciating devices.
The
PDD-FT is available as a module or mounted in an
enclosure with any of our DC Power Supplies.
Module
dimensions .......... 2.23”W x 3.75”L x .8”H
Mounting
holes dimensions .... 1.89” x 3.41”
Weight:
.................... 2.2oz |
Electronic
Security Devices Incorporated 3/27/04 jdb