Securitron AQD3 - Manual (Page 2)

AQD3 Series Installation continued
AQD3 Series Instructions: Doc.# 500-33000 Rev A
Page 2 of 15
Description
The AQD3 Series Power Supplies are heavy duty self contained, efficient clean off-line switching power supplies that
are selectable between 9.8Vdc-13.7Vdc at 2.8 Amps, and 20.0Vdc-27.5Vdc at 1.4 Amps. With the universal AC input,
these supplies may be connected anywhere in the world with no plug-in transformer or any alterations. These power
supplies have exceptional brown out capability with operation down to 60vac. The extensive filtering system provides
a very clean DC output that can power the most sensitive electronic controls and reader where a linear power supply is
recommended. All of the supplies are power limited and thermally protected. All output faults are self restoring.
The AQD3 series have a precision lead acid battery(s) charger that obtains maximum battery life while providing a
9.8Vdc-13.7Vdc or 20.0Vdc-27.5Vdc uninterruptible power supply. The AQD3 Series are protected against Battery(s)
reversal, shorting or overloading. Before connecting AC and battery(s), set 12v/24v selector jumpers to the desired
voltage. Caution, damage will occur if jumpers are moved with DC output load or Battery connected. Confirm proper
voltage before connecting devices.
The AQD3 has the additional supervisory features of a set of form “C” relay contacts that indicates AC power status
and a special electronic circuit that limits the output current to provide power limiting and load disconnect when battery
is depleted
Specifications
AC Input: L, N, G - 3P Orange Terminal block
Safety block with recessed hardware insulation that will
accept up to 12AWG
L= Line, N= Neutral, and G = Ground
AC Input Rating ................. 110-240vac/47-63Hz 130W
Note: The Ground connection on the AQD3 is
connected to the enclosure back with a metal stand off.
In the case of enclosures with a removable lid, a
ground wire is used to ensure the ground continuity to
the lid. If lid is removed, this ground wire must be
reconnected securely.
AC LED Indicator (Next to AC Input Terminal)
The AC indicator is a green LED, which is illuminated
when AC is present.
AC Line Primary Fuse
Fuse: ....................... GMA-2 5mm x 20mm 2A 250Vac
Replace this fuse only while the equipment is
electrically disconnected from the branch-circuit
supply. The proper size 2A fuse must be used.
DC VOLTAGE SELECTOR JUMPER J1
The selector jumper J1 selects the voltage to 12v or
24vdc. As marked on the PCB, jumping 1&2 and 3&4
sets the supply to 12v range. Jumping 2&3 sets the
supply to the 24v range. CAUTION To prevent
damage, remove DC load and battery(s) connections
before switching selector J1 jumpers
DC OUTPUT: 2P Terminal block
Output voltage Range 12v/24v
........................9.8Vdc-13.7Vdc/20.0Vdc-27.5Vdc
Output voltage typical AC ON ..................... 13.65/27.30
Output continuous current 12v/24v ................. 2.8A/1.4A
Output ripple & noise @ 80% load .......... 10mv rms Typ
Current Overload Short Circuit Protection .............. Yes
Thermal runaway Protection ..................................... Yes
Current Overload and Thermal shutdown will auto-
restart without removing load.
Power limiting .......................................................... Yes
Ambient operating temp. range -32
o F(0 o ) to 120 oF (49 o C)
Storage Temperature ............................. -60 o F to 190 o F
Switching Frequency ....................................... 132KHz
DC LED Indicator
(Adjacent to DC Output) ...................
Red
Battery Connector: ....... (Header plug marked [–Bat+])
AQD3 only - The battery charger is precision set to
float charge 12v or 24V sealed or wet lead acid
batteries. Two 12v batteries are connected in series
for 24V with a provided wire assembly p/n: WA-24SW.
A 15” Battery cable assembly p/n: WA-15IBAT is
provided that plugs from module battery connector to
the battery. Red (+) 12vdc, Black (–) Neg. Each of
the 3 wires listed above that connect to the standby
Batteries are covered with a special clear tubing that
provides additional insulation to ensure proper
separation or Power Limited and NON Power Limited
wires.
Optional 36” battery cable (1) P/N: .............. WA-36IBAT
Battery(s), any type of lead acid ............. 12v 4AH-18AH
UL evaluated with 18AH on 12v and (2)-9AH on 24v
sealed lead acid battery(s). Expected life of batteries is
4-5 years. Some manufacturers are Power-Sonic, Jolt,
Yuasa, and Universal.
Battery(s) PTC self resetting Circuit Breaker ..... 3A PTC
Battery(s) Reverse hookup protection ...................... Yes
To estimate the recharge time in hours for depleted
battery(s), multiply the AH rating times 4 (AH x 4). As
an example, a 24v system with two depleted 12v 7AH
batteries would take about 28 hours to re-charge.