Securitron AQD3B - Manual (Page 4)

Page 4 P/N 500-30000
Rev. A, 04/13
2. Understanding the Power Module
Component
Label
Component
Name
Function
Fuse 250V AC Input Fuse
GMA-2 5mmx20mm 2A/250VAC fuse protects power module
from AC line power spikes.
CAUTION: Disconnect battery and AC input power before
replacing fuse. Use approved fuse size only.
LNG
AC –In
Terminal Block
A 3-wire terminal block for AC power input.
Handles 110-240 VAC. Accepts wire gauge 12AWG to 24AWG.
L= Line (+) N=Neutral G=Ground
AC LED
AC Power
Indicator
Green LED indicator is lit when AC power from AC circuit or
battery is ON. Indicator may be on board or on exterior of
enclosure.
AC FAIL AC Status Relay
A 3-wire terminal block providing a SPDT-Form C contact that
changes state when the AC power is interrupted. Provides
2amp@24VDC output for triggering alert notification
NO = Normally Open C = Common NC = Normally Close
The switch is NO/C open when energized, C/NC closed when
energized. During power loss, the switch changes state with NO/C
closed and C/NC open.
-DC OUT+
DC-Out
Terminal Block
A 2-wire terminal block for DC output voltage to devices, power
distribution or accessory board. DC output is Class 2 power
limited and accepts 10AWG to 24AWG wire.
-BAT+
Battery Backup
Plug
A 2-pin plug for connecting battery cables for uninterruptable
battery backup.
J1
Jumper 1
12/24VDC Output
Voltage Selector
A 4-pin jumper for output voltage selection.
Default setting is 12VDC = jumper on Pin 1 & 2 and jumper on Pin
3 & 4.
For 24VDC = jumper on Pin 2 & 3, jumper on Pin 4.
DC LED
DC Output Power
Indicator
Red LED indicator is lit when DC power is ON.
+LTW
Battery Limited
Time Warning
2 position header providing an open collector output from the
negative position to annunciate low battery. Default position is
Normally Open. Circuit closes to trigger a signal when battery falls
to 95% depleted. Terminal accepts 22-30AWG wire.
3. Select Output Voltage
Determine voltage of devices that will be powered by the power supply unit. The
AQD3 provides 2.8 amps continuous output at 12VDC or 1.4 amps @ 24 VDC.
The unit is factory set for 12 VDC.
To select 24 VDC, remove jumpers from both sets of pins. Reinstall one jumper
onto Pins 2&3.
CAUTION: CHANGE OUTPUT VOLTAGE SETTING ONLY WHEN AC
POWER, BATTERY AND OUTPUT LOAD ARE DISCONNECTED. Ensure
that the battery voltage matches the power supply output voltage
before connecting batteries.
J1
12V
J1
24V