Securitron AQD5B - Manual (Page 6)

Page 6 P/N 500-30010
Rev. A, 04/13
8. Wiring for Limited Time Warning/Low Battery
The diagram shows wiring to an access system controller to provide low battery
warning.
The switch changes state from NO/C to C/NC when battery voltage drops to
12.1VDC or 24.2 VDC
9. Turn on AC Power
After making electric connections, turn on AC power before installing batteries.
C. Install Batteries
1. Understanding Battery Charging and Backup Power
The AQD5B is a backup battery charger with automatic fail over to battery power in case of primary AC
power failure when batteries are installed and connected to the power module. The use of battery backup is
optional—the unit will function without batteries installed, but no internal backup power will be available in
case of AC power failure.
Note: The battery circuit features automatic disconnect when the battery output falls to 9.8 VDC/19.6 VDC
to prevent deep discharge and also protects the power module in case the battery is connection is reversed.
IMPORTANT: Battery configuration must match the DC output voltage setting.
For battery backup in 12VDC operation, a single 12V battery may be used, or two (2) 12V batteries may be
used wired in parallel for longer run time.
Backup power run time depends on the continuous output needed to support the load and the ambient
temperature at the enclosure. Estimates are provided in the table below:
Estimated Standby Time (3 amp/5 minute reserve for alarm)
Total Output
Amps
4Ah Battery
Standby
7Ah Battery
Standby
12Ah Battery
Standby
24Ah
Standby
40Ah
Standby
.5A 5.5 Hrs 12 Hrs 20 Hrs 40 Hrs 65 Hrs
1A 2.5 Hrs 5 Hrs 9 Hrs 19 Hrs 32 Hrs
1.3A 2 Hrs 4 Hrs 7.2 Hrs 15.5 Hrs 24 Hrs
2A 1 Hrs 2 Hrs 5 Hrs 10 Hrs 15 Hrs
3A .5 Hrs 1 Hrs 3 Hrs 6 Hrs 9.5 Hrs
4A .5 Hrs .8 Hrs 2 Hrs 4 Hrs 8 Hrs
5A NA .6 Hrs 1.4 Hrs 3 Hrs 7 Hrs
6A NA .4 Hrs 1 Hrs 2 Hrs 4 Hrs
Charge current is not less than 250mA @12VDC at peak load.
NO C NC
Trouble
Access Control
System Panel