ULXB Power Supply/Chargers
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Wiring:
Use 18 AWG or larger for all low voltage power connections.
Note: Take care to keep power-limited circuits separate from non power-limited wiring (120VAC, Battery).
Maintenance:
Unit should be tested at least once a year for the proper operation as follows:
Output Voltage Test: Under normal load conditions, the DC output voltage should be checked for proper
voltage level.
Battery Test:
Under normal load conditions check that the battery is fully charged, check specified
voltage (12VDC @ 13.2 or 24VDC @ 26.4) both at the battery terminal and at the
board terminals marked [– BAT +] to ensure that there is no break in the battery
connection wires.
Replacing Batteries:
Disconnect existing batteries. Connect battery to the terminals marked [– BAT +].
Use two (2) 12VDC batteries connected in series for 24VDC operation.
LED Diagnostics
(AL400ULXB2 and AL600ULXB)
:
Red (DC)
Green (AC)
Red (BAT)
Power Supply Status
ON
ON
ON
Normal operating condition.
ON
OFF
ON
Loss of AC. Stand-by battery is supplying power.
OFF
ON
OFF
No DC output, Battery Trouble.
OFF
OFF
OFF
Loss of AC. Discharged or no stand-by battery. No DC output.
ON
ON
OFF
Battery missing / Low.
LED Diagnostics
(AL1012ULXB and AL1024ULXB2)
:
Red (DC)
Green (AC)
Power Supply Status
ON
ON
Normal operating condition.
ON
OFF
Loss of AC. Stand-by is battery supplying power.
OFF
ON
No DC output.
OFF
OFF
Loss of AC. Discharged or no stand-by battery. No DC output.
Terminal Identification:
Terminal Legend
Function/Description
L, G, N
Connect 115VAC to these terminals: L to hot, N to neutral (Fig. 1a, pg. 4).
+ DC – **
AL400ULXB2:
12VDC @ 4A or 24VDC @ 3A continuous output
(Power-Limited output) (Fig. 1d, pg. 4).
AL600ULXB:
12VDC or 24VDC @ 6A continuous output
(Non Power-Limited output) (Fig. 1d, pg. 4).
AL1012ULXB:
12VDC @ 10A continuous output
(Non Power-Limited output) (Fig. 1d, pg. 4).
AL1024ULXB2: 24VDC @ 8A continuous, 10A in alarm (UL1481).
24VDC @ 10A (UL294) (Non Power-Limited output) (Fig. 1d, pg. 4).
AC FAIL
NO, C, NC
Used to notify loss of AC power, e.g.connect to audible device or alarm panel.
Relay normally energized when AC power is present. Contact rating 1A @ 28VDC.
AC or brownout fail is reported within 1 minute of event.
To delay reporting for up to 6 hrs., cut “AC Delay” jumper and reset power to unit
(Fig. 1b, pg. 4).
BAT FAIL
NO, C, NC
Used to indicate low battery condition, e.g. connect to alarm panel.
Relay normally energized when DC power is present. Contact rating 1A @ 28VDC.
A removed battery is reported within 1 minute.
Battery reconnection is reported within 1 minute.
Low battery threshold: approximately 21VDC (Fig. 1b, pg. 4).
+ BAT – ***
Stand-by battery connections (Fig. 1c, pg. 4).
AL400ULXB2, AL600ULXB, AL1012ULXB maximum charge current 0.7A.
AL1024ULXB2 maximum charge current 3.6A.
** AL1012ULXB terminals marked [– DC +]
*** AL1024ULXB2 terminals marked [– BAT +]
