®
APS-1012
POWER SUPPLY
aps1012_en 04/16
The APS-1012 power supply unit has been designed for use with 12 V DC electrical
installations (e.g. access control systems). Due to application of an energy-efficient pulse
power system, supplied directly from the mains with 230 V AC, the thermal losses have been
minimized, while the reliability have been enhanced. The APS-1012 has an input interference
filter and a power factor compensation system, as well as short-circuit and overload
protection of output.
Precision voltage control, microprocessor-based battery charge status control and automatic
cut-off of the battery function in case of its excessive discharge, enable the battery to be used
longer without any risk of being damaged. For operation with the APS-1012 it is
recommended to use the lead batteries 12 V 17 Ah. In the housing there is enough place to
install two parallel-connected batteries, 17 Ah capacity each. It enables to use the APS-1012
two time longer in case of AC power loss.
The APS-1012 is fitted with four LEDs, which indicate: the mains supply and battery
condition, current overload, and excessive temperature rise. The detected troubles are
signaled on the four OC type outputs and may be additionally signaled by the buzzer. During
normal operation of the APS-1012, the signaling outputs are shorted to ground (0V), but
when a fault occurs, the respective output is cut off from the ground. The tamper contact,
installed on the housing, makes it possible to include the APS-1012 into the tamper circuit of
the alarm system.
1. Power supply description
Four LEDs are provided on the power supply housing:
1
–
[
MAINS
]
(green):
ON – normal operation, with 230 V AC voltage present on the input,
OFF – no 230 V AC voltage or F1 fuse blown (3,15 A).
2
–
[
BATTERY
]
(green):
ON – battery voltage OK,
blinking – battery voltage drop below 11 V,
OFF – no battery or F3 fuse blown (10 A).
Note: If there is no load at the power supply output, the
LED indication can be
unstable. For a proper battery state indication, at least 200 mA load of the output is
required.
3
–
[
OVERLOAD
]
(yellow):
OFF– normal operation.
ON – current consumption in excess of 10 A.
4
–
[
TEMPERATURE
]
(red):
OFF – normal operation
blinking – elevated working temperature (above 45 °C) if there is no fan, or fan
trouble.
ON – dangerous working temperature (above 65 °C), which may cause
damage to the power supply unit.