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Once installed and commissioned no further involvement is required for normal
operation. Under normal conditions with AC mains applied, the power supply will provide
a continuous load current of up to 150mA whilst the intelligent battery management
automatically charges, tests and maintains the installed battery pack. Should a fault
occur, the relevant fault signal will be activated, and in-built diagnostic LEDs will provide
additional information regarding the type of fault detected. The unit will continue normal
operation once the fault has been rectified.
Should a loss of mains occur, the unit will flag a fault and seamlessly switch to the battery
pack for power, with the unit capable of running for up to 30hrs (dependent on load and
battery pack installed). Should the battery pack become depleted before mains power is
re-applied the Alternative Power Supply (APS) fault will be flagged to indicate battery
power is very low, occurring a few minutes (dependent on load, battery pack and other
conditions) prior to the battery pack disconnecting and all power to the load being
dropped.
Once mains power has been restored, power to the load from the power supply will
automatically be provided and the battery pack will start to be recharged as required
(subject to environmental conditions).
For monitoring, three independent output signals are provided to indicate, loss of AC
power fault (EPS), battery fault (APS), and power supply fault (GEN).
Comprehensive self-diagnostics give detection of:
•blown output fuse
•battery disconnection
•battery fault
•low battery voltage
•low output voltage
•battery charger only operational between 3°C and 50°C
Monitoring functions are described in the Signalling Outputs section.
Comprehensive protection is built-in as standard to include:
•AC power transient filtering
•electronic output overload protection
•fuses on the load and battery outputs
•deep discharge protection
•brownout filter to prevent false loss of AC power fault (10 seconds)