Nodes 5-26
Additional Information
Battery Charging Via PSU
Battery charging is controlled by the IntelliPower node. When the battery charge relay closes, the yellow LED
illuminates and the battery is charged at a voltage that is temperature compensated. To enable temperature
compensation, a thermistor with flying-lead connection is provided. It is important that the thermistor senses the
temperature of the battery only (and not other devices).
Therefore, if a single battery is in use, place the thermistor on top of the battery. If using two batteries, place the
thermistor between them. This provides a continual battery charge (4 and 6Amp PSU).
Battery Test
The battery test is carried out at the controller and at each IntelliPower node by simply unsetting/disarming the system.
Battery tests are run every two seconds on the system, and will report within 10 seconds.
Deep Discharge Protection
If mains power fails at any IntelliPower node, that node’s battery backup is switched on to provide power. A battery
can only maintain a supply for a certain duration and if mains/AC power is cut off for a prolonged period, the battery
will eventually discharge itself. In general, lead-acid batteries are damaged in terms of capacity and service life if
discharged below the recommended cut-off voltage.
To prevent a battery discharging beyond recovery, the IntelliPower node instructs the PSU to disconnect the battery
when the battery output voltage reaches 10.5Vdc. When the mains/AC is restored, the battery will be recharged.
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