User manual

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5. MAXIMUM POWER CAPACITY
The maximum capacity of the PowerBox Sensor is stated in the specification (3
to 5A), but please note that this does not refer to the maximum performance of
the PowerBox Sensor’s voltage regulator, as it varies according to the efficiency
of the cooling measures. To achieve good cooling (and therefore high performan-
ce) we have fitted a blue anodized heat-sink on the back of the PowerBox Sensor.
The heat-sink is recessed into the switch case to ensure that this component
cannot be completely covered even if the switch is not mounted in an unfavourab-
le position.
Please ensure that waste heat can be dissipated freely via this heat-sink.
The electronic components are designed for a maximum regulator capacity for at
least 12 A. If this level is exceeded, the PowerBox Sensor does not switch itself
off.
The same applies if the voltage of the batteries falls below 5.9 Volts; this also
does not cause the PowerBox Sensor to switch itself off, the remaining voltage
available is always passed through to the receiving system.
If you notice that the PowerBox Sensor becomes hot in use (above 60° Celsius),
this is a reliable indication that the servos you are using are consuming a dispro-
portionate amount of power. Please check your servos, pushrods, linkages etc.
If the receiving system is in good condition, you can remedy the situation either
by re-positioning the PowerBox Sensor in a location with a better air-flow, or by
replacing the unit with a PowerBox Gemini II or BaseLog, which are designed for
higher-current applications.