Connection
(Please consult the connection plan for your device!)
4. Input Battery Temperature Sensor (Optional)
Connection for the external VOLTIMA temperature sensor which measures
the battery temperature of the MAIN supply battery “I” for battery protection
and battery control.
• Connect the sensor to the terminal „Temp. Sensor“.
• Ensure that the installation place of the sensor is not exposed to any
sources of heat (engine block, exhaust, heater etc.)!
Lead-Acid, Gel, AGM Batteries:
Installation: The thermal contact of sensor and battery inside temperature
should be well. Thus, it should be screwed down to the negative pole or
positive pole of the battery. It is also possible to fasten it at the sidewall
centre of the battery casing.
Effect: The temperature-dependent charging voltage of battery I will be
adapted automatically to the battery temperature (automatic temperature
equalization). The temperature sensor measures the battery temperature.
In case of low temperatures (e.g. winter), the charging voltage will be
increased, in order to improve and accelerate full charging of the weak
battery. Sensitive consumers are protected by a limitation of the voltage in
case of very low outside temperatures.
In case of warm temperatures, the charging voltage is reduced to minimize
the load (gassing) of the battery and to extend the lifetime of gas-tight
batteries.
Battery Protection: In case of excessive battery temperatures (from
+50°C), the charging voltage will be reduced strongly to safety charging
voltage, approx. 12.80V, for battery protection and the maximum charging
current rate will be halved and safety mode, LED „MPP“ is flashing (SCD
12 : „Charge“). Any charging data being recorded will be kept in memory.
Battery charging is then interrupted but the supply of connected consumers
will be continued by the solar controller, and the battery is allowed to cool
down. After that, automatic charging will be resumed
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