IAQ or Indoor air quality is not merely a matter of how the environment feels (temperature and humidity), polluted indoor air has a direct impact on our health and well-being. This control solution controls the AC fan speed in function of the measured air quality (TVOC level), temperature and / or relative humidity level. These three ranges can be adjusted via Modbus RTU. By narrowing the range, it is possible to prioritise this parameter. In case a the motor is equipped with an integrated temperature sensor in the motor windings (TK or PTC), the motor temperature is monitored on continuous base. As soon as the motor temperature becomes too high, the motor is disabled to protect it from breaking down. The power supply provides extra protection against short circuits and overload at the 24 VDC side. This control solution is designed for three phase 230 VAC motors with a maximum current of 2,3 A
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