EC temperature control for intelligent, temperature-dependent fan speed control

For fans from ebm-papst Mulfingen and fans from ebm-papst St. Georgen with analog
control input. Its patented appearance matches the 10VDC output of the EC fan and
does not require a separate power supply.
The fan can be controlled within the temperature range between 0% and 100%
and also issues a fan error, overtemperature and sensor error message.
If this alarm is issued, this temperature controller cannot ensure the maximum
speed. Significant energy savings are possible with this temperature controller.