The system is controlled by a series of control cabinets containing five powerful frequency converters and a PLC. The frequency inverters can continuously control the two fans of the cooling towers and three pumps. The temperatures of the incoming and outgoing water as well as the fill level of the collection tank, the data from a contact water meter and a conductivity measurement are recorded. There are also various valves in the system that can be controlled by the PLC. This means that the system can be operated fully automatically.
The fans also have vibration protection switches that can automatically detect excessive vibrations.