The Commercial Kitchen Energy Monitoring fan and controller have multiple environmental sensors, such as
Temperature of fan motor
Fan motor current sensors
Other backup sensors
These provide fan telemetry data to the brains of the system, a low power full computer that makes constant second by second decisions on how the system is performing. If a issue is found the system will adapt the fan motor settings in order to limit current beyond a safety limit. It notifies our 24 hour control room and allocates an engineer to change the faulty part or fix the problem.
The fault can require a complete change of fan or a simple motor change.
All of this happens at any time of day or night. Our system can notify a set list of people that the fan has an issue and requires attention.