i want to measure the actual load of a 1.5 kW three-phase asynchronous motor.
The motor is driven by a frequency converter. This converter generates 0-10 V Signal of the actual load. That works good. In the most of time the motor has to drive a load. Sometimes the load is negative and the motor has to break the load to the desired speed and i want to know that. But the converter has no signal about the pos or neg load (1,2 quadrant).
How is it possible to measure that? Maybe is there a phase shift or … ?