What is the accuracy of ULN (Line Voltage) in Altivar 71.
Line voltage of the drive, ULN is calculated according to the DC bus voltage. It is not a measurement of the input.
The accuracy depends of the type of application (motor mode or generator mode, with or without load).
According to the situation:
- Optimal accuracy when no load or no motor current is 5%.
- When load apply on motor, accuracy is around 10-15%.