Delta Electronics Elevator Drive VFD-VL User Manual page 140

Chapter 4 Parameters|
This function is used for searching magnetic field position and only for permanent magnet
motor.
When it doesn't have origin-adjustment for encoder (Pr.08-09 is 360.0), it can only ensure that
the motor operation efficiency can be up to 86% of the best efficiency. In this situation, when
the operation efficiency needs to be improved, user can re-power on or set Pr.08-10 to 1 to get
the magnetic field orientation.
Revision Nov. 2008, VLE1, SW V1.03 4-85