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Delta Electronics Elevator Drive VFD-VL User Manual

Page 140

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Chapter 4 Parameters|

Revision Nov. 2008, VLE1, SW V1.03 4-85

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.