Chapter 12 Descriptions of Parameter Settings | VFD-ED
Back Electromotive Force
Control Mode
FOCPM Default: 0.0
Settings 0.0–6553.5 Vrms
 Sets the back electromotive force (phase-phase RMS value) when the motor is operated at the rated
speed.
 You can get the RMS value by setting Pr.08-00 = 2 (Motor Auto-tuning).
Offset Angle between Magnetic Pole and PG Origin
Control Mode
FOCPM Default: 360.0
Settings 0.0–360.0°
 The offset angle between the magnetic pole and PG origin (measured by auto-tuning).
Magnetic Pole Re-orientation
Control Mode
FOCPM
Default: 0
Settings 0: Disable
1: Enable
 Use with Pr.11-00 bit15 = 1.
 Use this function to search for the magnetic pole position only for permanent magnet motors.
 When there is no origin-adjustment for the encoder (Pr.08-09 is 360.0), it only ensures that the motor
operation efficiency can be up to 86% of the best efficiency. In this situation, if you need to improve the
operation efficiency, cycle the power or set Pr.08-10 to 1 to measure the magnetic pole orientation again.
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