YASKAWA AC Drive GA700 High Performance Type Technical Manual
No.
(Hex.)
Name
Description
Default
(Range)
L8-27
(04DD)
Overcurrent Detection Gain
Sets the PM motor overcurrent detection level as a percentage of the motor rated current value.
300.0%
(0.0 - 1000.0%)
If the setting value for L8-27 is the same or almost the same as the setting value for L7-xx [Torque Limit], the drive can detect oC2 [Overcurrent2].
Set L8-27 = 0.0 Hz to disable this function. Usually do not set L8-27 = 0.0.
If the drive rated current is much higher than the motor rated current, PM motor magnets can demagnetize when current flows at the drive overcurrent detection level. When you set a low overcurrent detection level to prevent PM motor demagnetization, make sure that you adjust L8-27.
