|
No.
(Hex.)
|
Name
|
Description
|
Default
(Range)
|
|
b3-36
(0BC4)
Expert
|
High Back EMF Detection Level
|
        
Sets the voltage level for Speed Search restart. Usually it is not necessary to change this setting.
|
0.970
(0.500 - 1.000)
|
The drives wait for Speed Search to prevent failure when the induced voltage for the motor during coasting to a stop is larger than the voltage the drive can output. The drive will not restart the motor (Speed Search) if induced voltage ≥ supply voltage × b3-36 after a Run command is entered. The drive will restart the motor when induced voltage < supply voltage × b3-36. For example, if the setting value is 0.83 and the voltage does not decrease to the induced voltage at approximately 183 V when the power supply voltage is 220 V, the drive will not restart.