Yaskawa AC Drive-P1000 Industrial Fan - Manual (Page 157)

n b3-04: V/f Gain During Speed Search
During Speed Search, the output voltage calculated from the V/f pattern is multiplied with this value. Changing this value can
help reduce the output current during Speed Search.
No. Name Setting Range Default
b3-04 V/f Gain During Speed Search 10 to 100%
Determined by
o2-04
n b3-05: Speed Search Delay Time
In cases where an output contactor is used between the drive and the motor, the contactor must be closed before Speed Search
can be performed. This parameter can be used to delay the Speed Search operation, giving the contactor enough time to close
completely.
No. Name Setting Range Default
b3-05 Speed Search Delay Time 0.0 to 100.0 s 0.2 s
n b3-06: Output Current 1 During Speed Search
Sets the current injected to the motor at the beginning of Speed Estimation Speed Search as a coefficient for the motor rated
current.
No. Name Setting Range Default
b3-06 Output Current 1 during Speed Search 0.0 to 2.0
Determined by
o2-04
n b3-07: Output Current 2 during Speed Search (Speed Estimation Type)
Sets the amount of output current during Speed Estimation Speed Search as a coefficient for the no-load current. Output current
during Speed Search is automatically limited by the drive rated current. Increase this setting value in increments of 0.1 if the
drive fails to perform Speed Estimation
Note: This parameter is only available in models 4A0930 and 4A1200.
No. Name Setting Range Default
b3-07 Output Current 2 during Speed Search (Speed Estimation Type) 0.0 to 5.0
Determined by
o2-04
n b3-08: Current Control Gain during Speed Search (Speed Estimation Type)
Sets the proportional gain for the current controller during Speed Search.
No. Name Setting Range Default
b3-08 Current Control Gain during Speed Search (Speed Estimation Type) 0.00 to 6.00 0.8
n b3-10: Speed Search Detection Compensation Gain
Sets the gain for the detected motor speed of the Speed Estimation Speed Search. Increase the setting only if an overvoltage
fault occurs when the drive restarts the motor.
No. Name Setting Range Default
b3-10 Speed Search Detection Compensation Gain 1.00 to 1.20 1.05
n b3-12: Minimum Current Detection Level during Speed Search
Sets the minimum current detection level during Speed Search. Increase this setting value in increments of 0.1 if the drive
fails to perform Speed Estimation.
Note: This parameter is only available in models 4A0930 and 4A1200.
No. Name Setting Range Default
b3-12 Minimum Current Detection Level during Speed Search 2.0 to 10.0 6.0
n b3-14: Bi-Directional Speed Search Selection
Sets how the drive determines the motor rotation direction when performing Speed Estimation Speed Search.
5.2 b: Application
YASKAWA SIEP YAIP1U 01B AC Drive - P1000 Technical Manual 157
5
Parameter Details