Yaskawa AC Drive Z1000 Bypass Technical Manual User Manual
Page 126
No.
Name
Setting Range
Default
b3-06
Output Current 1 during Speed Search
0.0 to 2.0
Determined by
o2-04
Note:
Use Current Detection Speed Search if Speed Estimation is not working correctly even after adjusting b3-06.
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.
No.
Name
Setting Range
Default
b3-07
Output Current 2 during Speed Search (Speed Estimation Type)
0.0 to 5.0
1.0
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
Determined by
o2-04
n
b3-09: Current Control Integral Time during Speed Search (Speed Estimation Type)
Sets the Integral Time for the current controller during Speed Search.
No.
Name
Setting Range
Default
b3-09
Current Control Integral Time during Speed Search (Speed
Estimation Type)
0.0 to 1000.0 ms
2.0 ms
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
b3-11: Speed Search Method Switching Level (Speed Estimation Type)
Within the type of the speed measurement, the search method can be switched automatically by the amount of remaining
voltage in the motor. This parameter sets the switching level. (208 Vac at 100% = 208 V, and 480 Vac at 100% = 480 V).
No.
Name
Setting Range
Default
b3-11
Speed Search Method Switching Level (Speed Estimation Type)
0.5 to 100.0%
5.0%
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.
No.
Name
Setting Range
Default
b3-12
Minimum Current Detection Level during Speed Search
2.0 to 10.0
Determined by
o2-04
n
b3-14: Bi-Directional Speed Search Selection
Sets how the drive determines the motor rotation direction when performing Speed Estimation Speed Search.
No.
Parameter Name
Setting Range
Default
b3-14
Bi-Directional Speed Search Selection
0, 1
1
5.2 b: Application
126
YASKAWA ELECTRIC SIEP YAIZ1B 01D YASKAWA AC Drive – Z1000 Bypass Technical Manual