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
A1-02 and 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
Determined by
A1-02
n
b3-10: Speed Search Detection Compensation Gain (Speed Estimation Type)
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. (200 V class at 100% = 200 V, and 400 V class at 100% = 400
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 (Speed Estimation Type)
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
Setting 0: Disabled
The drive uses the frequency reference to determine the direction of motor rotation to restart the motor.
Setting 1: Enabled
The drive detects the motor rotation direction to restart the motor.
n
b3-17: Speed Search Restart Current Level (Speed Estimation Type)
Sets the current level at which Speed Estimation is restarted as a percentage of drive rated current to avoid overcurrent and
overvoltage problems since a large current can flow into the drive if the difference between the estimated frequency and the
actual motor speed is too big when performing Speed Estimation.
No.
Name
Setting Range
Default
b3-17
Speed Search Restart Current Level
0 to 200%
150%
1.2 b: Application
26
YASKAWA ELECTRIC SIEP C710636 10C Z1000U HVAC MATRIX Drive Programming Manual
