YASKAWA FSDrive-MV1000 Parameter Manual page 107

b3-07: Output Current 2 during Speed Search (Speed Estimation)
■
Sets the current injected to the motor at the beginning of Speed Estimation Speed Search as a factor of the motor rated
current set in E2-01 (E4-01 for motor 2).
If, when a Speed Estimation search is performed, the estimation result is the minimum output frequency, increase the set
value in increments of 0.1.
No.
b3-07
■ b3-10: Speed Search Detection Compensation Gain (Speed Estimation)
This parameter sets the gain for the detected motor speed of the Speed Estimation Speed Search. The setting should be
increased only if an overvoltage fault occurs when the drive restarts the motor.
No.
b3-10
b3-11: Speed Search Method Switching Level (Speed Estimation)
■
This parameter sets the switching level when the search method is automatically selected in accordance with the size of
the motor's residual voltage.
No.
b3-11
<1> For details on the default settings, refer to
b3-17: Speed Search Restart Current Level
■
A large current can flow into the drive if there is a fairly large difference between the estimated frequency and the actual
motor speed when performing Speed Estimation. This parameter sets the current level at which Speed Estimation is
restarted, thus avoiding overcurrent and overvoltage problems. Set as a percentage of the drive rated current.
No.
b3-17
■ b3-18: Speed Search Restart Detection Time
Sets the time that the current must be greater than the level set in b3-17 before Speed Search can be restarted.
No.
b3-18
b3-19: Number of Speed Search Restarts
■
Sets the number of times the drive should attempt to find the speed and restart the motor. If the number of restart attempts
exceeds the value set to b3-19, the SEr fault will occur and the drive will stop.
No.
b3-19
b3-25: Speed Search Wait Time
■
Sets the wait time between Speed Search restarts. Increase the wait time if problems occur with overcurrent, overvoltage,
or if the SEr fault occurs.
No.
b3-25
YASKAWA ELECTRIC EZZ010930 FSDrive-MV1000 Parameter Guide
Name
Output Current 2 during Speed Search (Speed
Estimation)
Name
Speed Search Detection Compensation Gain
(Speed Estimation)
Name
Speed Search Method Switching Level
(Speed Estimation)
Defaults by Drive Model Selection (o2-04) on page
Name
Speed Search Restart Current Level
Name
Speed Search Restart Detection Time
Name
Number of Speed Search Restarts
Name
Speed Search Wait Time
Setting Range
0.0 to 3.0 2.0
Setting Range
1.00 to 1.20 1.05
Setting Range
0.5 to 100.0 Determined by o2-04
82.
Setting Range
0 to 200% 120%
Setting Range
0.00 to 1.00 s 0.10 s
Setting Range
0 to 10 3
Setting Range
0.0 to 30.0 s 0.5 s
2.2 b: Application
Default
Default
Default
<1>
Default
Default
Default
Default
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