YASKAWA P1000 Technical Manual page 159

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.
b3-17
n b3-18: Speed Search Restart Detection Time (Speed Estimation Type)
Sets the time for which the current must be above the level set in b3-17 before restarting Speed Search.
No.
b3-18
n b3-19: Number of Speed Search Restarts (Speed Estimation Type)
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
n b3-24: Speed Search Method Selection
Sets the Speed Search method.
No.
b3-24
Setting 0: Current Detection
Setting 1: Speed Estimation
Note: Refer to Current Detection Speed Search (b3-24 = 0) on page 153
page 154 for explanations of the Speed Search methods.
n 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
n
b3-26: Direction Determining Level
Sets the level that determines the direction of motor rotation. Increase this value if the drive fails to detect the direction of the
motor correctly.
Note: This parameter is only available in models 4A0930 and 4A1200.
No.
b3-26
n b3-27: Start Speed Search Select
Selects a condition to activate Speed Search Selection at Start (b3-01) or External Speed Search Command 1 or 2 from the
multi-function input.
No.
b3-27
YASKAWA SIEP YAIP1U 01C AC Drive - P1000 Technical Manual
Name
Speed Search Restart Current Level
Name
Speed Search Restart Detection Time
Name
Number of Speed Search Restarts
Parameter Name
Speed Search Method Selection
Name
Speed Search Wait Time
Name
Direction Determining Level
Name
Start Speed Search Select
Setting Range
0 to 200%
Setting Range
0.00 to 1.00 s
Setting Range
0 to 10
Setting Range
0, 1
and Refer to Speed Estimation Type Speed Search (b3-24 = 1) on
Setting Range
0.0 to 30.0 s
Setting Range
40 to 60000
Setting Range
0, 1
5.2 b: Application
Default
150%
Default
0.10 s
Default
3
Default
0
Default
0.5 s
5
Default
Determined by
o2-04
Default
0
159