Yaskawa CIMR-UU2A0104F [172/644] B3 10 speed search detection compensation gain

Yaskawa CIMR-UU2A0042A [172/644] B3 10 speed search detection compensation gain
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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
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b3-14: Bi-Directional Speed Search Selection
Sets how the drive determines the motor rotation direction when performing Speed Estimation Speed Search.
Disable this parameter when b3-50, Backspin Search Direction Judgment Time 1, is set to 0.1 or longer.
No. Parameter Name Setting Range Default
b3-14 Bi-Directional Speed Search Selection 0, 1
Determined by
A1-02
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.
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b3-17: Speed Search Restart Current Level
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%
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b3-18: Speed Search Restart Detection Time
Sets the time for which the current must be above the level set in b3-17 before restarting Speed Search.
No. Name Setting Range Default
b3-18 Speed Search Restart Detection Time 0.00 to 1.00 s 0.10 s
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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. Name Setting Range Default
b3-19 Number of Speed Search Restarts 0 to 10 3
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b3-24: Speed Search Method Selection
Sets the Speed Search method.
In
V/f, V/f
w/PG, or OLV control modes, set this parameter to 2 (Current Detection Type Speed Search 2) when b3-50 is 0.1
or longer.
No. Parameter Name Setting Range Default
b3-24 Speed Search Method Selection 1, 2 2
Setting 1: Speed Estimation
Setting 2: Current Detection 2
Note: 1. Enable or disable Speed Search at start with b3-01 and Speed Search after momentary power loss with L2-01.
2. Refer to Current Detection Speed Search 2 (b3-24 = 2) on page 169 and
Refer to Speed Estimation Speed Search (b3-24 = 1) on
page 169 for details on the Speed Search direction.
5.2 b: Application
172
YASKAWA ELECTRIC SIEP C710636 04C U1000 Industrial MATRIX Drive Technical Manual

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