YASKAWA V1000

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b3-01: Speed Search Selection at Start
Selects if Speed Search is automatically performed when a Run command is issued.
No. Parameter Name Setting Range Default
b3-01 Speed Search Selection at Start 0 or 1 0
Setting 0: Disabled
Speed Search is not automatically performed. It can be activated using a digital input.
Setting 1: Enabled
Speed Search is performed with every Run command.
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b3-02: Speed Search Deactivation Current
Sets Speed Search operating current as a percentage of the drive rated current. If the current falls below this level while
performing Current Detection Speed Search then Speed Search will be finished and normal operation will resume.
Normally there is no need to change this setting. If the drive won’t run after a restart, lower this value.
No. Name Setting Range Default
b3-02 Speed Search Deactivation Current 0 to 200%
Determined by
A1-02
Note: When parameter A1-02 = 0 (V/f Control) the factory default setting is 120. When parameter A1-02 = 2 (Open Loop Vector) the factory
default setting is 100.
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b3-03: Speed Search Deceleration Time
Parameter b3-03 sets the output frequency reduction ramp used by Current Detection Speed Search (b3-24 = 0) and by the
Current Injection Method of Speed Estimation (b3-24 = 1). The time entered into b3-03 will be the time to decelerate from
maximum frequency (E1-04) to minimum frequency (E1-09).
No. Name Setting Range Default
b3-03 Speed Search Deceleration Time 0.1 to 10.0 s 2.0 s
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b3-05: Speed Search Delay Time
In cases where an output contactor is used between the drive and the motor, the contactor must be closed before Speed
Search
can be performed. For Speed Search after
a momentary power loss, parameter b3-05 can be used to delay the Speed
Search start providing enough time to operate the contactor.
When Speed Search at start is used, b3-05 will serve as the lower limit of the minimum baseblock time (L2-03).
No. Name Setting Range Default
b3-05 Speed Search Delay Time 0.0 to 100.0 s 0.2 s
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b3-06: Output Current 1 During Speed Search
Sets
the current injected to the motor at
the beginning of Estimation Type Speed Search as a factor related to motor rated
current set in E2-01 and E4-01. If the motor speed is relatively slow when the drive starts to perform Speed Search after
a long period of baseblock, it may be helpful to increase the setting value. The output current during Speed Search is
automatically limited by the drive rated current. This function has no influence when Current Detection Speed Search is
used (b3-24 = 0).
No. Name Setting Range Default
b3-06 Output Current 1 during Speed Search 0.0 to 2.0
Determined by
o2-04
Note: If Speed Estimation is not working correctly even after adjusting b3-06, try using Current Detection Speed Search instead.
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b3-08: Current Control Gain during Speed Search (Speed Estimation Type)
Note: Parameter available in drive software versions PRG: 1022 and later.
Sets
the proportional gain for the current controller during Speed Search. There is normally no need to change this parameter
from the default value.
No. Name Setting Range Default
b3-08
Current Control Gain during Speed Search
(Speed Estimation Type)
0.00 to 6.00
A1-02 = 0 or 2:
0.50
A1-02 = 5: 0.30
5.2 b: Application
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YASKAWA ELECTRIC SIEP C710606 16C YASKAWA AC Drive – V1000 Technical Manual