Yaskawa CIMR-UU4A0034A [171/644] During speed search the output voltage calculated from the v f pattern is multiplied with this value changing this value can help reduce the output current during speed search

Yaskawa CIMR-UU4A0014A [171/644] During speed search the output voltage calculated from the v f pattern is multiplied with this value changing this value can help reduce the output current during speed search
No. Parameter Name Setting Range Default
b3-01 Speed Search Selection at Start 0, 1
Determined by
A1-02
Setting 0: Disabled
This setting starts operating the drive at the minimum output frequency when the Run command is entered. If external Speed
Search 1 or 2 is already enabled by a digital input, the drive will start operating with Speed Search.
Setting 1: Enabled
This setting performs Speed Search when the Run command is entered. The drive begins running the motor after Speed Search
is complete.
n
b3-03: Speed Search Deceleration Time
Sets the output frequency reduction ramp. The time entered into b3-03 will be the time to decelerate from maximum frequency
(E1-04) to minimum frequency (E1-09).
In Current Detection Type 2 Speed Search, the time set in this parameter is used as the acceleration or deceleration time for
the output frequency while searching.
No. Name Setting Range Default
b3-03 Speed Search Deceleration Time 0.1 to 10.0 s 2.0 s
n
b3-04: V/f Gain during Speed Search
During
Speed Search,
the output voltage calculated from the V/f pattern is multiplied with this value. Changing this value can
help reduce the output current during Speed Search.
No. Name Setting Range Default
b3-04 V/f Gain during Speed Search 10 to 100%
Determined by
C6-01 and o2-04
n
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. This parameter can be used to delay the Speed Search operation, giving the contactor enough time to close
completely.
No. Name Setting Range Default
b3-05 Speed Search Delay Time 0.0 to 100.0 s 0.2 s
n
b3-06: Output Current 1 during Speed Search
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 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.
No. Name Setting Range Default
b3-06 Output Current 1 during Speed Search 0.0 to 2.0
Determined by
o2-04
Note: Use Current Detection Speed Search 2 if Speed Estimation is not working correctly even after adjusting b3-06.
n
b3-08: Current Control Gain during Speed Search (Speed Estimation Type)
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 to 3:
Determined by
o2-04
A1-02 = 5, 6: 0.30
5.2 b: Application
YASKAWA ELECTRIC SIEP C710636 04C U1000 Industrial MATRIX Drive Technical Manual
171
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Parameter Details

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