Omron Q2V Series Technical Manual page 485

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b8-17: PM eSave Coef.Kt
No.
Name
(Hex.)
b8-17 PM eSave Coef.Kt
(01F9)
Expert
When E5-01 = 1xxx [PM Mot Code Selection = Yaskawa SSR1 series IPM motor], the drive automatically
calculates the energy-saving coefficient Kt and uses that value to control operation.
Do this procedure to prevent oscillation when you set b8-01 = 1 [eSave Ctrl Selection = Enabled].
1. Check U5-22 [Energy Save Kt Coeff] and make sure that it aligns with the Kt value on the motor nameplate.
2. If the numbers are different, set b8-17 to the Kt value on the motor nameplate.
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b8-18: eSave d-Axis Filter Time
No.
Name
(Hex.)
b8-18 eSave d-Axis Filter Time
(01FA)
Expert
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b8-19: eSave Search Frequency
No.
Name
(Hex.)
b8-19 eSave Search Frequency
(0B40)
Expert
Note:
• If low inertia causes vibration in the machine, increase the setting value in 10 Hz increments and check the response. If A1-02 = 8
[Control Method = EZ Vector], increase the setting value in 1 Hz increments.
• To make the motor more efficient, decrease the setting value in 1 Hz increments until the point immediately before machine vibration
starts to occur.
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b8-20: PM eSave Width for Test
No.
Name
(Hex.)
b8-20 PM eSave Width for Test
(0B41)
Expert
An increase in the value can make the operational efficiency better. However, if the load inertia is small, it may be
necessary to adjust the value to prevent machine vibration.
Note:
• If low inertia causes vibration in the machine, decrease the setting value in 1.0-degree increments and check the response.
• To make the motor more efficient, increase the setting value in 1.0-degreee increments until the point immediately before machine
vibration starts to occur.
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b8-21: PM eSave Gain for Test
No.
Name
(Hex.)
b8-21 PM eSave Gain for Test
(0B42)
Expert
When you decrease the value of C5-01 [ASR PGain 1], also decrease the value of b8-21 to keep the correct ratio.
SIEPCYEUOQ2V01A Q2V Technical Manual
V/f OLV OLV/PM OLV/PM AOLV/PM EZOLV
Sets torque linearity. This parameter uses the Kt value from the motor nameplate. Usually it is not
necessary to change this setting.
V/f OLV OLV/PM OLV/PM AOLV/PM EZOLV
Sets the d-axis current reference filter time constant.
V/f OLV OLV/PM OLV/PM AOLV/PM EZOLV
Sets the frequency of Energy-saving control search operations. Usually it is not necessary to
change this setting.
V/f OLV OLV/PM AOLV/PM EZOLV OLV/PM
Sets the amplitude of Energy-saving control search operations.
V/f OLV OLV/PM OLV/PM AOLV/PM EZOLV
Sets the gain of Energy-saving control search operations.
Description
Description
Description
Description
Description
12.2 b: APPLICATION
Default
(Range)
1.00
(0.00 - 3.00)
Default
(Range)
0.100 s
(0.000 - 5.000 s)
Default
(Range)
Determined by A1-02
(10 - 300 Hz)
Default
(Range)
1.0 degrees
(0.1 - 5.0 degrees)
Default
(Range)
0.3Hz
(0.1 - 20.0 Hz)
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