YASKAWA GA800 Technical Reference page 765

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b8-19: E-Save Search Frequency
No.
Name
(Hex.)
b8-19 E-Save 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 Selection = EZOLV], 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: E-Save Search Width
No.
Name
(Hex.)
b8-20 E-Save Search Width
(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 E-Save Search Gain
No.
Name
(Hex.)
b8-21 PM E-Save Search Gain
(0B42)
Expert
When you decrease the value of C5-01 [ASR Proportional Gain 1], also decrease the value of b8-21 to keep the
correct ratio.
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b8-22: PM E-Save Search LPF Cutoff Freq
No.
Name
(Hex.)
b8-22 PM E-Save Search LPF
Cutoff Freq
(0B43)
Expert
■
b8-23: PM E-Save Search Limit
No.
Name
(Hex.)
b8-23 PM E-Save Search Limit
(0B44)
Expert
When the motor characteristics are correct, increase this value to make the motor more efficient.
YASKAWA SIEPC71061737D GA800 Drive Technical Reference
V/f CL-V/f OLV CLV AOLV
Sets the frequency of Energy-saving control search operations. Usually it is not necessary to change
this setting.
V/f CL-V/f OLV CLV AOLV
Sets the amplitude of Energy-saving control search operations.
V/f CL-V/f OLV CLV AOLV
Sets the gain of Energy-saving control search operations.
V/f CL-V/f OLV CLV AOLV
Sets the frequency of the filter used to extract the high-efficiency phase from search operations.
Usually it is not necessary to change this setting.
V/f CL-V/f OLV CLV AOLV
Sets the search operations output limit. Usually it is not necessary to change this setting.
Description
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
Description
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
Description
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
Description
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
Description
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
12.3 b: Application
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)
Default
(Range)
10.0 Hz
(1.0 - 30.0 Hz)
Default
(Range)
15.0 degrees
(0.0 - 30.0 degrees)
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