YASKAWA GA700 Series Technical Manual page 686

12.3 b: Application
Note:
• Energy-saving control is not appropriate for applications with sudden changes in the load, or applications driving heavy loads such as a
traverse car application.
• Energy-saving control maximizes operation based on precise motor data set to the drive. Be sure to perform Auto-Tuning and enter the
correct information about the motor before using the Energy-saving control.
■
b8-01: Energy Saving Control Selection
No.
Name
(Hex.)
b8-01 Energy Saving Control
Selection
(01CC)
0 : Disabled
1 : Enabled
2 : Automatic Optimization
Note:
Setting 2 is available only when A1-02 = 6, 7 [Control Method Selection = AOLV/PM, CLV/PM] and in Expert Mode.
■
b8-02: Energy Saving Gain
No.
Name
(Hex.)
b8-02 Energy Saving Gain
(01CD)
RUN
Expert
Increase the setting value to increase energy saving. If the setting value is too large, the motor will stall.
■
b8-03: Energy Saving Filter Time
No.
Name
(Hex.)
b8-03 Energy Saving Filter Time
(01CE)
RUN
Expert
Decrease the setting value to increase responsiveness. If the setting value is too low, operation will not be stable.
■
b8-04: Energy Saving Coefficient Value
No.
Name
(Hex.)
b8-04 Energy Saving Coefficient
Value
(01CF)
Expert
When you use a motor from a different manufacturer, increase the setting value in 5% increments to find the
minimum value for U1-08 [Output Power] at light loads.
When you decrease the setting value, it decreases the output voltage and decreases power consumption. If the
setting value is too low, the motor will stall.
Note:
When you do Rotational Auto-Tuning, the drive will automatically set the energy-saving coefficient.
■
b8-05: Power Detection Filter Time
No.
Name
(Hex.)
b8-05 Power Detection Filter
Time
(01D0)
Expert
Decrease the setting value to increase responsiveness to load changes. If you set the value too low during
operation at light loads, motor speed is not stable.
686
V/f CL-V/f OLV CLV AOLV
Sets the Energy-saving control function.
V/f CL-V/f OLV CLV AOLV
Sets the gain for Energy-saving control.
V/f CL-V/f OLV CLV AOLV
Sets the responsiveness for Energy-saving control.
V/f CL-V/f OLV CLV AOLV
Sets the Energy-saving control coefficient to maintain maximum motor efficiency. The default
setting is for Yaskawa motors.
V/f CL-V/f OLV CLV AOLV
Sets the time constant to measure output power.
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
YASKAWA SIEPC71061705H GA700 Series Technical Manual
Default
(Range)
0
(0 - 2)
Default
(Range)
Determined by A1-02
(0.0 - 10.0)
Default
(Range)
Determined by A1-02，C6-
01 and o2-04
(0.00 - 10.00 s)
Default
(Range)
Determined by C6-01, E2-
11, and o2-04
(0.00 - 655.00)
Default
(Range)
20 ms
(0 - 2000 ms)