B8: Energy Saving - YASKAWA A1000 Technical Manual


b7-01: Droop Control Gain
Sets the amount of speed reduction when the torque reference is 100%. The gain is set as a percentage of the maximum
output frequency. A setting of 0.0% disables the Droop control function.
No.
b7-01
Figure 5.31

b7-02: Droop Control Delay Time
Adjusts the responsiveness of Droop control. Reduce the setting if the reaction time is too long, and increase it if hunting
occurs.
No.
b7-02

b7-03: Droop Control Limit Selection
Enables or disables the droop control limit.
No.
b7-03
Setting 0: Disabled
Setting 1: Enabled
 b8: Energy Saving
The Energy Saving feature improves overall system operating efficiency by operating the motor at its most efficient
level.
Note: 1. Energy Saving is not designed for applications that experience instantaneous heavy loads or applications that rarely operate with light
load conditions.
2. Energy Saving is mainly designed for applications with variable torque (Normal Duty) but is not appropriate for applications where
the load may suddenly increase.
3. As the performance of the Energy Saving function strongly depends on the accuracy of the motor data, always perform Auto-Tuning
and make sure the motor data has been entered correctly before using this function.

b8-01: Energy Saving Control Selection
Enables or disables the Energy Saving function.
No.
b8-01
Setting 0: Disabled
Setting 1: Enabled

b8-02: Energy Saving Gain (OLV, CLV)
Sets the gain level for Energy Saving. A higher value results in lower magnetization of the motor and thereby less energy
consumption. However, if b8-02 is too high, the motor may stall.
No.
b8-02
YASKAWA ELECTRIC SIEP C710616 27G YASKAWA AC Drive A1000 Technical Manual
Parameter Name
Droop Control Gain
Speed
Speed reference
0
Figure 5.31 Droop Control Gain
Parameter Name
Droop Control Delay Time
Parameter Name
Droop Control Limit Selection
Parameter Name
Energy Saving Control Selection
Name
Energy Saving Gain
Setting Range
0.0 to 100.0%
Droop control gain
b7-01
Torque
100%
Setting Range
0.03 to 2.00 s
Setting Range
0, 1
Setting Range
0 or 1
Setting Range
0.0 to 10.0
5.2 b: Application
Default
0.0%
Default
0.05 s
Default
1
5
Default
Determined by A1-02
Default
Determined by A1-02
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