2.3 b: Application
240 YASKAWA TOEPYAIGA8002B GA800 Drive Programming
■ b7-01: Droop Control Gain
No.
(Hex.)
Name Description
Default
(Range)
b7-01
(01CA)
RUN
Droop Control Gain
Sets the amount of deceleration when the torque reference is at 100% as a percentage of E1-04
[Maximum Output Frequency].
0.0%
(0.0 - 100.0%)
To disable Droop control, set this parameter to 0.0%.
Figure 2.42 Droop Control Gain
■ b7-02: Droop Control Delay Time
No.
(Hex.)
Name Description
Default
(Range)
b7-02
(01CB)
RUN
Droop Control Delay Time
Sets the responsiveness of Droop control. Decrease this setting when drive response is slow. Increase
this setting when hunting or oscillation occur.
0.05 s
(0.03 - 2.00 s)
■ b7-03: Droop Control Limit Selection
No.
(Hex.)
Name Description
Default
(Range)
b7-03
(017E)
Droop Control Limit
Selection
Sets the Droop control limit function.
1
(0, 1)
0 : Disabled
1 : Enabled
◆ b8: Energy Saving
Energy-saving control improves overall system operating efficiency by operating the motor at its most efficient level.
Set b8-01 and the following parameters according to the control mode and the motor.
• Set parameters b8-04, b8-05, and b8-06 when using V/f Control or Closed Loop V/f Control.
• Set parameters b8-02, b8-03 when using vector control with an induction motor.
• Set parameters b8-16, b8-17 when using a PM motor.
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.
(Hex.)
Name Description
Default
(Range)
b8-01
(01CC)
Energy Saving Control
Selection
Sets the Energy-saving control function.
0
(0 - 2)
0 : Disabled
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