YASKAWA GA700 Technical Manual page 636

11.3 b: Application
The Droop control function reduces motor speed by lowering the speed reference when the torque reference rises
due to an increase in the load. The Droop control function increases motor speed by raising the speed reference
when the torque reference drops due to a decrease in the load. The Droop control function adjusts motor speed in
accordance with changes in the torque reference to balance the load between the motors.
Note:
Set n5-01 = 0 [Feed Forward Control Selection = Disabled] when using the Droop control.
Figure 11.41 Droop Control (Traveling Motion of a Crane Is Viewed from Above)
■
b7-01: Droop Control Gain
No.
Name
(Hex.)
b7-01 Droop Control Gain
(01CA)
RUN
Set b7-01 to 0.0% to disable Droop control.
■
b7-02: Droop Control Delay Time
No.
Name
(Hex.)
b7-02 Droop Control Delay
Time
(01CB)
RUN
■
b7-03: Droop Control Limit Selection
No.
Name
(Hex.)
b7-03 Droop Control Limit
Selection
(017E)
0 : Disabled
1 : Enabled
636
V/f CL-V/f OLV CLV AOLV
Sets the amount of deceleration when the torque reference is at 100% as a
percentage of Maximum Output Frequency.
Figure 11.42 Droop Control Gain
V/f CL-V/f OLV CLV AOLV
Adjusts the responsiveness of Droop control. Lower this setting when drive
response is slow. Raise this setting when hunting or oscillation occur.
V/f CL-V/f OLV CLV AOLV
Enables or disables the limit when using Droop control.
YASKAWA ELECTRIC SIEP C710617 01B YASKAWA AC Drive GA700 Technical Manual
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
Default
(Range)
0.0%
(0.0 - 100.0%)
Default
(Range)
0.05 s
(0.03 - 2.00 s)
Default
(Range)
1
(0, 1)