B7: Droop Control - YASKAWA GA800 Programming Manual

When the drive accelerates to the output frequency set in b6-01, it holds that frequency for the time set in b6-02
[Dwell Time at Start], and starts to accelerate again.
■
b6-02: Dwell Time at Start
No.
Name
(Hex.)
b6-02 Dwell Time at Start
(01B7)
■
b6-03: Dwell Reference at Stop
No.
Name
(Hex.)
b6-03 Dwell Reference at Stop
(01B8)
When the drive decelerates to the output frequency set in b6-03, it holds that frequency for the time set in b6-04
[Dwell Time at Stop] and starts to decelerate again.
■
b6-04: Dwell Time at Stop
No.
Name
(Hex.)
b6-04 Dwell Time at Stop
(01B9)
◆

b7: Droop Control

Droop control automatically balances the load level between two motors that operate the same load.
Droop control decreases motor speed as the load changes. You must enable the Droop control function for each motor
it is operating.
To decrease motor speed, the Droop control function decreases the speed reference when an increase in the load
increases the torque reference. To increase motor speed, the Droop control function increases the speed reference
when a decrease in the load decreases the torque reference. The Droop control function adjusts motor speed as the
torque reference changes to balance the load between the motors.
Note:
When you use Droop control, set n5-01 = 0 [Feed Forward Control Selection = Disabled].
YASKAWA TOEPYAIGA8002B GA800 Drive Programming
V/f CL-V/f OLV CLV AOLV
Sets the length of time that the drive will hold the output frequency when the motor starts.
V/f CL-V/f OLV CLV AOLV
Sets the output frequency that the drive will hold momentarily when ramping to stop the motor.
V/f CL-V/f OLV CLV AOLV
Sets the length of time for the drive to hold the output frequency when ramping to stop the motor.
Figure 2.41 Droop Control Application
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
2.3 b: Application
Default
(Range)
0.0 s
(0.0 - 10.0 s)
Default
(Range)
0.0
(Determined by A1-02)
Default
(Range)
0.0 s
(0.0 - 10.0 s)
2
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