B7: Droop Control (Clv/Pm) - YASKAWA L1000A Technical Manual

5.2 b: Application
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b6-01, b6-02: Dwell Speed, Dwell Time at Start
Parameter b6-01 determines the speed that is held or the time set in b6-02 during acceleration.
No.
b6-01
b6-02
<1> A setting of 100% is equal to the maximum speed.
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b6-03, b6-04: Dwell Speed, Dwell Time at Stop
Parameter b6-03 determines the speed that is held for the time set in b6-04 during deceleration.
No.
b6-03
b6-04
<1> A setting of 100% is equal to the maximum speed.

◆ b7: Droop Control (CLV/PM)

Droop control automatically balances the load level between two motors driving the same load. Droop control must be
activated in one of the drives controlling these motors. The drive in which Droop control is activated shifts the load from
one motor to another by automatically reducing the speed when the torque reference rises, and automatically increasing
the speed when the torque reference falls.
Note: Disable Feed Forward (n5-01 = 0) whenever using Droop control.
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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 speed. A setting of 0.0% disables the Droop control function.
No.
b7-01
Figure 5.4
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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
152
Name
Dwell Speed at Start
Dwell Time at Start
Name
Dwell Speed at Stop
Dwell Time at Stop
Parameter Name
Droop Control Gain
Speed
Speed reference
0
Figure 5.4 Droop Control Gain
Parameter Name
Droop Control Delay Time
YASKAWA ELECTRIC SIEP C710616 38A YASKAWA AC Drive L1000A Technical Manual
Setting Range
0.0 to 100.0%
0.0 to 10.0 s
Setting Range
0.0 to 100.0%
0.0 to 10.0 s
Setting Range
0.0 to 100.0%
Droop control gain
b7-01
common_TMonly
Torque
100%
Setting Range
0.03 to 2.00 s
Default
0.0%
<1>
0.0 s
Default
0.0%
<1>
0.0 s
Default
0.0%
Default
0.05 s