Parameter Details
12
12.2 b: APPLICATION
SIEPYEUOQ2A01A AC Drive Q2A Technical Manual 557
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 [FF Control Selection = Disabled].
Figure 12.35 Droop Control Application
■ b7-01 Droop Ctrl Gain
No.
(Hex.)
Name Description
Default
(Range)
b7-01
(01CA)
RUN
Droop Ctrl Gain
Sets the amount of deceleration when the torque reference is at 100% of Maximum Output
Frequency.
0.0%
(0.0 - 100.0%)
To disable Droop control, set this parameter to 0.0%.
Figure 12.36 Droop Control Gain
■ b7-02 Droop Ctrl Delay Time
No.
(Hex.)
Name Description
Default
(Range)
b7-02
(01CB)
RUN
Droop Ctrl 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 Ctrl Limit Selection
No.
(Hex.)
Name Description
Default
(Range)
b7-03
(017E)
Droop Ctrl 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.
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