Yaskawa Matrix Converter - Manual (Page 287)

6
-122
„ Related Parameters
„ Setting Precautions
• Droop Control is disabled if b7-01 is set to 0.0.
• Set b7-01 to the amount of slip as the percentage of slip when the maximum output frequency is input and
the rated torque is generated.
• Parameter b7-02 is used to adjust the responsiveness of Droop Control. Increase this setting if oscillation
or hunting occur.
• Disable the feed forward control (n5-01 = 0) when using the droop control function.
„ Setting the Droop Control Gain
Set the droop control gain as the speed reduction at a 100% motor torque, as a percentage of the maximum
output frequency.
Fig 6.78 Droop Control Gain
Parameter
Number
Name
Description
Setting
Range
Default
Change
during
Run
Control Methods
Display V/f
Open
Loop
Vector
Flux
Vector
b7-01
Droop Control
Level Sets the speed decrease as a percentage of
motor base speed (E1-06) when the motor is
at 100% load torque. Setting of 0.0 disables
droop control.
0.0 to
100.0
0.0 Yes No No A
Droop Quantity
b7-02
Droop Control
Delay Time
Determines the droop control delay time in
response to a load change. 0.03 to
2.00
0.05 s Yes No No A
Droop Delay Time
Torque
Speed
Speed reference 0
100%
b7-01