YASKAWA U1000 iQpump Drive, Техническое руководство

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b6-01
b6-03
b6-02 b6-04
Run Command
Output Frequency
ON OFF OFF
Figure 5.27 Dwell Function at Start and Stop
n b6-01, b6-02: Dwell Reference, Dwell Time at Start
Parameter b6-01 determines the frequency that is held for the time set in b6-02 during acceleration.
No. Name Setting Range Default
b6-01 Dwell Reference at Start 0.0 to 400.0 Hz 0.0 Hz
b6-02 Dwell Time at Start 0.0 to 10.0 s 0.0 s
n b6-03, b6-04: Dwell Reference, Dwell Time at Stop
Parameter b6-03 determines the frequency that is held for the time set in b6-04 during deceleration.
No. Name Setting Range Default
b6-03 Dwell Reference at Stop 0.0 to 400.0 Hz 0.0 Hz
b6-04 Dwell Time at Stop 0.0 to 10.0 s 0.0 s
u
b7: Droop Control (CLV, 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.
B
A
= 90% Load
= 90% Load
B
A
= 100% Load
= 80% Load
Droop Control increases the speed reference in
drive B accomplishing load balance
B
A
= 80% Load
= 100% Load
B
A
= 90% Load
= 90% Load
f
ref_A
= constant
f
ref_A
= constant
f
ref_B
increase f
ref_B
decrease
Droop Control decreases the speed reference in
drive B accomplishing load balance
Motor A runs faster than B, pulling more load Motor B runs faster than A, pulling more load
Figure 5.28 Droop Control Application
n 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
frequency. A setting of 0.0% disables the Droop control function.
No. Parameter Name Setting Range Default
b7-01 Droop Control Gain 0.0 to 100.0% 0.0%
5.2 b: Application
YASKAWA ELECTRIC SIEP C710636 04D U1000 Industrial MATRIX Drive Technical Manual 217
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Parameter Details