Rockwell-automation 21G PowerFlex 750-Series AC Drives Programming Man Manual de usuario Pagina 426

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426 Rockwell Automation Publication 750-PM001J-EN-P - October 2014
Appendix A PowerFlex 755 Control Block Diagrams
Figure 60 - Torque Control - Inertia Adaption
1
2
3
4
5
6
B
A
D
C
FE HG
I
Limit
Pos Torque Limit
Torque
Limits
Neg Torque Limit
Notch Filter
Output
X
76
705
Inertia Adapt BW
Limited
Trq Ref
X
706
InertiaAdaptGain
LPass
Filter
Total Inertia
FIR
Filter
Primary
Encoder
Position
Inertia
Adaption
704
Filtered
Trq Ref
690
689
Derivative
d
dt
Drive Status 2
(Fdbk Loss Sw0)
1
0
Motor Acceleration Feedback
1
InAdp LdObs Mode
1
Total Inertia
System Model
936
5
709
IA LdObs
Delay
FIR
Filter
Alternate
Encoder
Position
Derivative
d
dt
0
1
Else
Speed Sensor
Type
InertiaTrqAdd
708
Velocity
Velocity
Accel
Accel
0
Else
Sensorless
Torque Control – Inertia Adaption
Inertia Adaption
670
671
From Fdbk
[3E3]
[23H2]
[24a E2], [24b E2]
[3E1]
[23H1]
***INTERNAL CONDITION ONLY***
PF755 Rev_10.a
Page 25
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