
368 Rockwell Automation Publication 750-PM001J-EN-P - October 2014
Appendix A PowerFlex 753 Control Block Diagrams
Figure 4 - Speed Control - Reference Overview
1
2
3
4
5
6
B
A
D
C
FE HG
I
+
Spd Ref A
Trim Ref A
Trim % Ref A
Ref A
Auto
+
Spd Ref B
Trim Ref B
Trim % Ref B
Ref B
Auto
+
ENet Spd Ref
DPI Ports 1-6 Manual
Spd Ref
Command
Limit
Selected Spd Ref
Skip
Bands
Limited
Spd Ref
Direction
Mode
Vel Ref
Filter
x
Speed
Comp
Pos Reg
Output
Filter
Speed Ref
Scale
From
Position
Regulator
Limit
Velocity Reg
Ref
Motor Spd Ref
From
PI Regulator
(Trim Mode)
From
PI Regulator
(Exclusive Mode)
Jogging/
Oil Pump/
Autotune/
Homing/
Overrides
VF or SV
Droop
From
Slip Comp
Frequency
Ref
Limit
From
Velocity Trim
Regulator
Max Speed +
Overspeed Limit
From
PI Regulator
(Trim Mode)
Flux
Vector
Limit
Max Speed
Max Speeds
Speed Reference Selection
Speed Reference Control
Ramped
Vel Ref
Limit
Switch
Control
Speed Ref
Stop
Vector Ramp S-Curve
Linear
Ramp &
S Curve
V/F Ramp S-Curve
Linear
Ramp &
S Curve
Vector Speed Control
V/F Speed Control
Rate
Select
Speed
Status
Speed Feedback
Vector Ramp Status
F/F Ramp Status
Status
Ramped
Speed Ref
Presets 3-7 Auto
From
Pt-Pt Profile
Generator
Speed Control – Reference Overview
Fiber
App.
PF753 Rev_10.a
Page 4
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