
Rockwell Automation Publication 750-PM001J-EN-P - October 2014 371
PowerFlex 753 Control Block Diagrams Appendix A
Figure 7 - Speed Control - Reference (3)
Limit
520
Max Fwd Speed
Max Rev Speed
521
Max Speed Limit
Spd Ref After
Final Limit
[9A2]
Skip Bands
526
527
Skip Speed 1
528
529
Skip Speed Band
Skip Speed 2
Skip Speed 3
1
0
Drive Status 1
(Jogging)
S Curve Accel, Decel
Accel Time 1
Accel Time 2
539
Ramp
S Curve
Spd Options Ctrl
(Ramp Hold)
635
1
Spd Options Ctrl
541
Jog Acc Dec Time
Speed Comp Gain
666
667
Speed Comp Out
Speed
Comp
Speed Comp Sel
Ramped Ref
Rate Ref
0
665
596
Speed Rate
Ref
PsnReg Spd Out
Position Reg Output
0
935
18
1
0
Drive Status 1
(Stopping)
1
0
0
Limited Spd Ref
593
[6H4]
594
Ramped Spd Ref
1
0
PID Output Sel
(Speed Trim)
0
1079
Drive Status 1
(Jogging)
0
From
Process Ctrl
[20E3]
1093
PID Output Meter
From Posit Reg
[12I5]
843
X
555
935 17
0
1
Drive Status 1
(Jogging)
935 17
935 17
0
Spd Ref Scale
Final Speed Ref Limits
Speed Comp
PI Speed Trim
1
2
3
4
5
6
B
A
D
C
FE HG
I
Skip Bands
Start/Stop
Vector Ramp and Rate Select
588
589
SpdRef FltrGain
Spd Ref Fltr BW
Lead Lag
(kn * s)+ wn
s + wn
590
Spd Ref Filter
Speed Ref Filter
1,0
535
536
0,1
879
8
Drive Logic Rslt
(Accel Time 1, 2)
d
dt
2
Commanded
SpdRef
9
Decel Time 1
Decel Time 2
1,0
537
538
0,1
879
10
Drive Logic Rslt
(Decel Time 1, 2)
11
540
Speed Control
595
Filtered Spd Ref
0
1
2
2
≠2
945
2
At Limit Status
(MaxSpeed Lmt)
Speed Control – Reference (3)
Flux Vector
Stopping
or Not Active
Not Stopping
and Active
635
0
(Ramp Disable)
635
2(StpNoSCrvAcc)
Not Used
[29H3]
[29H3]
[20C2]
OR
Drive Status 1
(Running)
Drive Status 2
(Autotuning)
935 16
936
9
Traverse/
P-Jump
Sync
Speed
Change
Fiber Application
1120
Fiber Control
1121Fiber Status
1122
Sync Time
1126
P Jump
1125Max Traverse
1123
Traverse Inc
1124
Traverse Dec
PF753 Rev_10.a
Page 7
Spd FF
From
Psn Ref
[11I5]
x
848
Psn Gear Ratio
935 17
Drive Status 1
(Jogging)
0
1
0
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