
Rockwell Automation Publication 750-PM001J-EN-P - October 2014 405
PowerFlex 755 Control Block Diagrams Appendix A
Figure 39 - Speed Control - Reference (2)
Drive Status 1
(Jogging)
935 17
0
2
Max
X
1
1
0
0
Direction Mode
308
0
Unipol
Fwd
Unipol
Rev
(+1)
(-1)
Spd Ref
From Spd Profiler
[16H2]
Actv SpTqPs Mode
≠6
6
1
Trq Prove Status
(Micro Psn)
1103 2
0
x
MicroPsnScalePct
1112
1
0
1
Spd Ref Sel Sts
(Decel Lmt Sw)
0
571
Preset Speed 1
592
0
Selected Spd
Ref
PI Speed Exclusive
Speed Profiling Jogging
From
Spd Ref (1)
[5I2]
Lift App (Micro Positioning)
Homing Status
(Home Enabled)
Homing
Bipolar
Limit
522
Max Fwd Speed
Max Rev Speed
523
520
521
Min Fwd Speed
Min Rev Speed
Limited Spd Ref
593
Internal Load Dependent
Max Limit
(Lift Application)
Limit
0
Direction Mode Control
Limit Switch Control
Speed Ref Limits
1
2
3
4
5
6
BA
D
C
FE HG
I
To Spd Ref,
Process Ctrl
[7A2], [8A2], [28B2]
591 13 591 14
0
1
0
1,0
556
Jog
Speed 1
557
0,1
1
1
1093
PID Output
Meter
&
1079
PID Output Sel = 1
935
16
Drive Status 1
Running
PID Control
PID Enable
Jog
Speed 2
Drive Logic
Rslt
Jog1
Jog2
Spd Ref Sel Sts
(End Lmt Sw)
Speed Control – Reference (2)
Profiler
Position
Speed
Speed Excl
879 2
19
1066 0
Rev Disable
Unipolar
313
[28B2]
OR
[28E2]
[23D5]
[35H3]
1210
10
1
0
Profile Status
Position
Mode
Foward
Command
Logic
Autotune
Control
0,1
70
Autotune
Autotune Control
Spd Ref
From Homing
[17H2]
1103 5
Trq Prove Status
(LoadTestActv)
Actv SpTqPs Mode
313
[23D5]
Position
(>= 6)
Non-position
(< 6)
Position Control
(Add Spd Ref)
1
0
721
10
0
Position Control – Add Speed Reference Option
2, 3, 4
x
848
Psn Gear Ratio
x
848 Psn Gear Ratio
Max Speed
Limits
Min Speed
Limits
PF755 Rev_10.a
Page 6
Boost Freq Ena
VF (V/Hz) Only
Variable
Boost
0
1
1543
VB
Frequency
730
1
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