Rockwell Automation 21G PowerFlex 750-Series AC Drives Programming Manual - Manual (Page 366)

366 Rockwell Automation Publication 750-PM001J-EN-P - October 2014
Appendix A PowerFlex 753 Control Block Diagrams
Figure 2 - VF, SV Overview
PowerFlex 753
VF (V/Hz), SV Overview
PI Regulator
Speed Contol –
Trim R
egulator (page: 9)
66
3
66
4
VHzSV Spd Reg Kp VHzSV Spd Reg Ki
131
Active Vel Fdbk
Final Speed Ref
597
623
VHzSV
SpdTrimReg
PID Regulator
Process Control (pages: 19,20)
108
6
108
7
PID Prop Gain
PID In
t Time
108
8
PI
D Deriv Time
10
91
PID F
d
bk Meter
PI
D Ref
M
e
te
r
10
90
10
84
PI
D
L
P
Fil
ter BW
109
3
PID Output Meter
10
67
PID Ref Sel
10
72
P
ID Fd
bk
Se
l
PID
R
eference Selec
tion
PID
F
eedback Selec
tion
Limit
( PID Output Meter )
Speed Ref Se
le
ct
ion
&
Limi
ts
54
5
55
0
572 573 574 575 577 576
Speed Ref A
Sel
Speed Ref B
Sel
Pr
es
et Speed 2
Pr
es
et Speed 3
Pr
es
et Speed 4
Pr
es
et Speed 5
Pr
es
et Speed 6
Pr
es
et Speed 7
571
Pr
es
et Speed 1
60
8
TrmPct RefA Sel
61
2
TrmPct RefB Sel
60
0
Trim Ref A
Sel
60
4
Trim Ref B
Sel
592
Selected Spd Ref
PID
Ou
tp
ut Sel
10
79
PID S
peed
Ex
clusive
S
election
Jogging Select
ion
556
Jog Speed 1
55
7
Jog Speed 2
Lin
ear
Ramp & S Curve
PID Ou
tp
ut Sel
10
79
P
ID Spe
ed
Tr
im
Sele
ction
594
Ramped S
p
d Ref
Speed Control –
R
eference (pages: 4-6,8,9)
x
+
Sp
ee
d
Ref
Tr
imPct Re
f
Tr
im
Re
f
+
+
V/Hz
Current
Processing
Mo
to
r
( Motor Speed Ref )
S
lip
Comp
S
peed
Trim
Reg
Sele
ction
Limit
+
+
Bus/Current
Limiter
(Fr
eq R
am
p)
+
+
( Freq Adder )
( Ramp Input Ref )
( Ramp Rate )
1
O
utput
Fre
que
ncy
621
Slip RPM at FLA
+
-
Dr
oop
62
0
Dro
op RPM at
FLA
Limit
520
M
a
x Fwd
Speed
52
1
Max Rev Speed
524
Overspee
d Limit
PF753
Rev_10.
a
Page 2
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B
A
D
C
F
E
H
G
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