
42
Rockwell Automation Publication 750-PM101B-EN-P - April 2022
Chapter 3 PowerFlex 755T Control Block Diagrams
Figure 21 - Variable Frequency, SV Overview
O
ut
put
F
req
uenc
y
1
2
3
4
5
6
B
A
D
C
FH
EG
I
Va
riable F
req
uen
cy
(V
/Hz)
, SV
Over
view
(Fr
eq Ove
rv
iew)
19
14
VRef A
ll
[I
4
]
Ve
lo
city
R
e
fere
n
cing
(I/O) -
Fre
q
u
en
cy
Ve
lo
city
C
o
n
tro
l –
Cur
ren
t/Bus L
imiter
1
F
dbk
[D
5]
,
Pr
oc
1
[E4
],
Pr
oc
1 [H
3]
V/F Ram
p
and
Rate
Selec
t
Ramp
S C
u
rv
e
VRef
Ramp
ed
192
3
Ra
m
p
R
a
te
Bus/Cur
ren
t
Li
m
ite
r
an
d
In
te
g
rato
r
Li
m
it
18
98
Ve
l L
imit
P
o
s
Ve
l L
imit
N
e
g
18
99
Max
Sp
ee
d
Li
mit
s
196
1
Dr
oo
p
R
P
M
at
FL
A
[N
P Sp
d]
1
C
o
nv
er
t
E
le
ctri
c
a
l to
M
e
ch
a
n
ic
a
l U
n
its
Co
nv
er
t
M
e
ch
an
ic
al t
o
El
ect
ri
c
al
U
n
it
s
VRef
F
ina
l
19
33
u
Sl
ip RP
M
at
FL
A
490
Iq F
ee
dba
c
k
(
pu
)
LP
F
49
1
Slip C
o
mp
LPF BW
19
04
Ove
rsp
e
e
d
Limit
Li
mit
189
8
Ve
l L
imit
P
o
s
Ve
l L
imit
N
e
g
189
9
190
4
Ove
rsp
e
e
d
Limit
Vari
a
b
le
Boo
st
Ove
rride
Aut
o
T
u
ne
Ove
rride
Sta
rt
/ Sto
p
Ove
rride
Ve
l Ct
rl O
p
ti
ons
195
0
A
cce
l Time
1
191
5
A
cce
l Time
2
191
6
Dece
l T
ime
1
191
7
Dece
l T
ime
2
191
8
Jo
g
Ac
c De
c T
ime
189
6
VRef
A
c
ce
l,
D
ec
el
Jer
k
191
9
192
0
Vel
o
c
it
y
Sc
ale a
n
d
Sta
tu
s
C
o
nv
er
t
El
ect
ri
c
al
to
M
e
ch
an
ic
al U
n
it
s
365
3
At
L
imit
S
tat
us
(Ov
e
rS
p
d
Lmt
)
To
rq
ue
P
rov
in
g
Ove
rri
d
e
F
ilter
ed (
100 R/S
)
Iq F
eedba
c
k (pu
)
X
X
[N
P Sp
d]
1
Fre
qu
ency
A
d
d
e
r
V
e
lo
city
Li
m
ite
d
Mt
r Cfg
O
pti
ons
(J
e
rk
Se
le
c
t)
15
420
Ra
te
Co
ntr
o
l
VRef
Com
m
an
d
e
d
3
48
9
c S
lip
RP
M a
tF
L
A
Vr
e
f S
el
Vr
e
f A
ll
Vr
e
f
MOP
Pr
o
c
e
ss
Co
ntr
o
l
PI
D
9:
13
PI
D
O
u
tput
Me
te
r
18
92
VRef
S
e
le
c
te
d
Jo
g
Sp
ee
d
1
189
4
Jo
g
Sp
ee
d
2
189
5
P
ID
Ou
tp
ut
Se
l
9:
14
V/
H
z
Cu
rr
e
n
t
P
ro
c
es
si
n
g
Mo
to
r
1
Di
spl
a
y
Fi
lt
e
r
19
42
104
4
Ve
l F
b Ac
ti
v
e
Mot
o
r V
e
l F
b
VCL CR
eg C/
U Sel
44
4
2
VRef
Ram
p
I
n
Vel
R
a
m
p
Ra
te
Vel
Dr
o
o
p
Re
f N
F
2
948
950
949
95
1
Re
f NF2
F
re
q
Re
f NF2
De
p
th
Re
f NF2
W
id
th
Re
f NF2
G
a
in
Ref
N
F
1
6
943
Ref
N
F
1 W
idt
h
954
Ref
N
F
1
Freq A
c
t
95
6
Re
f N
F
1
D
e
pt
h Ac
t
95
7
Re
f N
F
1 Ga
in Act
Fro
m
An
ti
-S
w
a
y
[
D
2
]
Li
mit
18
98
18
99
Li
mit
189
8
189
9
Vel
Limi
t
Po
s
Vel
L
imi
t
Ne
g
Vel
Limi
t
Pos
Vel
Limi
t
Ne
g
0
0
420
14
1
Mtr
Cfg Option
s
(S
li
p
C
o
m
pSc
lr
)
'
trl
s
ef
y
trl
l
ilt
s
l
el
Fr
eq Ov
er
view