
Rockwell Automation Publication 750-PM101B-EN-P - April 2022
33
Chapter 3 PowerFlex 755T Control Block Diagrams
Figure 12 - Voltage Reference Generator
1
2
3
4
5
6
B
A
D
C
FH
EG
I
Voltage Refere
n
ce Ge
n
e
rat
or
(V
olt
R
efGen)
Ca
lc
Rms
Pk
Ra
te
Li
m
it
x
Li
mit
1.
02
AC Lin
e
V
o
lt
age
[2
E
2
]
Vo
lt
Ct
rl [
F
2
]
49
DC
Bus R
a
te
Lmt
DC
B
u
s R
e
f Sel
45
2
50
DC
Bus C
o
mm
and
22
6
5V
d
c R
a
te
L
m
t
22
6
4
Vd
c Cmd Lmt
0
1
46
Au
to D
C
B
us Ref
48
DC
B
u
sR
e
f
Pres
et
Hi
g
h
Lo
w
Max Bo
ost
Vo
lt
a
ge
MA
X
In
ve
rte
r D
C
B
u
s L
imit
Vbu
sRe
fH
iLi
m
V
b
us
Re
fLow
L
im
V
b
us
O
ptR
ef
V
b
us
Ra
teLi
m
DC
Bus Re
f Selec
to
r:
0-
A
u
to
1-
M
a
nu
a
l
2- D
ro
o
p
Ct
rl
3- VA
R
Co
n
tr
o
l
0
1
MA
X
V
b
us
Li
mS
ts
Vbu
sRe
fL
m
td
Para
m
e
te
r
S
e
le
c
tio
n
47
ManD
CBus
R
e
fSe
l
An
lg
In
41
ManD
C Bus
An
lg
H
i
42
ManD
C Bus
An
lg
L
o
2
3
DroopVdcRef
Dro
opCt
rl [I
4
]
KV
ARV
d
cR
e
f
KVARCtrl [G2]
4
DBCVdcRef
Dyn
amicB
us
C
tr
l
[E
5]
trl
s
ef
y
trl
l
ilt
s
l
el
Vo
ltR
ef
Ge
n