6
-70
PI Control Block
The following diagram shows the PI control block in the Inverter.
Fig 6.43 PI Control Block
Opt
ion C
a
rd
Se
ri
a
l C
o
m
F
requ
en
c
y
r
e
fer
e
n
c
e
us
ing mul
ti
-s
te
p
c
o
mm
and
Pr
opo
rt
io
nal
ga
in
b5-
02
Mu
lt
i-
func
ti
on
i
npu
t
PI
co
nt
rol
c
anc
el
s
ig
nal
is
ON.
P
I i
s
OFF unde
r
th
e
f
o
llo
w
in
g
cond
it
ions
:
b
5
-01=
0
D
u
ri
ng
JOG co
mm
a
nd i
n
put
PI
p
ri
m
ar
y
del
ay
ti
me
p
a
ra
me
te
r
b5-
08
Out
put
f
requen
cy
Te
rm
in
a
l A
1
F
req
uen
c
y
r
e
fer
e
n
c
e
te
rm
in
al
A
2
P
I fe
ed
bac
k
I
-ti
m
e
b5-
03
I-
tim
e
l
im
it
PI
L
imi
t
P
I lim
it
b5
-06
U
pper
l
im
it
F
m
ax x 109%
PI
inpu
t vol
u
me
(U
1-
36)
P
I o
ffs
e
t
(b5
-07
)
P
I ou
tp
ut
mo
ni
to
r
(U
1-3
7
)
PI
c
o
m
m
a
n
d
(U
1-
38)
Fr
equ
ency
re
fe
re
nce (
U
1-
01)
PI
SF
S
C
a
n
ce
l
