PowerFlex Digital DC Drive User Manual -
Publication 20P-UM001C-EN-P - July 2008
D-10
Control Block Diagrams
Speed Feedback
S
pe
ed
A
H
+
-
S
peed Feedbac
k
S
peed F
eed
ba
ck
Lo
ss
Ar
m
a
t
u
re F
eed
ba
ck
Byp
ass
CEMF
Motor
DC T
a
chometer
Digit
a
l Encoder
T
a
ch
Encoder
DC T
a
ch
Ar
m
a
t
u
re
Inde
x
S
tor
ing
S
peed
V
olt
a
ge
P45
8
S
pdReg FB Byp
ass
P175
R
a
ted Motor
V
olt
P562
Anlg T
a
ch G
a
in
P56
3
Anlg T
a
ch Zero
P2
33
O
u
tp
u
t V
olt
a
ge
P414 =
3
Fd
b
k De
vice
Type
P414 = 2
Fd
b
k De
vice
Type
P414 = 1
Fd
b
k De
vice
Type
P651
Encoder
S
t
a
te
P421
PD O
u
tp
u
t PID
P169
Encoder PPR
P652
Encoder Err Chk
P122
S
pd F
eed
ba
ck
P175
R
a
ted Motor
V
olt
P456
Fld W
e
a
ke
n R
a
tio
P457
S
pd Fd
b
k Control
P911
Z Ch
a
nnel En
ab
le
P162
M
a
x F
eed
ba
ck
S
pd
P455
S
pd Fd
b
k Error
A+
A-
B+
B-
Z+
Z-
COM
+V
P121
S
pd F
eed
ba
ck
Pct
P420
Encoder
S
peed
P140
8
T
a
chometer
S
peed
