Rockwell Automation PowerFlex 700S, Руководство пользователя, Страница: 248 / 318

B-14 Control Block Diagrams
PowerFlex 700S Phase II AC Drive User Manual - Publication 20D-UM006G-EN-P – July 2008
Interpolator
x
x
x
748
0 1 2
749 743
742
Gear Rat
[ N
]
[ D
]
745 746
PositRef EGR Mul
PositRef EGR Div
+
Rate Lim
753 754 755
LPass
Filter
756
744
747
762 764
P Gain
kp
768
I Gain
ki
s
770
Limit
772 773
774
+
Gear Rat
[ N
]
[ D
]
766 767
Link
763
765
Droop
771
Inv
&
Limit
0
318
775 776
Position Actual
Posit Actl Load
PositReg Integ
PositReg Droop
PositReg P Gain
XReg Integ Out
Position Status
XReg Integ LoLim
XReg Integ HiLim
Position Status
CoarsePosit Trgt
Position Control
(Interp Rev
)
Xsync Status
(Sync Pulse
)
Interp Position
Aux Posit Ref
Posit Offset
1
Posit Offset
2
Posit Offset Spd
X Offst SpdFilt
Position Control
(X
Offset Pol
)
Position Control
(XOff ReRef
)
PositRef EGR Out
Position Cmmd
Position Control
-
Interp
/Direct
(Task 2
)
Posit Load Fdbk
Posit FB EGR Mul
Posit FB EGR Div
Position Control
(Integ En
)
Position Control
(Integ Hold
)
XReg Spd LoLim
XReg Spd HiLim
*
*
*
Posit Ref Sel
Posit Spd Output
769
Position Error
from Speed
/Posit
Fdbk [
9H
3]
to Speed Control -
Regulator [
5
A
2
]
See Point
-t
o
-Point
Position Control Diagram page
8
*
&
740
01
157
03
Output Enable
Logic Ctrl State
(position enable
)
Logic Ctrl State
(position enable
)
1 2 3 4 5 6
B
A
D
C
F
E
H
G
I
Notch
II
R
796
Posit Gear Ratio
741
2
741
3
1
[1
5
H
5]
740
02
740
03
157
03
Calib
Const
Calib
Const
741
00
741
01
779 778
[1
5
H
5]
0
X Notch Attenu
X Notch FiltFreq
740
04
740
05
Motor Speed
Gear Output Spd
()
750
740
13
Coarse Spd Trgt
693
00
786
00
700
00
Motn Posit Sync
p
786
or p
700
must be linked to p
693
for
proper Interpolator operation
752 751
Interp AccelRate Interp Speed
Interp SyncInput
741
05
Position Status (XOffReRef Act
)
+
+
+
-
+
-
+
-
Position Fdbk
*
Position Control Xzero Preset
740
08
On the rising edge
(activation
) of p
741
bit
7
[1
5
H
5
] the
following bit assignments occur
:
1)
If p
740
bit
8
is set
, then p
763
,
p765
,
p744
,
and p
747
get
loaded with
[Position Fdbk
(p
762
) -
Abs Posit Offset
(p
757
)].
2)
If p
740
bit
8
is reset
,
then p
763
,
p765
,
p744
,
and p
747
get
loaded with the reference value
(prior to reference derivative
function in coordinate
[D
2
]).
757
Abs Posit Offset
This point is a delta change
. When the position loop is first
enabled the position command and feedback delta are zero
.
Δ
Δ
Δ
Δ
Δ
po s _control_inter_dir.ep s