Rockwell Automation 20B PowerFlex 70, PowerFlex 700 Reference Manual - Manual (Page 49)

Block Diagrams
Rockwell Automation Publication PFLEX-RM001H-EN-P - June 2013 49
Figure 6 PowerFlex 700VC Block Diagrams (6)
Min Max
+
Abs Min
0 1 2 3 4 5 6
427
X
+
430 431 434
124
88
F
rom Speed Regulator
[5H4]
T
orque Ref A
T orq Ref A Div T
orque Ref B
T
orque Ref B Mult
F
rom T
orque T
rim
[7H5]
Spd/T
orq ModeSel
0
Po
w
e
r
Limit Calc
Bus V
olt
Regulator
Limit
161 27 12
153
25
Min Max
436 437
IIR
Notch
420
Notch Filter K
Limit
Speed F
eedbac
k
DC Bus
V
oltage
Rated V
olts
Regen P
o
w
er Lim
P
os T
orque
Limit
Neg T
orque
Limit
Bus Reg Mode A
440 Control Status
24
Commanded T
orque
IT
-openloop
Calc Is
Iq
235/7
P
eak
T orq Current Limit (Amps RMS x 10) Flux Current
Min
148 12
P
o
w
er Unit Data
Limit
Rate Lim
441
154
Current Rate Limit
Mtr
T
or Cur Ref
T
orque Control
(0.25ms)
to
Motor Control
/
T
orque
Current
42
Motor NP Amps
NegT
rqCurLim 440
4-7
419
Notch Filter F
req
13 162
Bus Reg Mode B DC Bus Memor
y
0
5
>0 0
419
Notch Filt F
req
>0
0
0
08
Process PI Config
-1
Iq Actual Lim
Limit
Iq Scale *Iq Rated
Dr
iv
e Rated
Iq Actual Lim
ki s
I Gain
+
527
T
orque Reg Kp
528
T
orque Reg Ki
Min
28
Rated Amps
Iq Rated
T orque Ref Out
Activ
e Cur Limit
Ther
mal Manager
T orque Est.
235/7
1 3
Current Lim
V
a
l
Output Current
151 150
Output F
req
PWM F
requency
DC Bus
V
oltage
Dr
iv
e OL Mode
NTC
Mi
1
235/7 234/6
234/6
235/7
04
03
234/6
518
Activ
e PWM F
req
517
235/7 234/6
P
osT
rqCurLim 440
1
521
234/6
X
(-1)
235/7
521
234/6
0 1
0
14
124
0 1
526
0
T orque Reg Enab
le
Obser
v
e
Sts
+
-
kp
P Gain
Output F
requency
4
T
orque Current
5
Flux Current
235/7 234/6
506
235/7 234/6
509
Vds Cmd Vqs Cmd
41
Motor NP
V
olts
43
Motor NP Her
tz
44
Motor NP RPM
45
Motor NP P
o
w
e
r
49
Motor P
oles
62
IR V
oltage
Drop
63
Flux Current Ref
64
Ixo V
oltage
Drop
529
T orque Ref
T
rim
T
orque
Estimator
Calc
Motor NP and T
uning
Data
Motor NP T o
rque
,
Flux,Rs
,
Lo
,Ls
Calc
Rs Gain Motor NP
T
orque
Motor NP Flux Ls Gain Lo Gain Iqs Rated