Rockwell Automation 21G PowerFlex 750-Series AC Drives Programming Manual - Manual (Page 403)

Rockwell Automation Publication 750-PM001J-EN-P - October 2014 403
PowerFlex 755 Control Block Diagrams Appendix A
Figure 37 - Speed Control - Reference Overview
1 2 3 4 5 6
B
A
D
C
F
E
H
G
I
+
Spd Ref A Trim Ref A
Trim % Ref A
Ref A Auto
+
Spd Ref B Trim Ref B
Trim % Ref B
Ref B Auto
+
ENet Spd Ref
DPI Ports
1-6 Manual
Spd Ref
Co
mma
nd
Limit
Selected Spd Ref
Ski
p
Bands
Limited Spd Ref
Direction
Mode
Vel Ref
Filter
x
Speed Comp
Pos Reg Output Filter
Speed Ref
Scale
From
Position
Re
gu
la
to
r
Limi
t
Iner
tia
Co
mp
V
e
lo
city Reg Ref
Inerti
a Comp
Tor
que
R
ef
Mo
to
r Sp
d Ref
From
PI
R
e
gulat
or
(Trim Mode)
From
PI Regulator
(Exclusi
ve Mode)
Pro
filing/
Jog
ging/
Lift
App/
Autotun
e/
Homin
g/
Ove
rrides
VF or
SV
Droop
From
Slip Com
p
Fre
quency Re
f
Lim
it
From
Velocity Trim
Regulator
M
ax Spe
ed +
Over
speed Li
mit
From
PI Regulator (Trim Mode)
Fl
ux
Vec
tor
Limi
t
Max Speed
Max Speeds
Spe
ed Reference Selection
Speed Reference Control
Ramped Vel Ref
Limit Sw
itch
Contro
l
Spe
ed Ref
Stop /
Torque
Pr
oving
Vector Ramp S-Curve
Li
near
Ra
mp
&
S Curve
Virtual
Encoder
V/F Ramp
S-Curve
Li
near
Ra
mp
&
S Curve
Vector Speed Control
V/F Speed Con
trol
Ra
te
Select
Sp
eed
Status
Speed Feedback
Vector Ramp Status
F/F Ramp Status
St
at
us
Ramped
Speed Ref
Preset
s 3-7 Auto
From
Pt-Pt Profile Generator
Speed Control –
R
eference Overview
Friction Comp
Fri
cti
on Com
p
Tor
que Ref
640
Filtered Spd
F
dbk
Fiber App.
PF
755 Rev
_10.a
Pa
ge 4