Rockwell Automation 21G PowerFlex 750-Series AC Drives Programming Manual - Manual (Page 379)

Rockwell Automation Publication 750-PM001J-EN-P - October 2014 379
PowerFlex 753 Control Block Diagrams Appendix A
Figure 15 - Torque Control - Overview (IM)
Torque Control –
Overview
Induction Motor (IM)
1 2 3 4 5 6
B
A
D
C
F
E
H
G
I
Torque
Reference
Scale
and Trim
Speed / Torque / Position
Mode Sel
ect
Torque
Limit
Torque
Limit Select
+
+
Bus
Voltage
Regulator
Torque Step
Spd Reg PI Out
Torq Ref 1 Torq Ref 2
Torq Trim
Sp
eed
Reg
Output
Trim
Inertia Comp
Regen Power Limit
Pos Tor
que
L
imit
Neg Tor
que Limit
Notch Filter
Filte
red
Torque
Ref
+
+
Select
Drive Voltage and
Current Ratings Brake/Bus Config DC
Bus
Vo
lta
ge
Te
Iq
Calc
Current
Li
mit
Ra
te
Limit
Tor
que
Current
Re
f
Pwr
Te
Calc
Power, T
o
rq
ue, and Current Limit Reference Generation
Current
Limit
Processing
and
Selection
PF753
Rev_10.
a
Page 15
a