Rockwell Automation 20G PowerFlex 750-Series AC Drives - Manual (Page 398)

398 Rockwell Automation Publication 750-RM002B-EN-P - September 2013
Chapter 6 Integrated Motion on the EtherNet/IP Network Applications for PowerFlex 755 AC Drives
Torque Control Overview - Interior Permanent Magnet Motor
Torque Control –
Overview
Interior Permanent Magnet Motor (IPM)
1 2 3 4 5 6
B
A
D
C
F
E
H
G
I
PF
755 Rev
_9.a
Page
21b
Torque
Reference
Scale
and Trim
Spe
e
d /
Torque / Position
Mode Select
+
-
Torque
Limit
Inertia
Adaption
Torque
Limit Sele
ct
+
+
Bus
Voltage
Regulator
T
o
rque St
ep
Spd Reg PI Out
Torq Ref 1 Torq Ref 2
Torq Trim
Speed
Reg
Output
Trim
Inertia Comp
R
ege
n Po
we
r
L
imit
Pos Torque Limit
Neg Torque
Limit
Notch Filter
F
iltered
Tor
que Ref
+
+
Select
Drive Voltage
and
Current Ratings Brake/Bus Config DC
Bus Vo
ltag
e
Cur
ren
t
Limit
Rate Limit
Iq
Cur
ren
t
Ref
Pwr
Te
Calc
Power, Torque,
and
Current
L
imit Reference Generation
Current
Limit
Proc
es
sing
and
Selection
+
Load
Observ
er/
Estimator
Fr
iction
Comp
+
Te
Id
Calc
Vo
lta
g
e
Li
mit
Cur
ren
t
Limit
Id
Cur
ren
t
Ref
Te
Iq
Calc
Id