Rockwell Automation Publication 750-PM101B-EN-P - April 2022 71
Chapter 3 PowerFlex 755T Control Block Diagrams
Figure 50 - Torque Control – Current, for Permanent Magnet Motor
1
2
3
4
5
6
BA
D
C
FHEG
I
Torque Control - Current, for Permanent Magnet Motor (Cur PM)
Power
Unit
Thermal
Protection
Torque Limit Pos
Torque Limit Neg
Regen Power Lim
{Regen PwrLmt}
Bus
Regulator
Calc
Pwr
Te
VelFb Active
Active Pos
Torque Limit
Active Neg
Torque Limit
Limit
Max
Min
Trq Ref Filtered
Trq Ref Limited
Active Cur Lim
Limit
Rate Lim
Motor Power Lim
{Mtrng PwrLmt}
Torque
Current
Ref
Current Rate Lim
Pk Torque Iq Current Limit
Voltage Ref/
Limit
Generation
Current Limit 1
Current Lmt Sel
Current Limit 2
Thermal Mgr Current Limit
224
221
222
223
227
20872080
+
+
1042
229
230
2084
2083
Neg
Limit
Pos
Limit
365 21
At Limit Status
22
Trq Pos Lmt
Trq Neg Lmt
365 17
At Limit Status
18
TrqCurPosLmt
TrqCurNegLmt
Flux Vector
Parameter
Selection
Fdbk [G2]
Invert IT [D2]
Trq Filt [H2]
Fdbk [C6]
Cur IPM [E2]
-1
23
24
Mtrng PwrLmt
Regen PwrLmt
25
26
Cur Lmt FV
Therm RegLmt
27
28
BusVltgFVLmt
Mtr Vltg Lkg
{BusVltgFVLmt}
{Mtr Vltg Lkg}
{Cur Lmt FV}
{Therm RegLmt}
101
Ld Obs [C2]
52
TrqRefPosLimActvTrqRefNegLimActv
51
IqsRefLmtd
ActvCurLim
Te
Id
Calc
Voltage
Limit
Te
Iq
Calc
Id
Limit
Id
Current
Ref
255
Scale
RMS
16
420
0
1
Z
-2
Mtr Cfg Options
(IqDelay)
Calc
I
T
,Id
Iq
Overview VarCtrl PFC Vector Overview PRef Move Prof Ind 2 VelRefCAM Ld Obs Cur IPM MOP Logic
Metering DroopCtrl CurPwrLmt Freq Overview PRef2 Roll Psn VRef Vect Friction Comp Proc 1 22Series IO Digital Invert
PLL DBC CurrCtrl CBI Metering PReg Spindle Ref Move Trq RefCAM Proc 2 22Series IO Digital Motor I2T
PwrLoss VoltRefGen LscCtrlCfg Fdbk Psn PLL VRef Overview VReg Vect Trq Ref AntiSway 11-Series IO Digital High Speed Wizard
LscData VoltCtrl DriveDerating Homing Psn CAM VRef Sel Trq Overview Trq Filt Oil Well 1 22-Series IO Analog
CurRefGen DCBusObs PRef1 Prof Ind 1 VRef All Trq Ref Sel Cur IM SPM Oil Well 2 22-Series IO Analog Cur IPM
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