Rockwell Automation Allen-Bradley PowerFlex 755T

70 Rockwell Automation Publication 750-PM101B-EN-P - April 2022
Chapter 3 PowerFlex 755T Control Block Diagrams
Figure 49 - Torque Control – Current, for Induction Motor
1 2 3 4 5 6
BA
D
C
FHEG
I
Torque Control - Current, for Induction Motor (Cur IM)
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
Port 0
Pri MtrCtrl Mode
Flux Cur Fb
Active Cur Lim
Limit
Calc
Te
Iq
Rate Lim
Motor Power Lim
{Mtrng PwrLmt}
Torque Current Ref
Current Rate Lim
Min
Pk Torque Iq Current Limit
Voltage Ref/
Limit
Generation
Current Limit 1
Current Lmt Sel
Current Limit 2
Active Iq Current Limit
Thermal Mgr Current Limit
224
221
222 223
227
20872080
+
+
65
1042
229
230
2084
2083
Neg
Limit
Pos Limit
255
VF or SV
(0-2,4,5,7,8)
Flux Vector
(3,6)
365 21
At Limit Status
22
Trq Pos Lmt
Trq Neg Lmt
365 17
At Limit Status
16
TrqCurPosLmt
TrqCurNegLmt
Flux Vector
Parameter
Selection
Fdbk [G2]
Invert IT [D2]
Trq Filt [H2]
Fdbk [C6]
Cur IPM [E2]
-1
Flux
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
9
Scale
RMS
ActvCurLim
-1
420
Mtr Cfg Options
(IqDelay)
0
1
Z
-2
Calc
I
T
,Id
Iq
Calc
Iq,Id
I
T
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 IM SPM