Rockwell Automation Allen-Bradley PowerFlex 755T

Rockwell Automation Publication 750-PM101B-EN-P - April 2022 35
Chapter 3 PowerFlex 755T Control Block Diagrams
Figure 14 - DC Bus Observer
1 2 3 4 5 6
BA
D
C
FHEG
I
DC Bus Obs
X
X
cBus Obs Ki
324
325
BusObs Curr Est
X
0
1,2
320
1,20
BusObs Volt Est
1,2
323
u BusObs Ki
c BusObs Kp
u BusObs Kp
+
-
X
X
Port 0
DC Bus Volts
0
1.0
3
VoltCtrl [F3]
LscCtrlCfg [C5] IqRefDcBusObs
0
BusObsCong(320):
0- Disabled 1- BusObsOnly. 2- BusObsVltEst.
+
-
X
322 321
Limit
IqRefVbusReg
Total Sys Cap
VoltCtrl [C4]
101
Cur Lmt Command
-1
BusObsCong
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 DCBusObs