Rockwell Automation Allen-Bradley PowerFlex 755T

34 Rockwell Automation Publication 750-PM101B-EN-P - April 2022
Chapter 3 PowerFlex 755T Control Block Diagrams
Figure 13 - Voltage Control
1 2 3 4 5 6
BA
D
C
FHEG
I
Voltage Control (VoltCtrl)
Auto Gain
Calculation
PI Regulator
55 56
Volt Reg BW
Volt Reg Damping
0
1
54
Volt Reg C/U Sel
0
1
59
u Volt Reg Ki
57
u Volt Reg Kp
c Volt Reg Ki 60
c Volt Reg Kp
58
DC Bus Command
50
VoltRefGen [G3]
Internal Bus Capacitance
Metering [D5]
DC Bus Obs A[2]
52
Ext Bus Cap
VbusErr
VbusRegKi
VbusRegKp
IqRefVbusReg
Volt Reg C/U Sel Selector: 0- Calculated 1- User Entered
Total Sys Cap
DcBusObs [C1]
BusRegIntegTerm
BusRegPropTerm
BusObsCong
320
3
Port 0,DC Bus Volts
0,1
2
DC Bus Obs
[H5]
BusObs Volt Est
BusObsCong(320):
0- Disabled 1- BusObsOnly. 2- BusObsVltEst.
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 VoltCtrl