Rockwell Automation Allen-Bradley PowerFlex 755T

Rockwell Automation Publication 750-PM101B-EN-P - April 2022 33
Chapter 3 PowerFlex 755T Control Block Diagrams
Figure 12 - Voltage Reference Generator
1 2 3 4 5 6
BA
D
C
FHEG
I
Voltage Reference Generator (VoltRefGen)
Calc
Rms
Pk
Rate Limit
x
Limit
1.02
AC Line Voltage
[2E2]
VoltCtrl [F2]
49
DC Bus Rate Lmt
DC Bus Ref Sel
45
2
50
DC Bus Command
226 5Vdc Rate Lmt
226 4
Vdc Cmd Lmt
0 1
46Auto DC Bus Ref
48
DC BusRef Preset
High
Low
Max Boost
Voltage
MAX
Inverter DC Bus Limit
VbusRefHiLim
VbusRefLowLim
VbusOptRef
VbusRateLim
DC Bus Ref Selector: 0- Auto 1- Manual 2- Droop Ctrl 3- VAR Control
0 1
MAX
VbusLimSts
VbusRefLmtd
Parameter
Selection
47
ManDCBusRefSel
Anlg In
41
ManDC BusAnlgHi
42
ManDC BusAnlgLo
2 3
DroopVdcRef
DroopCtrl [I4]
KVARVdcRef
KVARCtrl [G2]
4
DBCVdcRef
DynamicBusCtrl [E5]
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 VoltRefGen