Rockwell Automation Allen-Bradley PowerFlex 755T

Rockwell Automation Publication 750-PM101B-EN-P - April 2022 37
Chapter 3 PowerFlex 755T Control Block Diagrams
Figure 16 - Current/Power Limits
1 2 3 4 5 6
BA
D
C
FHEG
I
Curr/Pwr Limits (CurPwrLmt)
AC Line Frequency
PLL [H3]
DC Bus
Current Limit
Calculation
Port 0
DC Bus Volts
Metering [D5]
3
Vq
Metering [D1]
Vd
Metering [D1]
Total Inductance
1
Available
Power
Calculation
Iq Current
Limit
Calculation
Id Current
Limit
Calculation
AC Line kW
LscData [D2]
13
106 107
Regen Pwr Avail
Motor Pwr Avail
Id Cmd Lmt
8226
Iq Cmd Lmt
6226
Iq Ref Lmtd
Current Lmt
0226
226
Mtrng PwrLmt
2
226
Regen PwrLmt
3
Id Cur Lim Abs
Iq Cur Lim Abs
101 Cur Lmt Command
100
Current Limit
PFC [H2]
PFC [H4]
CurrCtrl [11F2]
67
Active Cur Cmd
CurrCtrl [11F4]
Reactv Cur Cmd
73
ILmtUsrSts
IqVbusCurLim IdVbusCurLim
Derated Amps
DriveDerating [H3]
28
VarCtrl [G5]
72 KVAR Command
71
KVAR Available
45
DC Bus Ref Sel
104
Regen Power Lmt
105
Motor Power Lmt
DBCRegenPwrLimActv
DynamicBusCtrl [H2]
DBCMtrngPwrLimActv DynamicBusCtrl [H4]
4
3
0,1,2,
4
3
0,1,2,
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 CurPwrLmt