Rockwell Automation Allen-Bradley PowerFlex 755T User Manual

42 Rockwell Automation Publication 750-PM101B-EN-P - April 2022
Chapter 3 PowerFlex 755T Control Block Diagrams
Figure 21 - Variable Frequency, SV Overview
Output Frequency
1 2 3 4 5 6
BA
D
C
FHEG
I
Variable Frequency (V/Hz), SV Overview (Freq Overview)
1914
VRef All
[I4]
Velocity Referencing (I/O) - Frequency
Velocity Control – Current/Bus Limiter
1
Fdbk [D5],
Proc 1 [E4],
Proc 1 [H3]
V/F Ramp and Rate Select
Ramp
S Curve
VRef Ramped
1923
Ramp Rate
Bus/Current
Limiter
and
Integrator
Limit
1898
Vel Limit Pos
Vel Limit Neg
1899
Max Speed
Limits
1961
Droop RPM at FLA
[NP Spd]
1
Convert
Electrical to
Mechanical Units
Convert
Mechanical to
Electrical Units
VRef Final
1933
u Slip RPM atFLA
490
Iq Feedback (pu)
LPF
491
Slip Comp LPF BW
1904Overspeed Limit
Limit
1898
Vel Limit Pos
Vel Limit Neg
1899 1904
Overspeed Limit
Variable
Boost
Override
Auto Tune
Override
Start/ Stop
Override
Vel Ctrl Options
1950
Accel Time 1
1915
Accel Time 2
1916
Decel Time 1
1917
Decel Time 2
1918
Jog Acc Dec Time
1896
VRef Accel, Decel Jerk
1919 1920
Velocity
Scale and
Status
Convert
Electrical to
Mechanical Units
365
3
At Limit Status
(OverSpd Lmt)
Torque
Proving
Override
Filtered (100 R/S)
Iq Feedback (pu)
X
X
[NP Spd]
1
Frequency Adder
Velocity
Limited
Mtr Cfg
Options
(Jerk Select)
15420
Rate
Control
VRef
Commanded
3
489
c Slip RPM atFLA
Vref Sel
Vref All
Vref
MOP
Process Control
PID
9:13
PID Output Meter
1892
VRef Selected
Jog Speed 1
1894
Jog Speed 2
1895
PID Output Sel
9:14
V/Hz
Current
Processing
Motor
1
Display
Filter
1942
1044
Vel Fb Active
Motor Vel Fb
VCL CReg C/U Sel
444
2
VRef Ramp In
VelRamp Rate
Vel Droop
Ref NF2
948 950 949
951
Ref NF2 Freq
Ref NF2 Depth
Ref NF2 Width
Ref NF2 Gain
Ref NF1
6
943 Ref NF1 Width
954
Ref NF1 Freq Act
956
Ref NF1 Depth Act
957
Ref NF1 Gain Act
From Anti-Sway [D2]
Limit
1898 1899
Limit
1898 1899
Vel Limit Pos
Vel Limit Neg
Vel Limit Pos
Vel Limit Neg
0
0
420
14
1
Mtr Cfg Options
(SlipCompSclr)
'
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 Freq Overview

Rockwell Automation Allen-Bradley PowerFlex 755T Specifications

General

Brand	Rockwell Automation
Model	Allen-Bradley PowerFlex 755T
Category	DC Drives
Language	English