Allen-Bradley PowerFlex 70 Enhanced Control

144 PowerFlex 70EC Block Diagrams
0.0 Hz
23 - Speed Reference
0.0
415 - Encoder Speed
0.0 R/s
449 - Speed Desired BW
0.10 Secs
450 - Total Inertia
6.3
446 - Kp Speed Loop
7.8
445 - Ki Speed Loop
40.0 RPM
121 - Slip RPM @ FLA
4
49 - Motor Poles
0.0
451 - Speed Loop Meter
Open Loop
80 - Feedback Select
0.0 Hz
454 - Rev Speed Limit
10.0
83 - Overspeed Limit
60.0
82 - Maximum Speed
0.0 Hz
1 - Output Freq
X X
+ – + +
+ + + +
+ +
+ –
Limit
Limit
Kp
Ki
s
P Gain
I Gain
<0
–1
–1
From Speed Feedback Select
1.5
120
Anti-
Windup
Bus
Voltage
& Current
Limit
Open Loop
Slip Comp
Encoder
0 1 3
Writing Speed Desired
Bandwidth calculates
Kp Speed Loop and
Ki Speed Loop values
Speed Control
FVC Vector
0.0
451 - Speed Loop Meter
0.0 %
24 - Commanded Torque
Torque Reference
Select
Torque CurrentTorque Control
Process PI Control (continued)
Torque Control Overview