Rockwell Automation 20B PowerFlex 700 AC Drives Vector Control (v4.001 and up) - Manual (Page 135)

Rockwell Automation Publication 20B-UM002G-EN-P - July 2014 135
Application Notes Appendix C
If no digital input is configured to “PI Enable,” then only the Bit 0 = 1 condition
must be met. If the bit is permanently set to a “1”, then the loop will become
enabled as soon as the drive goes into “run.”
Figure 18 - Process Trim
PI Enabled
Spd Cmd
PI Output
PI Pre-load Value
PI Pre-load Value = 0 PI Pre-load Value > 0
Pre-load to Command Speed
PI Enabled
Spd Cmd
PI Output
Start at Spd Cmd
-100.0 -75.0 -50.0 -25.0 0.0 25.0 50.0 75.0 100.0
Normalized Feedback
Nor
maliz
ed SQR
T(F
eedbac
k)
-100.0
-75.0
-50.0
-25.0
0.0
25.0
50.0
75.0
100.0
Torque Reference
(To Spd/Trq Mode Sel)
Selector
PI Feedback Sel
PI Reference Sel
Hi / Lo
Scale
Hi / Lo
Scale
√
126
128
PI Ref Meter
Linear
Cmd
Ramp
460
461
462
463
0
PI Fdbk Meter
124 3
124 5
PI Configuration
124 1
-1
139
Filter
BW
PI Error Meter
130
129
464
1
Limit
ki
S
I Gain
kp
P Gain
PI
Output
Gain
459
kds
D Gain
124 7
0
133
124
124 2
0 10
Controlled
Output
Σ
132
131
132
131
4
134 4
Limit
8
÷
X
Scale
432
427 Torque Ref A Sel
Selector
431 Torque Ref B Sel
Selector
>/=0
124 4
>/=0
124 4
Zero
Clamp
0
1
Preload
0
1
Fdbk
Sqrt
0
1
1
0
Enable
0
+
-
+
+
+
+
+
Commanded Speed
0
1
Enable
0
1
0
124 0
23
Zero
Clamp
0
1
Selector
Z -1
PI Output Meter 135
134
134
134
137
2
134
134
136
138
Enable
0
Read Only Parameter
Read / Write Parameter
Read Only Parameter w/Bit Enum
Read / Write Parameter w/Bit Enum
434
433
+
+
+
+
+
124 0
Exclusive
1
Exclusive
0
1
0
Invert
0
1
Hold
1
Limit
PI Preload
Output
Frequency
Voltage or
Current
Speed
Reference
Scale
428
430
429
124
Torque
Trim
Linear
S-curve
Ramp
Ramp
Ref
Selectable
Source(s)
Selectable
Source(s)