Rockwell Automation 21G PowerFlex 750-Series AC Drives Programming Manual User Manual
Page 460
460
Rockwell Automation Publication 750-PM001J-EN-P - October 2014
Appendix B
Application Notes
6.
Set speed reference.
Program preset speeds according to Speed Select inputs that are used.
7.
Run crane with crane control unit.
Verify speed references by checking P930 [Speed Ref Source].
8.
Set speed loop tuning.
P645 [Speed Reg Kp] = P636 [Speed Reg BW] x P76 [Total Inertia] = BW x J (Inertia)
Input Status (1 = Input Actuated)
Auto Reference
Source
DI Speed Sel 2
DI Speed Sel 1
DI Speed Sel 0
0
0
0
Reference A
0
0
1
Reference A
0
1
0
Reference B
0
1
1
Preset Speed 3
1
0
0
Preset Speed 4
1
0
1
Preset Speed 5
1
1
0
Preset Speed 6
1
1
1
Preset Speed 7
I/O Module Parameter (Port X)
Setting
P10 [RO0 Sel]
Port 0, P935 [Drive Status 1], Bit 16 “Running”
Drive Parameter
Setting
P636 [Speed Reg BW]
20 R/S
Defines the reactivity of the speed regulator. This parameter is
used to calculate Kp and Ki gains.
P76 [Total Inertia]
1.5 Secs
This value can be increased or decreased depending on Speed
regulator response.