Rockwell Automation Publication 2094-UM001J-EN-P - March 2017 239
Configure the Load Observer Feature Appendix D
The following figures illustrate the high-level operation of each observer mode.
Figure 115 - Load Observer Disabled Configuration (Value 0)
Figure 116 - Load Observer Only Configuration (Value 1)
Figure 117 - Load Observer with Velocity Estimate Configuration (Value 2)
Figure 118 - Velocity Estimate Only Configuration (Value 3)
Velocity Estimate
Torque Estimate
Position Feedback
Servo Drive
Mechanics
Unloaded Motor
Position
Command
Control Loops
Power Conversion
Acceleration Reference
Torque Load
Fs
Load Observer
+
+
–
–
+
Velocity Estimate
Torque Estimate
Position Feedback
Servo Drive
Mechanics
Unloaded Motor
Position
Command
Control Loops
Power Conversion
Acceleration Reference
Torque Load
Fs
Load Observer
Velocity Estimate
Torque Estimate
Servo Drive
Mechanics
Unloaded Motor
Position
Command
Control Loops
Power Conversion
Acceleration Reference
Torque Load
Fs
Load Observer
Position Feedback
Velocity Estimate
Torque Estimate
Servo Drive
Mechanics
Unloaded Motor
Position
Command
Control Loops
Power Conversion
Acceleration Reference
Torque Load
Fs
Load Observer
Position Feedback