MTS Series 793 - Manual (Page 87)

About Dual Compensation Control Mode
Note:
Dual compensation is also known as “mixed-mode” compensation.
The dual compensation control mode is typically used to provide programming and control on a channel
whose sensor feedback is unsuitable for maintaining closed-loop control.
This control mode requires two feedback signals:
• Control feedback (typically displacement), which is a relatively stable signal that is used by the PIDF
controller to maintain closed-loop control. Control feedback is provided when you select a Base Control
Mode.
Control feedback may be unsuitable if it is too noisy (for example, force feedback), or if it possesses only
dynamic characteristics (for example, accelerometer feedback).
• Compensator feedback (typically acceleration), which is used for command compensation, is the dimension
you actually program in. Compensator feedback is provided when you select a resource for the dual
compensation control mode (Active fdbk).
Dual Compensation Control Mode
Description Callout
Function Generator 1
Dual Mode Compensator 2
PID Controller 3
Actuator 4
Accel 5
LVDT 6
Control Feedback 7
MTS Series 793 Control Software 87
Station Builder