MTS Series 793 - Manual (Page 107)

How to Perform Advanced Tuning Techniques
MTS Series 793 Tuning and Calibration Tuning Procedures 107
How to Tune a CLC Control Mode
Tune the control modes that will supply the active and limiting feedback signals
.
1. Select an access level of Tuning:
Standalone FlexTest SE Controllers: Select Tuning > P Gain.
Automated Controllers: In the Station Manager window’s toolbar, select
an access level of Tuning.
10.0
Upper
Limit
Lower
Limit
Force
Feedback
Proportional Gain
10.0
Manual
Command
Displacement
Feedback
Servovalve
Command
Upper Limit
Error
Lower Limit
Error
−
+
−
+
−
+
Displacement
Error
Active P Gain
Limiting P Gain
Bandwidth
2.5 Bandwidth
The CLC control mode uses one of three error signals. The Limiting P Gain adjustment
acts as a conversion factor to scale the limit feedback to similar units as the active P
feedback. The Limiting P Gain is turned on within the upper and lower limit bands
defined by the Bandwidth control.
Otherwise use displacement error
If force feedback is moving toward
the lower limit And displacement
error is negative Then use lower
limit error.
Defines bands at the upper and
lower limits within which Limit P
Gain is applied.
If force feedback is moving toward
the upper limit And displacement
error is positive Then use upper
limit error.
Channel Limited Channel Diagram