MTS Series 793 - Manual (Page 97)

How to Perform Advanced Tuning Techniques
MTS Series 793 Tuning and Calibration Tuning Procedures 97
C. Return Conditioner > Polarity to its original setting.
Automated Controllers:
In the Drive panel, click the Valve tab.
In the Valve tab, produce a Spool Position output signal of +10 V DC with
the spool driven into the opposite end cap.
A. Reverse the Polarity setting to drive the inner loop spool into the other
end cap.
B. Check the meter. It should read +10 V DC (±0.5 V DC).
If the voltage is correct, proceed to the next step in this procedure.
If the voltage is off by more than 0.5 V, you may need to mechanically
center the pilot spool. Complete this procedure, then recheck spool
position voltages at each endcap before you resume inner loop tuning.
C. Return Polarity to its original setting.
9. Monitor the spool position signal with a scope.
Standalone FlexTest SE Controllers: Press Scope to monitor the spool
position signal.
Note If your FlexTest SE Controller is not equipped with the optional Scope,
use an external oscilloscope.
Automated Controllers:
A. In the Station Manager window’s toolbar, click once to display
a single Scope window.
B. In the Scope window’s toolbar, click to open the Setup for
Scope window.