MTS Series 793 - Manual (Page 228)

Description Item
Inner Loop Error—Inner Loop Command summed with the Conditioner
Out signal.
Spool Position—Conditioner Out signal summed with the Spool Zero
signal.
Conditioner Out—Conditioned feedback signal from the servovalve’s
inner loop displacement sensor.
Spool Zero—Amount of offset introduced by the Conditioner tab’s
Offset control.
Ground—Signal common.
Inner Loop Tab Settings for Three-Stage Valve Drivers
Use this tab to define the inner loop tuning values.
Access
Station Setup window > navigation pane > Channels > Control Channel n > > Inner Loop tab
Note:
To edit any item requires Tuning access level (or higher.)
Inner Loop Tab for Three-Stage Valve Drivers
Description Item
Sets the inner loop’s proportional gain, which affects the inner loop
response of the pilot valve. Inner Loop Gain
Sets the inner loop’s derivative gain, which affects the servovalve’s
stability at higher inner loop gain settings. Inner Loop Rate
Spool Position—Sets the feedback from the servovalve’s spool as
the rate input. Most systems use this setting. Rate Input Selection
Inner Loop Error—Sets the inner loop error as the rate input. This is
the difference between spool position feedback and spool position
command.
Conditioner Tab Settings for Three-Stage Valve Drivers
Use this tab to define the inner loop conditioner values.
Access
Station Setup window > navigation pane > Channels > Control Channel n > > Conditioner tab
228 MTS Series 793 Control Software
Station Setup