MTS Systems FlexTest SE Service Information

Tuning Displacement
Model 493.02 Controller Service
Tuning
215
Tuning Displacement
A displacement control mode uses the feedback signal from an LVDT
(linear variable differential transformer). You do not need a specimen
to tune a displacement control mode.
When to tune A displacement control mode usually only needs to be tuned once.
However, you may want to retune a displacement control mode if:
• The fixtures attached to the actuator have changed (such as grips).
The main tuning factor is a change in the mass attached to the
actuator.
• Any time hydraulic system potential has changed, such as after
servovalve, hose, or pump replacement.
• You want to fine tune the control mode.
• The LVDT ranges are changed.
• You deem it necessary as a result of scheduled system calibration
or you feel system response should be improved or reduced.
Prerequisites Be sure the following items are completed before you begin tuning the
displacement control mode:
• Hydraulic pressure is off.
• The specimen is not installed.
• You have created a station configuration file.
• You have created a station parameter set.
Tuning procedure Refer to “How to manually tune the displacement control mode” in
Chapter 2, Common Tasks of the FlexTest SE Users manual for a
detailed tuning procedure.

MTS Systems FlexTest SE Specifications

General

Brand	MTS Systems
Model	FlexTest SE
Category	Controller
Language	English