MTS Systems FlexTest SE Service Information

Calibrating an LVDT
Model 493.02 Controller Service
Calibration
103
Actuator fully retracted
or extended
A. If the actuator is fully retracted and applying a positive
Setpoint or Manual Cmd does not extend it, zero the
command, remove hydraulic pressure, and change the
servovalve polarity. Then retry this test. If it still does not
move, return to Step 7 and increase the gain setting.
• If the actuator is fully extended and applying a negative
Setpoint or Manual Cmd does not retract it, zero the
command, remove hydraulic pressure, and change the
servovalve polarity. Then retry this test. If it still does not
move, return to Step 7 and increase the gain setting.
Actuator not fully
retracted or extended
• If the actuator does not move at all, return to Step 7 and
increase the gain setting.
• If the actuator retracts, the servovalve polarity is correct.
• If the actuator extends, the servovalve polarity must be
reversed. Check the Polarity setting and change it (from
Normal to Inverted or vice versa).
B. Check the movement of the actuator. Use the Dial to adjust
Setpoint or the slider to adjust Manual Cmd to extend and
retract the actuator.
13. Display the Function Generator application
Stand-Alone — Click FG on the front panel menu to display the
Function Generator menu.
Automated — In the Station Manager navigation pane, click the
Function Generator icon to display the Function Generator
panel.
14. Set up the Function Generator with the following settings:
C
ONTROL SETTING
Control Mode
Displacement
Compensator
None
Target Setpoint
0
Amplitude
5% of full scale
Frequency
1 Hz
Wave Shape
square

MTS Systems FlexTest SE Specifications

General

Brand	MTS Systems
Model	FlexTest SE
Category	Controller
Language	English