MTS Series 793 - Manual (Page 78)

MTS Series 793 Tuning and Calibration
How to Manually Tune the Control Loop
Tuning Procedures 78
Do not place any part of your body in the path of a moving actuator.
A crush zone exists between the actuator and any equipment in the path of
its movement. Immediate and unexpected actuator response is possible
when you apply hydraulic pressure to your system.
Stay clear of the actuators when applying hydraulic pressure.
3. Turn on hydraulic pressure (see page 54 ).
4. Ensure that the displacement control mode is selected.
Standalone FlexTest SE Controllers: Press the Back button (or select
Tuning > Manual > Control Mode).
Automated Controllers: On the Manual Command window, ensure that
displacement is selected for Control Mode.
5. Install a dummy specimen.
Standalone FlexTest SE Controllers:
A. Enable the Dial.
B. Adjust the Dial to position the actuator during specimen installation.
Automated Controllers:
A. On the Manual Command window. Click Enable Manual
Command.
B. Adjust the Manual Command window slider to position the actuator
during specimen installation.
6. Switch to the force control mode.
Note For Automated Controllers, ensure the Master Span control on the
Station Controls panel is set to100%.
WARNING