MTS Series 793 - Manual (Page 61)

How to Balance the Servovalve
MTS Series 793 Tuning and Calibration Tuning Procedures 61
1. Get things ready.
A. Select the Calibration access level.
B. Remove any specimen.
C. Apply hydraulic pressure.
Enabling the front panel Dial (Standalone FlexTest SE Controllers) or Enable
Manual Command (automated controllers) allows you to manually position
actuators.
A moving actuator can injure anyone in its path.
Always clear the actuator area before manually adjusting actuator position.
2. Position the actuator at or near its midstroke position.
Standalone FlexTest SE Controllers:
A. Select Status > Control Mode > displacement
B. Select Status > Setpoint
C. Enable the Dial.
D. Use the Dial to adjust the Setpoint to position the actuator.
Automated Controllers:
A. In the Station Controls panel’s toolbar, click . In the Manual
Command window:
B. Select the Channel whose valve balance needs checking.
C. For the Control Mode, select a displacement control mode.
D. Select Enable Manual Command.
E. Use the Manual Cmd to position the actuator at or near its midstroke
position.
3. Record and zero displacement I Gain.
Standalone FlexTest SE Controllers:
WARNING