MTS Series 793 - Manual (Page 63)

How to Balance the Servovalve
MTS Series 793 Tuning and Calibration Tuning Procedures 63
A. In the Station Setup window, click .
Three-stage valves: In the Drive panel, click the Valve tab.
B. While observing Displacement Abs. Error on the Meters panel, adjust
the Valve Balance control until Displacement Abs. Error is zero.
6. Return displacement I Gain to its original setting.
Standalone FlexTest SE Controllers: Select Tuning > Manual > I Gain
Automated Controllers: I
A. In the Station Setup window, click .
B. In the Tuning panel, click the Adjustments tab.
How to Balance Dual Valves
Use the following procedure if you need to balance dual servovalves.
1. Get things ready.
A. If necessary, select the tuning access level.
B. Remove any specimen.
C. Determine which servovalve of the dual valve pair you want to balance
first, then mount a blocking plate on the port of the other servovalve.
Note When installing the blocking plate ensure that its holes are aligned with
the servovalve port holes and a gasket is used.
D. Apply hydraulic pressure.
Selecting the Enable Manual Command allows you to manually position
actuators.
A moving actuator can injure anyone in its path.
Always clear the actuator area before selecting Enable Manual Command.
WARNING