Baker Hughes Masoneilan SVI FF, Quick Start Manual

Page: 14 / 22

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5. Perform Autotune
1. Select the Autotune tab.
Figure 12 Autotune Tab
CAUTION
Procedures (e.g. Find Stops, Auto Tune, Step Test, Ramp Test,
Signature) should
NOT be invoked if the ValVue sequencer is
running.
Do not Auto Tune if manual tuning has been used. Auto Tune
creates new parameters that override the manual tuning
parameters.
Control Tuning must be Custom in Quick Start Configuration Tab
for Autotune to run (Figure 12 on page 14).
For a successful Auto Tune process, the supply pressure must be
at least 5 psi (34.5 kPa) above the spring range.
WARNING
This procedure moves the valve.
Before beginning the Auto or Manual range calibration, confirm
that the valve is isolated from the process. This procedure
exhausts and then fills the valve actuator to supply pressure and
therefore strokes the valve over its full range.
Supply pressure MUST NOT exceed the actuator pressure rating
marked on the actuator. Positioner supply pressure MUST BE at
least 5 psi higher than the upper spring range of the valve.