Technical Specifications

ValVueFF Software Interface to FVP
70
GE Energy
Step 3: Tuning Wizard
The positioner automatically searches for the mechanical valve travel limits and tunes the
valve position PID control algorithm (Figure 66).
Figure 66 Tuning Wizard Dialog Box
1. Ensure the air supply to the valve must be on and set to the correct pressure.
2. Select Go. This takes several minutes to complete and strokes the valve. If this is not
a first time setup of the valve, skip this step by selecting the Skip button. The
following list details actuators that must be tuned manually. Look for a Manual Tune
Only notice in the TB block tag descriptor. Actuators that may require manual tuning:
❑ Actuators with internal leaks, such as pistons.
❑ Large actuators with high spring ranges.
Auto Tune is successful for most valves. However, very large actuators or high hysteresis
may require manual tuning. If Limit Searching and Auto Tune are performed successfully
the Tuning Result dialog box displays for your confirmation (Figure 67).