© 2021 Baker Hughes Company. All rights reserved. Masoneilan SVi1000 Positioner Quick Start Guide | 41
Open Stops Adjustments
In some valves the stem travel exceeds the nominal valve travel. The SVi1000 allows you to
compensate for this so that the valve position reads 100% at the nominal travel. The acceptable
range is between 60%-100% of possible mechanical travel.
To perform open stops adjustments:
1.
Press the upper stop adjustment button for two to seven seconds, until green LED 2
illuminates, then release. Green LED 2 flashes.
2.
Move the valve to the desired location via the Open Stop Adjustment Screw (Figure 21).
Figure 21 - Open Stop Adjustment Screw
3. Press the upper stop adjustment button for more than two seconds.
The green light goes off, the new stop is saved in the device and the unit is put into Normal
mode.
Press
Cancel
to abort the process and the green LED 1 goes off, the device returns to
Normal mode and no changes occur.
Tuning
Methods for tuning the SVi1000:
o
Presets; The fastest and easiest commissioning is to use a preset tuning for the
actuator in use ( “Preset Tune”). Using presets saves time as you do not run Auto
Tune.
o
Auto Tune: If desired, run Auto Tune (
Auto Tune
on page 44).
o
PID Settings: The third method is to manually tune PID settings for fine tuning, if
desired. See the online help.
Upper Stop Button
and LED 2
Open Stop Adjustment
Screw
Cancel Button and
LED 4
