GE FVP110, Maintenance Manual

Page: 56 / 292

FVP 110 Fieldbus Valve Positioner Manual
40
GE Energy
When using the Single Acting Type, you can adjust the position of the feedback lever
while air is being supplied to the actuator. See “Position Adjustment of Feedback Lever”
on page 251.
Installing FVP110 on Rotary-motion Control Valve
This section gives the general installation procedure when assembling a FVP110 with a
rotary-motion control valve (Figure 22) combined with a diaphragm actuator or cylinder
actuator. The most suitable procedure may differ depending on the bracket shapes and
valve actuator, and the structure of the actuator.
Figure 22 FVP Installed on Rotary-motion Valve/Actuator
CAUTION
When combining an FVP110 with a rotary-motion actuator,
ensure that the rotation of the feedback shaft by the position
feedback meets the following specifications (Figure 23):
❑ Range of rotation angle of shaft: Within ±45° from
horizontal level
❑ Minimum span: 20°
❑ Maximum span: 90°
❑ Mechanically allowable rotation angle: ±55°
If any one or more of the specifications above are not met, the
specified accuracy is not guaranteed, resulting in the FVP110
positioner being damaged. An advance check is essential.