Instruction Manual

Installation
September 2013
2-7
CAP SCREW, FLANGED
MACHINE SCREW,
FLAT HEAD
SHIELD
ADJUSTMENT ARM
CONNECTOR ARM
PLAIN WASHER
MACHINE SCREW
MACHINE SCREW,
LOCK WASHER,
HEX NUT
LOCK WASHER
LOCK WASHER
HEX NUT
SPACER
HEX NUT, FLANGED
FEEDBACK ARM
EXTENSION,
BIAS SPRING
Figure 2-2. FIELDVUE DVC6010 SIS Digital Valve Controller Mounted on Sliding-Stem Actuators with 2 to 4 Inches Travel
4. If valve travel exceeds 2 inches, a feedback arm
extension is attached to the existing 2-inch feedback
arm. Remove the existing bias spring (key 78) from
the 2-inch feedback arm (key 79). Attach the feedback
arm extension to the feedback arm (key 79) as shown
in figure 2-2.
5. Mount the digital valve controller on the actuator as
described in the mounting kit instructions.
6. Set the position of the feedback arm (key 79) on
the digital valve controller to the no air position by
inserting the alignment pin (key 46) through the hole
on the feedback arm as follows:
For air-to-open actuators (i.e., the actuator
stem retracts into the actuator casing or cylinder as air
pressure to the casing or lower cylinder increases),
insert the alignment pin into the hole marked ‘‘A’’. For
this style actuator, the feedback arm rotates
counterclockwise, from A to B, as air pressure to the
casing or lower cylinder increases.
For air-to-close actuators (i.e., the actuator
stem extends from the actuator casing or cylinder as
air pressure to the casing or upper cylinder increases),
insert the alignment pin into the hole marked ‘‘B’’. For
this style actuator, the feedback arm rotates
clockwise, from B to A, as air pressure to the casing or
upper cylinder increases.
Note
When performing the following steps,
ensure there is enough clearance
between the adjustment arm and the
feedback arm to prevent interference
with the bias spring.
7. Apply anti-seize (key 64) to the pin of the
adjustment arm. As shown in figure 2-3, place the pin
into the slot of the feedback arm or feedback arm
extension so that the bias spring loads the pin against
the side of the arm with the valve travel markings.
8. Install the external lock washer on the adjustment
arm. Position the adjustment arm in the slot of the
connector arm and loosely install the flanged hex nut.
9. Slide the adjustment arm pin in the slot of the
connector arm until the pin is in line with the desired
valve travel marking. Tighten the flanged hex nut.
10. Remove the alignment pin (key 46) and store it in
the module base next to the I/P assembly.
11. After calibrating the instrument, attach the shield
with two machine screws.
2