Flowserve 500+ Series Logix - Manual (Page 19)

User Instructions - Logix® 500+ Series Digital Positioners FCD LGENIM0105-10 11/13
flowserve.com 19
5.6 Mounting to a Linear NAMUR
Pneumatic Actuator
The mounting of a rod actuator kit and actuator (according to
IEC 534 part 6) is described in the following example.
1
Mount the follower arm by unscrewing the lock nut for
the follower arm attachment. Place the follower arm on
the shaft at the back of the positioner and fasten it with
the lock nut. The follower pin should point away from
the positioner.
2
Attach the stem clamp bracket to the stem clamp and
fasten it with two hexagon socket screws and lock
washers.
3 Attach the take-off arm to the stem clamp bracket and
fasten it with a hexagon socket caps crew and a
washer.
CAUTION: Maximum torque 0,25 Nm (0,18 ft-lbs).
4 To mount the positioner, adjust the actuator to mid-
stroke.
5
Pre-assemble the mounting bracket on the left actuator
leg and hand-tighten the two U-bolts, nuts and lock-
washers.
6 Attach the positioner to the pre-assembled mounting
bracket and fasten it with two hexagon screws and two
lock washers. Check that the follower pin is inserted in
the slot of the take-off arm and the follower arm is
positioned parallel to the take-off arm.
7 Tighten all screws and nuts.

NOTE: The feedback shaft has a clutch mechanism that
allows for over-rotation of the shaft for easy adjustments.

NOTE: A slight unsymmetrical mounting increases
the linearity deviation but does not affect the performance of
the device.

NOTE: Depending on the actuator size and stroke it may
be necessary to flip the take-off arm (Figure 3) by 180° and
attach it to the opposite side of the stem clamp bracket.
8
Connect regulated air supply to appropriate port in
manifold. See section 6 TUBING.
9
Connect the power to the 4-20 mA terminals. See
section 7 ELECTRICAL CONNECTIONS.
10
Remove main cover and locate DIP switches and
QUICK-CAL/ACCEPT button.
11
Refer to sticker on main board cover and set DIP
switches accordingly. See section 8 STARTUP.
12 Press the QUICK-CAL/ACCEPT button for three to four
seconds or until the positioner begins to move. The
positioner will now perform a stroke calibration.
13
If the calibration was successful the green LED will blink
GGGG or GGGY and the valve will be in control mode.
14 If calibration fails, as indicated by a RGGY blink code,
retry the calibration. If it still fails, remove power from
the positioner, disconnect the air, and remove the
positioner from the actuator. Rotate the feedback shaft
so that the full free travel of the feedback shaft is in the
range of the actuator movement. Optionally, continue
to attempt the calibration. Each calibration attempt
adjusts the acceptable limits and it should pass
eventually.
CAUTION: Remember to remove the air supply before
re-adjusting take-off arm.
Figure 17: Mounting to a Linear Actuator
Follower Arm
Take Off Arm
Follower Pin
Stem Clamp