Flowserve 3400IQ Digital Positioner - Manual (Page 18)

Logix 3400IQ Digital Positioner FCD LGENIM3401-00 – 06/06
1
2. Using four 1/4-20 x 1/2" bolts and a 7 ⁄
16
" open-end wrench, fasten positioner to universal bracket,
using the four-hole pattern that locates the positioner the farthest from the valve. Rotate
positioner 90 degrees from normal so gauges are facing upward.
3. Attach follower arm to positioner feedback shaft, using the star washer and 10-32 nut.
4. Attach tripper and tripper clamp to valve shaft using two 1/4-20 bolts and two 1/4-20 locknuts.
Leave tripper loose on shaft until final adjustment.
5. Thread ball joint linkage end to tripper and tighten (thread locking compound such as Loctite
is recommended to prevent back threading). Adjust the length of tie rod so follower arm and
tripper rotate parallel to each other (the rod must be cut to the desired length). Connect the
other ball joint end to follower arm using a star washer and a 10-32 nut.
6. Tighten bracket and tripper bolting.
7. Check for proper operation, note direction of rotation.
c WARNING: If rotating in wrong direction, serious damage will occur to the positioner
and/or linkage. Check air action and stroke direction carefully before initiating
operation.
5.4 NAMUR Mounting Option
Logix 3200IQ is available with a NAMUR output shaft and mounts on an actuator using the ISO F05
holes. Proper alignment of the positioner shaft to the actuator shaft is very important since improper
alignment can cause excess wear and friction to the positioner.
5.5 Tubing Positioner to Actuator
The Logix 3400IQ digital positioner is insensitive to supply pressure changes and can handle supply
pressures from 30 to 150 psig. A supply regulator is recommended if the customer will be using
the diagnostic features of the Logix 3400IQ but is not required. In applications where the supply
pressure is higher than the maximum actuator pressure rating a supply regulator is required to lower
the pressure to the actuator’s maximum rating (not to be confused with operating range). An air filter
is highly recommended for all applications where dirty air is a possibility.
NOTE: The air supply must conform to ISA Standard ISA 7.0.01 (a dew point at least 18°F below
ambient temperature, particle size below five microns—one micron recommended—and oil content
not to exceed one part per million).
Air-to-open and air-to-close are determined by the actuator tubing, not the software. When air action
selection is made during configuration, that selection tells the control which way the actuator has
been tubed. The top output port is called Output 1. It should be tubed to the side of the actuator that
must receive air to begin the correct action on increasing signal. Verify that tubing is correct prior to
a stroke calibration. Proper tubing orientation is critical for the positioner to function correctly and
have the proper failure mode. Refer to Figure 1 and follow the instructions below: