Warren Controls AmurAct Linkage LS Series, Инструкции по установке, эксплуатации и обслуживанию

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2600 Emrick Blvd • Bethlehem, PA 18020 • USA • 800-922-0085 • www.warrencontrols.com AMURACT_IOM_RevK_0415
Version A:
two-way AmurAct control valves having ¾” stem travel
(all two-way valves except the 4” Type 20 and 23).
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1.
Beginning with a linkage properly oriented, securely fastened to
the valve bonnet and loosely assembled to the valve stem, manually
operate the linkage to raise the valve stem. Observe the benchmark
scribed into the front face of the crank support column.
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2.
Gently lower the valve stem and note the position of the crank
relative to the benchmark when the plug makes contact with the
valve seat. Exert just enough force on the crank to take up any
looseness in the linkage pivots.
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3
.
Lower and tighten the two stem nuts together. This provides
a means to grip and rotate the valve stem after lifting the plug
from its seat, to thread the stem into or out of the stem connector.
Threading the stem into the connector shortens the assembly and
allows the crank to move further counterclockwise. Threading the
stem out of the connector lengthens the assembly, allowing less
counterclockwise rotation. Perform this sensitive into or out of
adjustment until the crank stops 2 to 3 degrees PAST the benchmark.
REPEAT THE POSITION CHECK IN STEP 2 AFTER EACH ADJUSTMENT.
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5.
Repeat step 2. If the crank stops PRECISELY at the benchmark
(denoting proper calibration), tighten the second stem nut against
the first, THEN REPEAT STEP 2 ONCE MORE.
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6.
If the crank does not stop PRECISELY at the benchmark after
completing step 5, repeat this procedure from step 3, appropriately
lengthening or shortening the stem assembly in SMALL INCREMENTS.
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7.
After precise calibration is complete, push the crank firmly
against its support column to fully extend the linkage input shaft.
Install a small c-clamp onto the crank and link and draw the two
together into alignment with each other. This is the end-of-travel
position of the calibrated linkage and full seating force is now
present on the valve plug. LEAVE THE CLAMP IN PLACE UNTIL
MOTOR INSTALLATION IS COMPLETE.
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8.
Calibrate and install the motor as instructed on page 10 of
this manual. The proper motor calibration point for this version is
90 degrees as indicated on the motor shaft clamp position scale.
Remember to press the motor RESET pushbutton after installation
and calibration are complete and the motor is energized, but before
the system is placed into service.
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CALIBRATING THE AMURACT LINKAGE
NOTE that the valve stem and plug have been raised prior
to turning the stem.
into
out of
OVERVIEW: Calibration of the AmurAct linkage is accomplished by adjusting
effective stem length so the linkage crank is precisely aligned with a benchmark
when the valve plug contacts the valve seat. Precision is necessary, because the
remaining crank travel determines how much force will be applied to the valve
plug to achieve tight shutoff. Minor maladjustment can result in major loss of
shutoff capability or overstressing of linkage and valve components. AmurAct
performance is directly related to the accuracy of its calibration. Calibration
of each version is different from the others, read and understand the entire
procedure before adjusting anything. Call our factory with any questions.
4
.
Carefully loosen the stem nuts from each
other and move the upper nut upward into
contact with the stem connector block. Us-
ing a second wrench to keep the block from
rotating, tighten the nut securely against the
block. This tightening will lengthen the stem
connection assembly and allow less crank ro-
tation to the plug/seat contact point.
Do not press the RESET pushbutton within 10 seconds
of applying power to the actuator (See page 8, INITIAL
STARTUP AND OPERATION). Pressing the RESET
pushbutton within 10 seconds of applying power to the
actuator may result in the actuator programming being
changed. If the actuator programming is changed, the
actuator may not respond correctly to the control signal.
BENCHMARKS CALIBRATED END-OF-TRAVEL
!
WARNING
The valve stem must be raised when making stem connector
adjustments. Do not turn or rotate the valve stem while the valve
plug is in contact with the valve seat. “Grinding” contact will
damage the mating surfaces, adversely affect shut-off capability.