Installation
1.5
The positioner can have pressure gages (see the ordering code table) attached to the supply air
input and in each output. The indications on gages are references only and does not have the same
overall positioner accuracy.
The pneumatic connections are marked with IN for the air supply and OUT1 and OUT2 for Output1
and Output2, respectively. Use 1/4 NPT connections with sealing material for the NPT screw
threads. Connect the air supply on t he connection marked IN. Be sure the air supply does not
exceed the maximum allowed pressure of the positioner or the actuator.
IMPORTANT
When using tape sealant type on the thread connections, be sure not spread small residues inside, since they
may clog the air flow inside the positioner and even impair the equipment efficiency.
The
FY301
has five protected exhaust orifices with filters. Do not block any of these exhaust, as the
air must circulate freely through them. If painting the positioner block, remove the filters before, to
prevent them from being obstructed by paint. The orifices must be inspected on a r egular basis to
ensure they not blocked, granting the air to flow smoothly.
Double Action – Air to open (Close on failure)
Connect the positioner OUT1 output on the actuator connection marked with “OPEN” and connect
the positioner OUT2 output on the actuator connection marked with “CLOSE”.
Double Action – Air to close (Open on failure)
Connect the positioner OUT2 output on the actuator connection marked with “OPEN” and connect
the positioner OUT1 output on the actuator connection marked with “CLOSE”.
Single Action
Connect the positioner OUT1 output on the actuator input. Use a plug to block OUT2. Pay attention
to the safe logic on the actuator for the specific process. If necessary, invert the connections. Take
into consideration that in case of power failure the output marked OUT1 goes to zero pressure and
the output marked OUT2 goes to the air supply pressure value.
Summary of Contents for FY301
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