Piping
Do not touch near the actuator axis when supplying air after piping.
1. Perform sufficient pipe flushing and remove cutting chips, oil and dust from the piping to
prevent foreign matter from entering the positioner.
2. When connecting an SMC fitting to an air connection port (SUP, OUT1, OUT2), apply a
tightening torque of 12 to 14Nm. The tightening torque must be suitable for the tube fitting
in use.
■Double Acting Actuator
Perform piping on the positioner and actuator in the following manner. Also, when piping in cases
where the actuator rotates clockwise with the appropriate parameter setting (dir)
(direct operation)
＊
1
. For the piping layout, refer to “Double acting” in Table 6.
(1) Connect the pressure supply piping to the positioner SUP port.
(2) Connect the OUT1 port of the positioner to the air port of the double acting actuator (which
rotates clockwise as pressure increases) and the OUT2 port of the positioner to the air port of
the double acting actuator (which rotates counterclockwise as pressure increases).
■Single Acting Actuator
Perform piping of the positioner and actuator in the following manner. Also, when piping in cases
where the actuator axis is located at the end of counterclockwise rotation with a spring force and the
actuator rotates clockwise with appropriate parameter setting (dir) (direct operation)
＊
1
. For the
piping layout, refer to “Single acting” in Table 6.
(1) Connect the pressure supply piping to the positioner SUP port.
(2) Connect the positioner OUT1 port to single acting actuator air port.
(3) Plug the OUT2 port.
1: The positioner operating direction can be changed by the parameter settings (parameter code: 200). For
parameter details, refer to “■Parameter Code Details”. At such times, changing the piping is unnecessary.
The settings described in this section decide the operating direction via the appropriate parameter
settings (dir).
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