Operating instructions

9 Adjusting the limit switch
The positioner version with inductive limit
switch has one adjustable tag (1) mounted
on the shaft which operates the proximity
switch (3).
For operation of the inductive limit switch,
the corresponding switching amplifier ac
-
cording to EN 60947-5-6 (see section
5.2.1) must be connected to the output.
If the tag (1) is inside the field of the switch,
the switch assumes a high resistance. If the
tag is outside of the field, the switch assumes
a low resistance.
Normally, the limit switch is adjusted such
that it will provide a signal in both end posi-
tions of the valve. The switch, however, can
also be adjusted to indicate intermediate
valve positions.
Note: The inductive limit switch replaces the
software limit switch A1 with terminal as
-
signment +41/–42.
Each switching position can optionally be set
to indicate when the tag has entered the
field, or when it has left the field.
The second software limit switch remains ef
-
fective, the function of the software limit
switch A1 is disabled.
Software adaptation
Code 38 (inductive alarm is set to
YES ).
The inductive limit switch is connected to the
terminals +41/–42.
The device is set up accordingly in the deliv-
ered state.
78 EB 8384-6 EN
Adjusting the limit switch
Fig. 23 · Adjustment of the limit switch
Adjustment screw (2) Tag (1) Proximity switch (3)