Adjusting The Limit Contact - Samson Series 3730 Mounting And Operating Instructions

9 Adjusting the limit contact

The positioner version with an inductive limit
contact has an adjustable tag (1) mounted
on the axis of rotation, which operates the
proximity switch (3).
For operation of the inductive limit contact,
the corresponding switching amplifier ac-
cording to EN 609475-6 (see section 5.2.1)
must be connected to the output circuit.
When the tag (1) is located in the inductive
field of the switch, the switch assumes a high
resistance. When it moves outside the field,
the switch assumes a low resistance.
Normally, the limit contact is adjusted such
that the fail-safe position of the valve is indi-
cated when the contact's switching state
changes.
Adjustment screw (2)
Fig. 26: Adjusting the limit contact
EB 8384-6 EN
Note:

The inductive limit contact replaces
the software limit contact A1 with ter-
minal assignment +41/–42. Each
switching position can optionally be
set to indicate when the tag has en-
tered the field, or when it has left the
field.
The second software limit contact re-
mains effective, the function of the
software limit contact A1 is disabled.
Software adaptation
Code 38 (inductive alarm is set to YES). The
inductive limit contact is connected to the ter-
minals +41/–42. The device is set up ac-
cordingly in the delivered state.
Metal tag (1)
Adjusting the limit contact
Proximity switch (3)
89