3
EX-Z/T 235
Operating instructions
Position switches
EN
3. Mounting
3.1 General mounting instructions
Fitting is only authorised in a de-energised condition
The enclosure can be fixed by means of 2 mounting holes. The moun-
ting dimensions are mentioned at the rear of the enclosure. The fixing
screws must be protected against unauthorised tampering. The use of
a protective ground wire is imperative. The enclosure must not be used
as an end stop. Any mounting position.
To ensure a proper functioning, the switch must be installed so that
the required switch travel is obtained. For safety functions, at least
the positive break travel indicated in the switch travel diagram (refer to
catalogue) must be obtained. All components have sufficient after-
travel to compensate for inaccuracies in the guidance of the actuating
system. The actuation of the switch beyond its end stop however must
be avoided.
Please observe the recommendations regarding maximum
impact energy, actuating speed and tightening torque in the
technical data.
Please observe the remarks of the standards EN ISO 12100,
EN 953 and EN ISO 14119.
3.2 Dimensions
All measurements in mm.
Position switches EX-Z/T 235
22
15
30
20
30
63,5
8,5
20
4,3
Mounting of the actuating heads
Repositioning the actuating heads (R, 1R, 4R, K, 3K, 4K, V.H)
The actuating head can be repositioned by 4 x 90°. Unscrew the four
screws of the actuating head (Philips tip profile PZ1), reposition the
actuating head in the desired position and retighten the four screws
(tightening torque 0.45 Nm).
Repositioning the roller lever (H.)
The (offset) roller arm may be reversed, so that the roller faces the
inside of the arm.
Positioning the lever (H.)
10° 10°
10°
10°
The roller lever can be repositioned over 360° on the toothed shaft in
10° steps. Unscrew the hexagonal screw approx. 4 mm, reposition the
lever in the desired position and retighten the screw.
Length-adjustable lever (7H, 10H)
To adjust the length of the lever, unscrew the fixing screw of the lever.
Firmly retighten the screw after the length adjustment.
Position switches with 7H, 10H actuator or spring rod lever
AF are without positive break and not suitable for safety
functions.
Ordering suffix for actuator 7H with positive break: -2138.
