Burkert Type 8686 - Manual (Page 23)

23
Electricalinstallation
note!
faulty detection of end positions.
▶ For actuators with control function B (CFB, NO), the lower end
position must be approached before the feedback head is placed
on the adaptation body. To do this, pressurize the appropriate pilot
air port of the actuator (“Fig. 9”).
▶ Make certain the feedback head is correctly positioned relative
to the actuator: The dummy plug or pressure-relief valve must be
located on the side of the pneumatic connections of the actuator
(see “Fig. 9”).
→
Place the feedback head on the actuator. As you do, note:
- The dummy plug or pressure-relief valve must be located on the
side of the pneumatic connections of the actuator.
- The switch spindles must lodge inside the recesses on the
bottom of the feedback head. Do not move the caps onto the
switch spindles.
→
Push the feedback head onto the adaptation body until no gap is
visible on the form seal. Now align the mounting hole of the feedback
head on each side with the square nut of the adaptation body.
note!
if the torque is too high when screwing in the fastening screw
or if the O-ring is missing, degree of protection ip65 / ip67 is
not ensured.
▶ The fastening screw may only be tightened to a maximum torque
of 0.5 Nm ± 0.1 Nm.
▶ Check the position of the O-ring.
→
Use the two fastening screws M4 and matching O-rings to
fasten the feedback head onto the adaptation body (torque: 0.5
Nm ± 0.1 Nm).
When the supply voltage is applied, the feedback head is operating.
→
Before the device can be used, the basic settings (see section
“10.3.1 Basic settings”) must still be made on the feedback
head.
English
Type 8685 / 8686