beautypg.com

Burkert Type 8686 User Manual

Page 23

background image

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

This manual is related to the following products: