Fitting The Positioner To A Continuous Valve With Rotary Drive - Burkert 1067 Manuel Utilisateur

3 INSTALLATION

3.1.4 Fitting the positioner to a continuous valve with rotary drive

Note: When the 1067 is mounted on a double-acting actuator for regulation purposes, select an
actuator size bigger than the one indicated in the couple dimensioning table.
Connect the pneumatic connection A1 to the actuator chamber which axis rotates clockwise when
air is supplied.
Arrangement
In the case of a continuous valve with rotary or part-turn valve actuating drive, variant 1 with an
internal feedback/positional transducer should be used. Its shaft is coupled to the valve rotary drive
(e.g. flap valve). The position of the rotary drive is thus transmitted directly to the shaft of the
feedback/positional transducer.
Fig. 18 Fitting to a continuous valve with
rotary drive
Assembly
A coupling (adapter)
with a rotary or part-turn valve actuating drive (e.g. 3210, Fig. 20). In addition, an assembly clip
(Fig. 21) is required and can be obtained from the manufacturer of the part-turn valve actuating drive.
(It is normally used for the assembly of a limit-switch box).
To assemble, the following steps should be carried out (Fig. 21):
Secure the assembly clip
Place the coupling on the shaft of the positioner's feedback/positional transducer. The setscrew
on the coupling should first have been slightly withdrawn.
Place the positioner on the assembly clip. Ensure that the flat piece of the coupling fits into the slot
in the end of the drive shaft.
Secure the positioner on the assembly clip with 4 x M6 screws.
Fix the coupling to the shaft of the feedback/positional transducer by screwing in the setscrew
If after the AUTOTUNE function is started the message TURN POT is displayed on the LCD, the
setscrew must be loosened and the shaft of the path-measuring system rotated 180° relative to the
drive. The setscrew should then be screwed tight and the AUTOTUNE function repeated.
is provided for assembling variant 1 of the positioner on to a continuous valve
to the valve drive.
POSITIONER 1067
Fig. 19 Reverse side of positioner (variant 1)
with securing holes
E-15-
.