Burkert Positioner TopControl Basic 8694, Quick Start Manual, Page: 22 / 84

22
Start-up
NOTE!
Avoid maladjustment of the controller due to an incorrect
pilot pressure or applied operating medium pressure.
▶
Run X.TUNE whenever the pilot pressure (= pneumatic auxil-
iary energy) is available during subsequent operation.
• Run the X.TUNE function preferably without operating medium
pressure to exclude interference caused by flow forces.
To run X.TUNE , the positioner must be in the AUTOMATIC
operating status (DIP switch 4 = OFF).
NOTE!
Breakage of the pneumatic connection pieces due to rota-
tional impact.
▶
When unscrewing and screwing in the transparent cap, do not
hold the actuator of the process valve but the connection housing.
Body casing
Transparent cap
Connection housing
Actuator
Fig. 18: Open positioner
→
Screw off the transparent cap of the positioner to operate the
keys and DIP switches.
1 2 3 4
ON DIP
Communications
interface
LED 1
LED 2
DIP Switches
Key 1
Key 2
Fig. 19: Automatic adjustment X.TUNE
→
Start the X.TUNE by pressing key 1
4)
for 5 s.
While the X.TUNE is running, LED 1 flashes quickly (green).
When the automatic adjustment is complete, LED 1 flashes slowly
(green)
5)
.
The changes are automatically transferred to the memory (EEPROM)
provided the
X.TUNE function is successful.
4)
The X.TUNE can also be started via communications software.
5)
If a fault occurs, LED 1 is lit red.
english
Type 8694