Burkert Type 8696 - Manual (Page 42)

42
Start-up
11.2.1. Running the automatic adjustment X.TUNE:
WARNING!
While the X.TUNE function is running, the valve automatically moves from its current position!
• Never run
X.TUNE while a process is running!
• Take appropriate measures to prevent the equipment from being accidentally actuated!
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 auxiliary 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).
→
Screw off the transparent cap of the positioner to operate the keys and DIP switches.
→
Start the X.TUNE by pressing key 1 15) 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) 16) .
The changes are automatically transferred to the memory (EEPROM) provided the X.TUNE function is successful.
NOTE!
Damage or malfunction due to penetration of dirt and humidity!
• To observe protection class IP65 / IP67, screw the transparent cap in all the way.
→
Close the device (assembly tool: 674078 17) ).
Key 1
DIP switches
Key 2
LED 2
LED 1
Figure 21: Starting X.TUNE
15)
The X.TUNE can also be started via communications software.
16)
if a fault occurs, LED 1 is lit red.
17)
The assembly tool (674078) is available from your Bürkert sales office
english
Type 8696