EBRO ARMATUREN EP 501 B, Quick Start Manual

Page: 26 / 78

26
Startingup
11.2 Specifying the basic settings
The basic settings of the positioner are implemented at the factory.
To adjust the positioner to local conditions, the X.TUNE
function must be run following installation.
11.2.1 Running the automatic adjustment for
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 unintentionally activated!
NOTE!
Avoid maladjustment of the controller due to an incorrect
supply pressure or applied operating medium pressure!
▶
Run
X.TUNE
whenever the supply pressure (= pneumatic
auxiliary energy) is available during subsequent operation.
▶
Run the X.TUNE function preferably without operating medium
pressure to exclude interferences caused by flow forces.
To run X.TUNE , the positioner must be in the AUTOMATIC
operating state (DIP switch 4 = OFF).
→
Start the X.TUNE by pressing button 1
9)
for 5 s.
While X.TUNE is running, LED 1 flashes very quickly (green).
When the automatic adjustment is complete, LED 1 flashes slowly
(green)
10)
.
The changes are automatically transferred to the memory (EEPROM)
provided the
X.TUNE function is successful.
If LED 3 (red) is lit after the X.TUNE function started, the
X.TUNE function was ended due to a fault.
▶
Check possible faults
(see “Tab. 10: Error messages while the X.TUNE function
is running”).
▶
Then repeat the X.TUNE function.
7)
The X.TUNE can also be started via communications software.
8)
If a fault occurs, LED 3 is lit red.
english
Type EP 501 B