EBRO ARMATUREN EP 501 Démarrage Rapide page 29

Type EP 501
Input the input signal (INPUT)
→
In the INPUT menu option select the input signal for the set-
point value.
(4 ... 20 mA, 0 ... 20 mA, 0 ... 10 V or 0 ... 5 V).
Process level (values are displayed)
press for approx. 3 s
MENU
Einstellebene
EXIT
Fig. 15: Operating structure INPUT; Input the signal
Start-Up
INPUT
ENTER
X.TUNE
ADD.FUNCTION
Selection of the
input signal
SELEC
4-20 mA
0-20 mA
0-10 V
0-5 V
EXIT
Automatic adjustment of the positioner to the operating
conditions (X.TUNE)
WARNING!
Danger due to the valve position changing when the X:TUNE
function is run!
When the X.TUNE function is run under operating pressure, there
is an acute risk of injury.
▶ Never run X.TUNE while the process is running!
▶ Secure system from unintentional activation!
NOTE!
An incorrect supply pressure or incorrectly connected
operating medium pressure may cause the controller to be
wrongly adjusted!
▶ Run X.TUNE in each case at the supply pressure available in
subsequent operation (= pneumatic auxiliary power).
• Run the X.TUNE function preferably without operating medium
pressure to exclude interference due to flow forces.
The following functions are actuated automatically:
• Adjustment of the sensor signal to the (physical) stroke of the
actuator used.
• Determination of parameters of the PWM signals to control the
solenoid valves integrated in the device.
• Setting of the controller parameters of the positioner. Optimization
occurs according to the criteria of the shortest possible transient
time with simultaneous freedom from overshoot.
english
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