Cutoff - Sealing Function - EBRO ARMATUREN EP 501 C Operating Instructions Manual

Typ EP 501
Auxiliary functions
24.2.2. CUTOFF – Sealing function
This function causes the valve to be sealed outside the control area.
This is where you input the limits for the position set-point value (CMD) as a percentage, from which the actuator
is fully deaerated or aerated.
Controlled operation opens or resumes at a hysteresis of 1 %.
If the process valve is in the sealing area, the message „CUTOFF ACTIVE" is indicated on the display.
Only.for.type.EP.501.C: Here you can select the set-point value to which the sealing function is to apply:
Type PCO Process set-point value (SP)
Type XCO Position set-point value (CMD)
If Type PCO was selected, the limits for the process set-point value (SP) are input as a percentage with ref-
erence to the scaling range.
Factory setting: Min = 0 %;
CUTOFF
ENTER
EXIT
* If the submenu is left by pressing the
Figure 46: Operating structure CUTOFF
The changed data is saved in the memory (EEPROM) only when there is a switch to the process level,
by leaving the main menu (MAIN) using the left selection key
symbol is indicated
Max = 100 %;
Min 0 %
INPUT
Max 100 %
INPUT
Available.for.Type.EP.501.Conly
CUT type
INPUT
EXIT
ESC
key, the value remains unchanged.
on the display.
CUT type = Type PCO
Sealing threshold
Enter
Deaeration (0 = not active)
value
Adjustment range:
0 ... 25 %
Sealing threshold
Enter
Aeration (100 = not active)
value
Adjustment range:
75 ... 100 %
*
OK
Select process
Type PCO
SELEC
set-point value
Select position
Type XCO
SELEC
set-point value
EXIT . During the save process, the save
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