Burkert Type 8693 User Manual
Page 101
101
Start-up and operation of the
position controller Type 8692
22.3.3. CUTOFF
sealing function for the position controller Type 8692
The sealing function for the process controller Type 8693 can be found in the chapter entitled "27. Aux-
iliary functions for the process controller".
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.
Control mode 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.
Factory setting:
Min= 0 %;
Max = 100 %
CUTOFF
Min 0 %
Max 100 %
EXIT
ENTER
INPUT
+
-
Min 0 %
OK
INPUT
+
-
Max 100 %
OK
24)
24)
Sealing threshold
Deaeration
Adjustment range:
0 ... 25 %
(0 = not active)
Sealing threshold
Aeration
Adjustment range:
75 ... 100 %
(100 = not active)
Figure 50:
Operating structure CUTOFF
Changed values are not transferred into the memory (EEPROM) until the main menu (MAIN) is left.
Valve stroke [%]
(POS)
Adjustable from 75 – 100 %
Set-point value [%]
(CMD)
Adjustable from 0 – 25 %
Figure 51:
Graph - CUTOFF
24)
If the sub-menu is left by pressing the selection key on the left (ESC), the value remains unchanged.
english
Type 8692, 8693