13
Operating
MANUAL operating state (DIP switch 4 set to ON):
Button
Function
1
Aerate (manually open / close the actuator)
4)
2
Deaerate (manually open / close the actuator)
4)
1 and 2
simulta-
neously
Longer than 10 s (< 30 s, LED 2 flashes at 5 Hz):
Device restart
Longer than 30 s (LED 2 flashes at 10 Hz):
Reset device to factory setting
Tab. 1:
Configuration of the buttons for MANUAL operating state
AUTOMATIC operating state (DIP switch 4 set to OFF):
Button
Function
1
Press for 5 s to start the
X.TUNE
function
2
-
1 and 2
simulta-
neously
Longer than 10 s (< 30 s, LED 2 flashes at 5 Hz):
Device restart
Longer than 30 s (LED 2 flashes at 10 Hz):
Reset device to factory setting
Tab. 2:
Configuration of the buttons for AUTOMATIC operating state
4) Depending on the operating principle of the actuator.
7.2.2
Function of the DIP switches
DIP
switches
Function
ON
DIP
1 2 3 4
1
ON
Reversal of the effective direction of the set-point
value (20 – 4 mA corresponds to 0 – 100 %),
descending (
DIR.CMD
)
OFF
Normal effective direction of the set-point value
(4 – 20 mA corresponds to 0 – 100 %), ascending
2
ON
Sealing function active. The valve completely
closes below 2 %
5)
and opens above 98 % of the
set-point value (
CUTOFF
)
OFF
No sealing function
3
ON
Correction characteristic for adjustment of the
operating characteristic (
CHARACT
)
5)
OFF
Linear characteristic
4
ON
Operating status MANUAL (MANU)
OFF
Operating status AUTOMATIC (AUTO)
Tab. 3: DIP switches
5) Can be changed via communications software.
Type 8791 REV.2
english
Содержание 323219
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