
31
Operation
9.3.2
DIP switch function
To be able to operate the DIP switch and keys, ensure that the on-site operating lock is not
disabled/blocked (factory setting): with communication software or fieldbus communication.
ON
1 2 3 4
→
To operate the keys and DIP switch, unscrew the four screws on the housing cover and remove the
housing cover.
DIP switch
Position
Function
1
ON
Reversal of the effective direction of the set-point value (
DIR.
CMD
) (set-point value 20...4 mA = position 0...100%)
OFF
Normal effective direction of the set-point value
(set-point value 4...20 mA = position 0...100%)
2
ON
Sealing function active. The valve completely closes below 2%
13)
and opens above 98% of the set-point value (
CUTOFF
)
OFF
No sealing function
3
ON
Correction characteristic for adjusting the operating characteristic
(linearization of the operating characteristic,
CHARACT
)
14)
OFF
Linear characteristic
4
ON
MANUAL operating state
OFF
AUTO operating state
13) Factory setting, can be changed with communication software.
14) The characteristic type can be changed with communication software
Table 10:
DIP switch function
Notes on communication software:
The switch position of the DIP switch takes precedence over the communication software.
If the values of the sealing function (
CUTOFF
) or the correction characteristic (
CHARACT
) need to
be changed with the communication software, the corresponding function needs to be active (DIP
switch ON).
The effective direction of the set-point value (
DIR.CMD
) can only be changed with the DIP switch.
Type 8791, REV.2
english
Содержание 8791 REV.2
Страница 80: ...80 Type 8791 REV 2 english ...
Страница 81: ...www burkert com ...