84
EB 8387-5 EN
Appendix
Code
no.
Parameter
– Readings/
values [default setting]
Description
9* Travel/angle range end
(upper x-range value)
20.0 to [100.0 %] of the
nominal range, ESC
Specified in mm or angle °
provided Code
4
is activated.
Upper range value for travel/angle in nominal or operating
range.
The value is displayed or must be entered.
The characteristic is adapted.
Example:
The operating range is modified, for example to limit
the range of a control valve which has been sized too large. For
this function, the entire resolution range of the set point is convert-
ed to the new limits.
0 % on the display corresponds to the adjusted lower limit and
100 % to the adjusted upper limit.
10* Lower travel/angle limit
(lower x-limit)
0.0 to 49.9 % of the operat-
ing range, [OFF], ESC
Lower limitation of the travel/angle of rotation to the entered
value.
The characteristic is not adapted.
See also the example in Code 11.
11* Upper travel/angle limit
(upper x-limit)
50.0 to 120.0 %, [100 %] of
the operating range, OFF,
ESC
Limits travel/angle to the entered value (upper limit)
When set to '
OFF
', the valve can be opened past the rated travel
with a set point outside of the 0 to 100 % range. The characteris-
tic is not adapted.
Example:
In some applications, it is better to limit the valve travel,
e.g. if a certain minimum medium flow is required or a maximum
flow must not be reached. The lower limit must be adjusted with
Code
10
and the upper limit with Code
11
. If a tight-closing func-
tion has been set up, it has priority over the travel limitation.
14* Set point cutoff decrease
0.0 to 49.9 %, [1.0 %], OFF,
ESC
If the set point w reaches up to the entered percentage at the final
value that causes the valve to close, the actuator is immediately
completely vented (with AIR TO OPEN) or filled with air (with AIR
TO CLOSE). This action always lead to maximum tight-closing of
the valve.
Codes 14/15 have priority over Codes 8/9/10/11.
Codes 21/22 have priority over Codes 14/15.
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