Burkert Type 8791 - Manual (Page 46)

46
ConfiguringAuxiliaryFunctions
8.5.3. X.LIMIT -
limiting the mechanical Stroke range
This function limits the (physical) stroke to specified % values (lower and upper). In doing so, the stroke range of
the limited stroke is set equal to 100%. If the limited stroke range is left during operation, negative actual posi-
tions or actual positions greater than 100% are shown.
Factory setting: Lower position limit = 0%, upper position limit = 100%
100
0 %
% X.LIMIT lower position limit
upper position limit
Fig. 38: X.LIMIT function
Adjustment ranges:
Lower position limit: 0 – 50% of the entire stroke
Upper position limit: 50 – 100% of the entire stroke
The minimum distance between the upper and lower stroke limit is 50%. Therefore if one value is entered with a
minimum distance of < 50% the other value is adjusted automatically.
Limited
stroke
Unlimited
stroke
Physical
stroke (%) Limited
stroke (%)
Set-point value
[mA] (
INPUT)
Adjustment
range
in
MANUAL
mode
Control
range
in
AUT
OMA
TIC
mode
Fig. 39: X.LIMIT graph
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Software Tool - Positioner