Manual
1 Technical Description
1.5 Functional description of the structure switches
1.5.9 Limit value alarms (S94 to S100, S267 to S268)
124
SIPART DR22 6DR2210
C79000-G7476-C154-03
1.5.9
Limit value alarms (S94 to S100, S267 to S268)
Every limit value alarm A1, A2, A3, A4 is assigned by the structure switches S94, S95, S267,
S268 to the controller-internal variables xd
I
, x
I
to FE12.
With S267 = --1 or S268 = --1 (factory setting), the limit value alarms A1, A2 or A3, A4 are
combined as pairs.
In this case the assignment only takes place with S94 or S95, only hysteresis’ H1.2 or H3.4 are
active.
With S96 (A1, A2) or S97 (A3, A4) the monitoring function Max/Min, Min/Min, Max/Max,
Min/Max can be set.
The response thresholds A1 to A4 and the hysteresis H1.2, H3.4, H2., H4. can always be set in
the structuring mode oFPA. According to the switch position of S98 only the display or the dis-
play and adjustment of A1 to A4 is possible in the process operation level.
In this case the switching cycle of the Shift key (12) is extended by the response thresholds A1
to A4, displayed on the y-display (14):
Controller
I
-- Controller
II
- A1 - A2 - A3 - A4 -- Controller
I
...
The response thresholds are set depending on the assignment physically corresponding to the
display format of the digital x or w display (see chapter 1.5.4, page 40) or in %:
S1
S94, S95
S267, S268
assigned to
Display format
Parameter range
≠
4
≠
6
0
1
2
xd
I
x
I
w
I
according to
dA
I
bis dE
I
-1999 to 19999
maximum -110 % to +110 %
related to
dE
I
- dA
I
= 100 %
4
and
6
0
1
2
3
4
xd
I
x
I
w
I
xv
wv
%
%
%
according to
dA
I
bis dE
I
-1999 to 19999
-110 % to +110 %
maximum -110 % to
+110 % related to
dE
I
- dA
I
= 100 %
5
to
12
5
6
7
xd
II
x
II
w
II
according to
dA
II
bis dE
II
-1999 to 19999
maximum -110 % to
110% related to dE
II
- dA
II
= 100 %
0
to
12
8
#
37
y
#
FE12
%
-110 % to +110 %
Table 1-20
Display format of the limit values A1 to A4
The hysteresis H1.2, H3.4, H2., H4. is set in % in the range from 0.1 to 20 %.
The function of the limit values (Min oder Max) always relates to the display, i.e. in the case of a
falling characteristic (dE*
<
dA*) the direction is reversed. The set Min function for example
becomes a Max function related to the field signal.
Содержание 6DR2210
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Страница 242: ...Manual 7 Application examples for configuring the controller 240 SIPART DR22 6DR2210 C79000 G7476 C154 03 ...
Страница 260: ...Manual 9 Explanation of abbreviations 258 SIPART DR22 6DR2210 C79000 G7476 C154 03 ...
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