Project Planning Manual
SIPART DR20
Parameter
Char-
acter
Display
on (6)
Min.
value
Max.
value
Factory
setting
Dim. Remarks
Derivative-action gain
Vv
“uu”
1.00
10.0
5.00
-
Proportional gain
Kp
“cP”
0.100
0.100
-
100.0
Reset time
“tn”
1.0
9984
s
With PI controller S28 = 0
Tn
9984
Working point
Yo
“Yo”
Auto
0.0
99.5
Auto
%
With P controller S28 = 1
Derivative-action time
Tv
“tu”
OFF
1.00
1000 OFF
s
Filter time constant for xd
TF
"tF"
OFF
1.00
1000 OFF
s
Setpoint ramp
Tw
"tS"
OFF
1.00
9984
100
OFF s
Tv=Td
∗
Vv
For S1
≠
7/8
For S1 = 7/8
With" oFF" the
D element, the
filter or the
setpoint ramp is
switched off
Valve positioning time /
Period y+
Ty “ty” 1.00
1000
60.0 s
Period y-
T-
“t-“
-1999
1000
60.0
s
Only for S controllers, T+ / T- apply to the
two output channels with the two-position
controller S2 = 1
Start of scale value 0 %
LA
“LA”
-1999
9999
0.0
-
Vertex 1/8 = 12.5%
L1
“L1”
-1999
9999
0.0
-
Vertex 2/8 = 25%
L2
“L2”
-1999
9999
0.0
-
Vertex 3/8 = 37.5%
L3
“L3”
-1999
9999
0.0
-
Vertex 4/8 = 50%
L4
“L4”
-1999
9999
0.0
-
Vertex 5/8 = 62.5%
L5
“L5”
-1999
9999
0.0
-
Vertex 6/8 = 75%
L6
“L6”
-1999
9999
0.0
-
Vertex 7/8 = 87.5%
L7
“L7”
-1999
9999
0.0
-
See page 91
The parameters L1 to L7 are only required
for a display of engineering units with
linearization (S14 = 1).
Full-scale value 100 %
-1999
100.0
-
LE
“LE”
9999
Set limitation
Start
wa
9999
“SA”
-1999
-5.0
-
Set limitation
End
we
“SE”
-1999
9999
105.0
-
Only values wa/wva
≤
we/wve can be
set.
Safety Setpoint
wS
“SH”
-1999
9999
0.0
-
Alarm value, minimum
a2
“A2”
-1999
9999
-5.0
-
Alarm value, maximum
a1
“A1”
-1999
9999
5.0
-
Only values a2
≤
a1 can be set. With
S24 = 1, a1 and a2 can also be set in the
operating level.
Response threshold of xd
A
“A”
0.0
10.0
0.0
%
Adjust A > 0 with S2 = 2 and 3
Manipulated variable
limitation
Start
ya “yA” -10.0
110.0
%
-5.0
Manipulated variable
limitation
End
ye “yE” -10.0
110.0
105.0
%
Safety manipulated variable
ys
“yS”
-10.0
110.0
0.0
%
Only values ya
≤
ye can be set.
Special features:
S2 = 1 : ya and ye specified dead zone
S2 = 2 : ya/ye ineffective, yS only
0/100
%
S1 = 10 : ya/ye for 2
nd
limit output
min./max.
Constant 1
(zero)
c1
“c1”
-199.9
199.9
0.0
%
Constant 2
(factor)
c2
“c2”
-199.9
199.9
0.0
%
Table 6/1 Parameters
90