Siemens SIPART DR22 Manual page 241

Manual
Example 4
Input range freely connected
Block diagram control circuit
BE
x3 x2 x1
Structure switch Strs
Switch Value
S 4 1 Input freely connectable
S 5 2 AE1: 4 to 20 mA
S 6 2 AE2: 4 to 20 mA
S 7 2 AE3: 4 to 20 mA
S 69 1 AA1: 4 to 20 mA
Parameter oFPA
Parameters Value
dP1 *) Decimal point
dA1 *) Display start value
dE1 *) Display full scale value
Parameter onPA
Parameters Value
cP1 *) Proportional action
factor
tn1 *) Integral action time
*) Setting as required
Freely connectable input range FdEF
Function YES/
block NO
MA1 YES Max-selection
AS1 YES Switch analog signal
Freely connectable input range Fcon
Sink
Source
FE1 MA1.4 x1 to max-selection
MA1.1 AS1.4 Input MAX from switch
MA1.2 AE3A Input MAX from AE3A
MA1.3 0.050 Factory setting
AS1.1 AE1A Input switch from AE1
AS1.2 AE2A Input switch from AE2
AS1.3 bE01 Input switch from BE1
Freely connectable input range FPos
Block no. Position
01 AS1
02 MA1
SIPART DR22 6DR2210
C79000-G7476-C154-03
Fixed setpointe controller with K-output
The active controlled variable x is selected from three inputs:
-- switching between x1 and x2 via digital outputs
-- max-selection between X1/x2 and x3
The controlled variable x1 / x2 / x3 of four-wire transmitters
(4 to 20 mA) go to the analog inputs AE1 / AE2 / AE3. Switching
between between AE1 (x1) and AE2 (x2) via digital input 1.
The manipulated variable y (4 to 20 mA) goes via analog output
1 to a position controller SIPART PS.
PS
Meaning
Meaning
Meaning
Meaning
+
U
H
Meaning
Attention:
-- All settings starting from the factory
setting (APSt) of the controller
-- The above settings/adaptations are absolutely essen-
Meaning tial. Other parameters (e.g. A1 / A2 / ...) as required.
7 Application examples for configuring the controller
SIPART-DR22 Standard controller
AE3 AE2 AE1 AA
-- -- --
3 2 1
-- + -- + --
x3 x2 x1
PE
UC 24 C
N
L
PE
AC 115 V
N
AC 230 V
L
BA L M
8 7 6 5
--
SIPART
PS
+
239