Process Unit 73 LF - Knick

Process Unit 73 LF
How to configure the analog controller
(with option 483 only)
Select the menu item “Output 2 / Controller” with
in the Parameter Setting menu and confirm
with .
Move to “Controller” with and confirm with
.
To open the “Controller” submenu, press or
.
Select controller type A, B or C with and
and confirm with .
To select the control parameters, open the submenu
“Control Parameters” with or
and confirm with .
The information text shows the selected controller
type and the controller output range.
20 mA
Output
2
Controller output Y [%]
100
50
0
Type A: 3-Way Mixing Valve
For the 3-way mixing valve, the analog controller
output operates in the manipulated variable range
–100 % to +100 % *) . A controller output Y = 0 %
corresponds to a current of 10 or 12 mA.
*) Controller output range corresponds to
0(4) – 20 mA
–50
0(4) mA
–100
0
50
100
Controlled variable X W [mS/cm]
The parameters of the controlled variable which
controls the controller are set with and .
Press and to choose between the control
parameters. Enter each of the control parameters
with the scrolling keys and the cursor keys (see
also Pg. 2–5) and confirm the entries with .
Enter beginning of control, corner X, corner Y and
reset time for the left control range (: Controlled
variable < setpoint).
9–38 Capabilities