Follow-Up Control - Samson Trovis 6493 Mounting And Operating Instructions

Practical examples
4
By default, the output variable Y is set up for a continuous signal ranging from 4 to 20 mA.
As a result, the output variable does not need to be modified in this example.
The following table lists the required settings in short, together with the parameter definitions:
Setup level
Main group Function
-CO-
I -CO-
IN1
-CO-
IN2
-CO-
CLAS
SETP -CO-
SP.VA
CNTR -CO-
C.PID
-CO-
DIRE
Operating level
Press selector key to view WE.
Press enter key.
62
EB 6493-1 EN
Setting
4-20 mA
(factory de-
fault)
4-20 mA
X In2 (factory
default)
In1 (factory
WE
default)
WE on
on (factory W
W
default)
Pld KP
TN
TV
TVK1
dir.d
Parameter Value
-PA-
IN1 0 [bar]
IN1 10 [bar]
IN2 0 [bar]
IN2 10 [bar]
5.2 [bar]
WINT 0 [bar]
WINT 10 [bar]
0.8
16.0
6.0
1.0
–
Comment
Define measuring
range for input 1, WE
assigned (factory de-
fault)
Define measuring
range for input 2, X
assigned (factory de-
fault)
Assign controlled vari-
able X to input In2
Assign reference vari-
able to input In1
Activate WE and
follow-up control with
it
Value for internal
variable W
Measuring range for
W
Select PID action and
specify control param-
eters
Change operating di-
rection, if necessary.
Define WE as active
reference variable