Setting The Split Range Outputs And The Actuating Time In K-Controllers (S2 = 0) - Siemens SIPART DR22 Manual

Manual
-- Note for cascade control
In cascade controllers first the direction of effect of the follow--up controller is determined
and set as described above if necessary. Then the direction of effect of the master con-
troller is adapted to the system. This is done as described above. It must be noted that
the follow--up controller has been switched to internal operation because manual adjust-
ment of the master controller is performed by adjusting the setpoint of the follow--up con-
troller. The display should be switched to the master controller with the Shift key (12) to
observe the main manipulated variable.
4.2 Setting the split range outputs and the actuating time
in K-controllers (S2 = 0)
D Split range outputs Y1, Y2
In split range operation the two partial manipulated variables must be adapted to the control
range of the individual final control elements with the slope setting so that as constant a
system amplification Ks as possible is achieved over the whole setting range.
Determine the system line amplifications in the partial setting ranges in manual operation.
Δx
Ks1=
andKs2=
Δy1
Then set Y1 and Y2 so that
at S65 = 0 rising -- falling
100 % -- Y1
=
Y2
D Floating time tY
At S62 = 0: set tY to the floating time of the following actuating drive. If the control circuit is
to be calmed additionally, e.g. to avoid hard impact on the actuating drive, tY can be further
increased in Automatic operation.
At S62 = 1: set tY to the desired floating time for the incremental follow-up variable.
SIPART DR22 6DR2210
C79000-G7476-C154-03
Δx
Δy2
Ks1
Ks2
4.2 Setting the split range outputs and the actuating time
at S65 = 1 rising -- rising
Ks1
100 % -- Y1
=
Ks2
Y2
4 Commissioning
217