IKA labworldsoft User Manual
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A
0D[LPXP DQGRU 0LQLPXP 2XWSXW 9DOXH
can be specified via the
0DQLSXODWHG 9DULDEOH
/LPLW
. These values are not exceeded or undershot, even if the control algorithm would generate
this result.
Specification of a maximum and/or minimum manipulated variable is always the absolutely
imperative if exceeding or undershooting of a certain manipulated variable might result in a
hazardous situation (e.g. the speed of a stirring motor may not exceed a specific maximum value
in order to prevent the medium from being sprayed or to avoid damage to the stirring vessel).
In this case ascertain the speed at which your test set-up will safely function and set this value as
the maximum manipulated variable.
Carry out the following instructions:
1. Call up the parameters window by double clicking on the icon.
2. If necessary, enter the
1DPH
of the PID controller into the "Designation" text field.
3. Enter the PID controller parameters (as described above) into the entry fields.
4. If necessary, specify the upper and/or lower manipulated variable limit.
The PID controller is suitable in connection with the
"PWM" control block
for precise temperature
control with a heating mushroom (controlled by means of the
Data Control IO
) or for stirring
motor speed control as a function of the medium viscosity (measured with a
VISCOKLlCK VK 600
).