45
i
For Self Tune ( Step Response Tuning ) operation
:
1 - Tune selection parameter in “run List” menu must be selected
Self tune
Or
Auto-Self Tune
2 - For
Self Tune ( Step Response Tuning )
operation, firstly power off and then
apply power to the device.
3 -
For being started Tune operation (Auto Tune or Self Tune) control form must be P,
PI, PD or PID.
4 -
If process set value is changed whileTune operation is being performed, Tune
operation is canceled.
Process
Value
Time
100%
Process
Output
Stun
Start
Value
Process Set
Value ( )
Start Value - [ ( Start Value-Set) ]
2
PID coefficients were determined
Process
Value
Time
100%
Process
Output
Stun
Start
Value
PID coefficients are determined
and system becomes stable.
Start Value + [ ( Set - Start Value) ]
2
Process Set
Value ( )
If cooling function and PID control form is selected for the system;
If set value is less than process value, process output becomes active till to the
Temperature - [(Temperature-Set) / 2]
value. When process value reaches to this
value, process output is reduced to 0% and it calculates PID coefficients.
