Description of parameters
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Figure 4. PID output curve with the values of Example 2.
Example 3:
Given values:
Par. 2.1.12, P = 100%
Par. 2.1.13, I-time = 0.00 s
Par. 2.1.14, D-time = 1.00 s
Min freq. = 0 Hz
Error value (setpoint – process value) = 10%/s Max freq. = 50 Hz
As the error value increases, also the PID output increases according to the set values (D-time
= 1.00s)
Figure 5. PID output with the values of Example 3.
163
PID
activation
(2.9.1)
Activate the PID control by setting value 1 for this parameter.
Hz
t
D-part
D-part
P-part=5 Hz
Error=10%
D-part
P-part= -5 Hz
Error= -10%
PID output
NX12k69
Error value
Hz
t
D-part=10%=5,00 Hz
D-part= -10%= -5,00 Hz
P-part=100% *PID error = 5,00Hz/s
1,00 s
10%
PID output
NX12k72
Error value
