Eaton SLX9000 - Figure 9-27: PID Output with the Values of Example 3

SLX9000 Adjustable Frequency Drives User Manual
9-36 For more information visit: www.eaton.com
MN04003020E
January 2009
Figure 9-27: PID Output with the Values of Example 3
Example 3:
Given values:
Par. 2.9.4, P = 100% PID max limit = 100.0%
Par. 2.9.5, I-time = 0.00 s PID min limit = 0.0%
Par. 2.9.6, 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, the PID output also increases according to the set
values (D-time = 1.00s).
2.9.7 Actual value 1 minimum scale ID336
Sets the minimum scaling point for Actual value 1. See Figure 9-28.
2.9.8 Actual value 1 maximum scale ID337
Sets the maximum scaling point for Actual value 1. See Figure 9-28.
D-part = 10% = 5.00 Hz
10%
10%/s
-10
%
/s
D-part
D-part
D-part = -10% = -5.00 Hz
P-part = 100% *PID error = 5.000 Hz/s
1.00 s
t
Hz
PID Output
Error Value