Function Application
‑514‑
Figure 3‑20 Block diagram of process PID control parameter settings
The upper limit, lower limit, and range of the output frequency are as follows when
PID is used as the main frequency reference (for example, PID alone or main and PID
together used as the frequency source).
When the reverse cut‑off frequency is 0 or reverse running is inhibited (that is, in one
of the following three conditions):
(1) FA‑08 = 0, F8‑13 = 0; (2) FA‑08 = 0, F8‑13 = 1; (3) FA‑08 ≠ 0, F8‑13 = 1
Output upper limit = Frequency upper limit
Output lower limit = Frequency lower limit
Output range = Frequency lower limit to frequency upper limit (F0‑14 to F0‑12)
When the reverse cut‑off frequency is not 0 and reverse running is allowed (FA‑08 ≠ 0,
F8‑13 = 0):
Output upper limit = Frequency upper limit Output lower limit = Frequency lower
limit: ‑Reverse cut‑off frequency
Output range = ‑Reverse cut‑off frequency to +frequency upper limit (‑FA‑08 to +F0‑12)
To Next Page
Loading...
