Inovance MD800 Series - Page 440

Function Applications
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Application
Step 1: Set F0-03 and F0-04 to 8 to select PID as the main frequency reference input source and
auxiliary frequency input source.
Step 2: Set FA-00 to select a source of PID target reference. If FA-00 is set to 0, set FA-01 (digital setting
of PID). The value 100% of this parameter corresponds to the maximum value of PID feedback.
Figure 4-17 Block diagram of process PID control principle
Step 3: Set FA-02 to select a PID feedback source.
Step 4: Set FA-03 to select a PID action direction.
The following figure shows the logic of process PID control parameter configuration.
Figure 4-18 Block diagram of process PID control parameter configuration