Chapter 12 Descriptions of Parameter SettingsC2000 Plus
12.1-08-1
08 High-function PID Parameters
You can set this parameter during operation.
08-00
Terminal Selection of PID Feedback
Default: 0
Settings 0: No function
1: Negative PID feedback: by analog input (Pr.03-00–03-02)
2: Negative PID feedback: by PG card pulse input, without direction
(Pr.10-02)
3: Negative PID feedback:by PG card pulse input, with direction (Pr.10-02)
4: Positive PID feedback: by analog input (Pr.03-00–03-02)
5: Positive PID feedback: by PG card pulse input, without direction
(Pr.10-02)
6: Positive PID feedback: by PG card pulse input, with direction (Pr.10-02)
7: Negative PID feedback: by communication protocols
8: Positive PID feedback: by communication protocols
Pr.08-00 ≠ 0 enables the PID function.
Negative feedback:
Error = + Target value (set point) – Feedback. Use negative feedback when the detection value
increases if the output frequency increases.
Positive feedback:
Error = - Target value (set point) + Feedback. Use positive feedback when the detection value
decreases if the output frequency increases.
When Pr.08-00 ≠ 7 or ≠ 8, the input value is disabled. The setting value does not remain when
the drive is powered off.
When Pr.08-00 ≠ 0, the related applicable parameters include:
Pr.00-20 (Master frequency command source (AUTO) / Source selection of the PID target)
Pr.03-00–03-02:
When Pr.00-20 = 2 (External analog input), set Pr.03-00–03-02 = 4 (PID target value)
When Pr.08-00 = 1 or 4, set Pr.03-00–03-02 = 5 (PID feedback signal)
Refer to the following description for details.
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