Chapter 5 ParametersVFD-S Series
Group A: PID Control
Factory Setting: d0
Settings | d0 | Disable |
| d1 | Negative PID feedback from external terminal (AVI) 0 to +10V |
| d2 | Negative PID feedback from external terminal (ACI) 4 to 20mA |
| d3 | Positive PID feedback from external terminal (AVI) 0 to +10V |
| d4 | Positive PID feedback from external terminal (ACI) 4 to 20mA |
Select an input terminal to serve as the PID feedback location. Please verify the feedback location is different from the Frequency Set Point location and J1 for selecting ACI or AVI must be in the correct position. (Refer to Pr.
Negative feedback = Positive target value – detection value.
Positive feedback = Negative target value + detection value.
Settings d0 to d999 (d100 means gain value is 1)Factory Setting: d100
To adjust feedback detective gain value. It is used to adjust target value error.
Proportional Gain (P) | Unit: 1 | |||
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| Settings | d0 to d999% (d0: disable) (d100 means | Factory Setting: d100 | |
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| gain value is 1) |
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This parameter is used to determinate error gain. If I = 0 and D = 0, doing proportional gain | ||||
operation. |
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Integral Time (I) |
| Unit: 1 | ||
| Settings | d0 to d999 | Factory Setting: d100 | |
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| d0 | Disable |
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When this parameter is defined to gain is 1 and error value is fixed, integral value is equal to | ||||
error value as the setting of integral time is attained. |
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Derivative Control (D) | Unit: 1 | |||
| Settings | d0 to d100 | Factory Setting: d0 | |
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| d0 | Disable |
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Revision August 2006, SE08, SW V2.61 |
