E6581381
2) Types of PID control interfaces
| Process quantity input data (frequency) and feedback input data can be combined as follows for the PID | |||
| control of the |
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| Process quantity input data (frequency setting) | Feedback input data | ||
| Setting method | Frequency setting mode selection | PID control | |
| HOQF/ H | H | ||
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| (1) | External analog setting | : External analog input | |
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| VIA (DC: | VIA | |
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| (2) | External analog setting |
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| VIB (DC: | : External analog input | |
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| (3) | Panel input setting Internal | VIB | |
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| (4) | Serial communication |
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| (5) | UP/DOWN from external |
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| (6) | Internal | - (EOQF=0) |
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| Note 1: About the setting of HOQF and H: Do not select the same terminal that is used feedback | |||
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| terminal (VIA or VIB). |
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Note 2: When using VIA terminal, set H or H respectively to 52 or 53 to put out signals to | ||||
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| When using VIB terminal, set H or H respectively to 60 or 61 to put out signals to |
or
You can also specify a frequency agreement detection range (H). ⇒ For more information, see section 6.3.5.
3) Setting PID control
Set "" or "2" in the extended parameter H (PID control)
(1) Set parameters CEE(acceleration time), and FGE (deceleration time) to the system fitting values.
(2) To limit the output frequency, set parameters WN (upper limit frequency) and NN (lower limit frequency). If process quantities are set from the operation panel, however, the process quantity setting range will be limited by the settings of WN and NN.
4) Adjusting the PID control gain level
Adjust the PID control gain level according to the process quantities, the feedback signals and the object to be controlled.
The following parameters are provided for gain adjustment:
Parameter | Setting range | Default setting |
H | 0.30 | |
H | 0.20 | |
H | 0.00 |