9. Basic functions
Analog Frequency setting via Potentiometer (V0) on the Keypad
Used to prevent fluctuations in analog input signals caused by noise
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| Parameter Name |
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| Set |
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| Min/Max |
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| Factory |
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| Drive |
| 0.0 |
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| [Frequency Command] |
| - |
| - |
| - |
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| Frq |
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| [Frequency Mode] |
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| 2 |
| 0/8 |
| 0 |
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| I/O group |
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| I 1 |
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| [Filter time constant for V0 input] |
| 10 |
| 0/9999 |
| 10 |
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| I 2 |
| [V0 input minimum voltage] |
| - |
| 0/10 |
| 0 |
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| V |
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| I 3 |
| [Frequency corresponding to I2] |
| - |
| 0/400 |
| 0.0 |
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| Hz |
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| I 4 |
| [V0 input max voltage] |
| - |
| 0/10 |
| 10 |
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| V |
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| I 5 |
| [Frequency corresponding to I4] |
| - |
| 0/400 |
| 60.0 |
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| Hz |
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Set Frq – [Frequency Mode] to 2.
The set frequency can be monitored in 0.0- [Frequency Command].
I 1 : [Filtering time constant for V0 input]
Effective for eliminating noise in the frequency setting circuit.
Increase the filter time constant if steady operation cannot be performed due to noise. A larger setting results in slower response (t gets longer).
V0 input
Set freq
t
I 2 - I 5 : [Min/Max input voltage and corresponding frequency setting]
The corresponding frequency to V0 input voltage is settable.
Example: When setting I 2 - [V0 input minimum voltage] = 2V, I 3- [Frequency corresponding to I 2]= 10Hz, I 4 - [V0 input max voltage] = 8V and I 5 - [Frequency corresponding to I 4]= 50Hz, the following figure is shown.
Freq. |
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setting | 50Hz |
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I 5 |
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I 3 | 10Hz |
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| 2V | 8V | V0 input |
| I 2 | I 4 |
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