BQFC
ASCII - Command | BQFC |
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Syntax Transmit | BQFC [Data] |
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Syntax Receive | BQFC <Data> | Available in |
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Type | Variable rw | MMI | No | |
ASCII Format | Float | CANBus Object Number | 3664 (hex) | |
DIM | Hz | PROFIBUS PNU | 1956 (dec) IND = 0000xxxx (bin) | |
Range | 20 .. 1000 | DPR | 356 (dec) | |
Default | 200 |
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Opmode | All | Data Type Bus/DPR | Integer32 | |
Drive State | - | Weightning | 1000 | |
Start Firmware | 4.00 |
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Configuration | No | Revision | 1.4 | |
Function Group | Velocity Controller | EEPROM | Yes | |
Short Description | Center Frequency of the Bi-Quad Filter | |||
Description
The BQFC defines the center frequency of the Bi-quad filter, which can be calculated according to the following equation:
BQFC = SQRT( OmegaAR * OmegaR ) [Hz]
Here, the anti-resonance frequency OmegaAR and the resonance frequency OmegaR can be respectively read from the bode plot of the velocity control loop.
How to make the bode plot and to set Bi-quad filter please reference the application note Suppression of Torsional Oscillations.