Embedded Category: F280x
Block Category: TI 32-bit DMC
Block Inputs
•QE: fractional value of position in the range of 0 –1. The current quadrature encoder count is multiplied by the inverse of the maximum counts per revolution resulting in a value in the range of 0 –1.
•Dir: 1 = forward direction, -1 = backward
Block Output
•Wr: fraction of maximum speed (Base Electrical Frequency)
Operating Mode Availability
•Simulation mode: YES
•C code generation mode: YES
The QEP Speed block determines the rotational speed based on modulo-encoder tick counts.
Base Electrical Frequency: Indicates the maximum rotational speed of the electrical field between poles.
Control Sampling Rate: Indicates sampling rate of the control running on the target.
Low Pass Cutoff: A low-pass filter is applied to the successive differencing used to determine speed from successive QEP measurements. Speed changes above the cut-off frequency will be attenuated.