**Embedded Category:** C2407, F280x

**Block Category: **TI 16-bit DMC, TI 32-bit DMC

**Block Inputs**

•**QE**: fractional value of position between zero and one. The current
quadrature encoder count is multiplied by the inverse of the maximum counts per
revolution resulting in a value between zero and one.

•**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.