LAUNCHXL-F28379D: Calculating speed using eQEP block on LaunchXL-F28379D

Akarsh Murthy

Part Number: LAUNCHXL-F28379D
Other Parts Discussed in Thread: C2000WARE

Hello,

I am using LaunchXL-F28379D with Simulink to run an induction motor through a 3 leg inverter.

I am able to get the motor to run at a rated speed of 1400rpm and control the speed too.

Next I want to read the speed in order to implement a closed loop control.

I am unsing Autonics Rotary encoder with a resultion of 2500 pulses per revolution.

How do I configure the eQEP block to read the speed of my motor.

I have connected 5 pins of encode to 5 pins on eQEP_A.

Any help will be highly appreciated.

Thanks,

Akarsh M

0 Nirav Ginwala over 5 years ago

Hi Akarsh,

Please go through the example in C2000Ware (eqep_ex2_pos_speed) that will help you understand the eQEP configuration for speed/position measurement.

Regards,

Nirav

0 Akarsh Murthy over 5 years ago in reply to Nirav Ginwala

Hello Nirav,

Is there any Simulink example or a Simulink model illustrating the same?

I am implementing speed calculation even from DM550 examples for induction motor control example.

But something seems to be amiss and values of actual speed and speed in Simulink model dont match.

Regards,

Akarsh

0 Nirav Ginwala over 5 years ago in reply to Akarsh Murthy

Hi Arkarsh,

For Simulink example you may want to post in the Mathworks forum, as they support all the simulink examples.

Regards,

Nirav

C2000 microcontrollers forum