Implement Emergency Stop on L6470

Posted on September 01, 2015 at 22:16

HI,

I am using an L6470 and have a situation where I must stop motion immediately if an obstruction (think someone's hand) crosses an IR beam. Motion must stop immediately and not via any commands since there can be no risk of a communication error. The data sheet implies that the STBY/RST input signal should not be used when the bridges are active (i assume this means when a motor is in motion). What is the best way to stop motion not using any communication?

This question is similar but went unanswered:

https://my.st.com/public/STe2ecommunities/motordriver_ics/Lists/Motor Driver ICs and Boards/Flat.aspx?RootFolder=%2fpublic%2fSTe2ecommunities%2fmotordriver_ics%2fLists%2fMotor Driver ICs and Boards%2fL6480 - first move after STBYRESET sometimes fails

#l6470-stby/rst