What is your opinion of such a solution: put simple magnets on all of the motor shafts, install hall-sensor, connect it to LinuxCNC and program it to estop when encoder and hall-sensor signals mismatch. Good recommendation I think would be to connect hall-sensor and encoder using different cables, connectors and maybe, even routing way.
I understand this is rough estimation, but one revolution is enough to stop the machine. Solution seems quite universal and cheap. And yes, it may be called an encoder redundancy. Machine will not work if either hall or encoder does not work. Hall sensor may be replaced with simple optical sensor. What do you think? -- Marius ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
