My personal opinion, Fanuc drives and motors (while good hardware) can be quite difficult to try to reuse outside of a Fanuc control system. The cost and difficulty often exceeding what you would spend on buying more generic hardware. (Especially if you sold the old Fanuc hardware to offset the cost of the replacement.)
It would be one matter if you were attempting this for your own personal challenge. Quite another as paid work for someone else. If someone were paying me to retrofit a machine I probably wouldn't even consider trying to reuse the Fanuc stuff. Todd Zuercher P. Graham Dunn Inc. 630 Henry Street Dalton, Ohio 44618 Phone: (330)828-2105ext. 2031 -----Original Message----- From: Viesturs Lācis <viesturs.la...@gmail.com> Sent: Tuesday, March 28, 2023 3:30 PM To: Enhanced Machine Controller (EMC) <emc-users@lists.sourceforge.net> Subject: [Emc-users] Reusing Fanuc servo drive? [EXTERNAL EMAIL] Be sure links are safe. Hello! I am asked to retrofit some old 3 axis mill to LinuxCNC. It is not yet clear if original servodrives are working or not, so the owner wants to reuse Fanuc servodrives and motors they have removed from another machine. This is label of the servodrive: https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fpasteboard.co%2FLNVjuaBYC3Ox.jpg&data=05%7C01%7Ctoddz%40pgrahamdunn.com%7Cf388c380421348eb548408db2fc30f21%7C5758544c573f47cebee96c3e0806fb43%7C0%7C0%7C638156287067372405%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=dzJeiXT2W5hmtFIPAJvrij9mCVBPm4NHYlDYQzcFw0A%3D&reserved=0 I have zero experience with Fanuc, so I am hoping for collective wisdom to understand - is this a good idea? My main concern is PID tuning in the drive. Do I understand correctly that even with the original motor and cabling but different load it will not be stable and reliable? Or should I look for bigger stepper motors in case original drives have retired? Viesturs _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Flists.sourceforge.net%2Flists%2Flistinfo%2Femc-users&data=05%7C01%7Ctoddz%40pgrahamdunn.com%7Cf388c380421348eb548408db2fc30f21%7C5758544c573f47cebee96c3e0806fb43%7C0%7C0%7C638156287067372405%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=uykRj%2FO%2FeiMw1dW3RU0yG26B%2Fh38Efwcnaud%2F2jTbGc%3D&reserved=0 _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
