Quote Originally Posted by Doddy View Post
Cautionary note - I can't recall previous conversations and the details of the relay and whether it has an integral diode - just remember to add a diode if not part of the relay to protect the AXBB against back-emf - pretty sure it's covered in the AXBB documentation.
I did mean to ask why you had a diode on, thanks. The manual doesn't mention anything about back-emf or diode when connecting a mechanical relay to the isolated outputs.