I have multiple robot cells which have more than 1 robot per cell and each robot has its own controller cabinet. The entry gates are wired to the Fence Open safety signals, but recently our safety department has requested additional measures. The scenario they want to prevent is this... If one were to switch the controller out of auto, enable a teach pendant, and enter the cell, they want to make sure no other robot can be jogged while the original person is in the cell. I'm considering running the controller Auto/T1 switches through safety relays so that I can control the SERVO ON signal. Does anyone have a better idea? Robots are all R30i-B, communicating through ethernet to an AB L6X or L7X that is not a safety PLC.
Thanks