At least for some safety rated gate-sensors (such as Allen Bradley's RFID contact switchs) the signal is an OSSD-type, and I don't know if FANUC's EAS-inputs can handle this. Instead, you would use a safety relay.
At least for some safety rated gate-sensors (such as Allen Bradley's RFID contact switchs) the signal is an OSSD-type, and I don't know if FANUC's EAS-inputs can handle this. Instead, you would use a safety relay.
Ok, for example example if i'm dealing with a safety relay i can send the signal to eas or ees with aux contact but if i'm using a safety plc is my safey output that gonna be wired to ees or eas expect if i send safety output by communication protocol then i don't need to hard wire my ees/eas to my safety output ?
Ok, for example example if i'm dealing with a safety relay i can send the signal to eas or ees with aux contact but if i'm using a safety plc is my safey output that gonna be wired to ees or eas expect if i send safety output by communication protocol then i don't need to hard wire my ees/eas to my safety output ?
Sorry, not quite sure what you mean.
A safety relay does exactly what it is called; it safely relays a signal. For this signal to be relayed, the safety relay needs to have the safety device input a signal to it, and the safety relay also has to be reset each time the input drops.
If you don't use a safety relay to provide the External Emergency Stop- or the Emergency Auto Stop ("FENCE") signals, but instead use a safety PLC, then I would assume that depending on which model/make, the output signal might either be OSSD-type or some other sort. Whether or not this is possible to interpret for the FANUC controller, I don't know.
However, most installations I have seen with this setup was hardwired directly from the PLC to the robot controller.
You can also use a safety rated communication bus protocol (such as ProfiSAFE, EtherCat Safety etc.) to provide these signals from the safety PLC. In this case, the physical terminals for these signals will be ignored.
Sorry, not quite sure what you mean.
A safety relay does exactly what it is called; it safely relays a signal. For this signal to be relayed, the safety relay needs to have the safety device input a signal to it, and the safety relay also has to be reset each time the input drops.
If you don't use a safety relay to provide the External Emergency Stop- or the Emergency Auto Stop ("FENCE") signals, but instead use a safety PLC, then I would assume that depending on which model/make, the output signal might either be OSSD-type or some other sort. Whether or not this is possible to interpret for the FANUC controller, I don't know.
However, most installations I have seen with this setup was hardwired directly from the PLC to the robot controller.You can also use a safety rated communication bus protocol (such as ProfiSAFE, EtherCat Safety etc.) to provide these signals from the safety PLC. In this case, the physical terminals for these signals will be ignored.
ok understand, also for me i see a lot of people only using a safety relay instead on using safety plc. So if i use a safety relay, i connect my e-stop or fence gate or light curtains to the input of safety relay, also add a reset button if needed. and my auxilary contact(feedback) that should be wired to ees or eas of robot safety board. This should be correct ?
Yeah, sorry. If you're not sure on how to connect the safety circuit, I would suggest that you get in touch with an electrical engineer or equivalent.
I have explained the theoretical principle for this functionality, but I will not provide a schematics or instructions on how to connect it, since it seems that you are not sufficiently knowledgeable regarding this topic.
Better for you to get som training, or outsource the work to someone who has the proper understanding and knowledge. After all, this is a safety-related topic that when done wrong could jeopardize the life or well-being of a human.
.. my auxilary contact(feedback)..
AFAIK auxiliary and feedback are different things. So the answer on
So if i use a safety relay, i connect my e-stop or fence gate or light curtains to the input of safety relay, also add a reset button if needed. and my auxilary contact(feedback) that should be wired to ees or eas of robot safety board. This should be correct ?
is no.
No. Feedback is for the monitoring system. Relays are typically used due to it being dry contacts.
