Is an Local-Off-Remote switch just another name for a Hand-Off-Auto switch?
If so, I assume that a LOR switch would be implemented similar to the HOA switch in the attached pdf.
I am normally used to working on stand-alone machinery that performs a specific sequence and then repeats after being unloaded and loaded by an operator.
Now consider some machinery running a continuous process. There are approximately 10 motors which all must be running and remain running for the process to continue. Why would a customer specify that they want LOR switches for all the motors? It seems to me that there would be the danger of somebody walking by and turning off one motor thus disrupting the entire process. The process in question is not trivial to start up, especially if not "emptied" out properly before stopping.
Thoughts? How are LOR switches implemented in your facility?
If so, I assume that a LOR switch would be implemented similar to the HOA switch in the attached pdf.
I am normally used to working on stand-alone machinery that performs a specific sequence and then repeats after being unloaded and loaded by an operator.
Now consider some machinery running a continuous process. There are approximately 10 motors which all must be running and remain running for the process to continue. Why would a customer specify that they want LOR switches for all the motors? It seems to me that there would be the danger of somebody walking by and turning off one motor thus disrupting the entire process. The process in question is not trivial to start up, especially if not "emptied" out properly before stopping.
Thoughts? How are LOR switches implemented in your facility?