Under which conditions "RunOff" command is generated in a ABB 800xA DCS system???
we have an ABB 800xA DCS automation system in our sinter plant. Now many of the equipments mostly controlled by ABB drives are stopping randomly, no fault messages are shown in the drives and no interlock is shown as active in the equipment faceplate , only "Runoff" messages are displayed on the event list in the faceplate of these equipments. I want to know under which circumstances this "runoff" command is generated.