FraserJim
Member
Troubleshooting a Eaton Easy719-AC-RCX. Have three digital inputs and one relay output. PLC input power 120VAC. Each digital input has a 120VAC source thru a NO dry contact. Same source as PLC power. Relay output also 120VAC. Getting nuisance relay output closures when none of the three input contacts close. When measuring with DMM, am measuring 72VAC between 120VAC source and PLC inputs. This is with the input contacts open. Also, when measuring, with DMM on continuity, it shows NO, but triggers the input. Easy719 manual says ON signal 79V. Do I have a problem with the PLC I/O, wiring, or other? Thanks