I really did not think it was the PLC.
When the output comes on but the relay does not activate . . .
Did you check for continuity between the Y7 output terminal and the relay coil?
Does the common terminal for the Y7 read continuity to the 0 volts for the relay coil?
True story. I had a machine that was being problematic. I went through
every wire terminal in the panel, tightening them all up - and there were a lot
of them that were loose. When I was finished the machine ran with no more problems.
Poet.
When the output comes on but the relay does not activate . . .
Did you check for continuity between the Y7 output terminal and the relay coil?
Does the common terminal for the Y7 read continuity to the 0 volts for the relay coil?
True story. I had a machine that was being problematic. I went through
every wire terminal in the panel, tightening them all up - and there were a lot
of them that were loose. When I was finished the machine ran with no more problems.
Poet.