Very General Question: Ways to Delay Relay Activation
In old days, it was made like this:



simulate this circuit &ndash; Schematic created using CircuitLab
R1, R2, C1 are not real values, you have to find it. I have found this way of delaying relays in some old russian milling machine that I have retrofited it with PLC. Before dismantling it, I had to understand what those delays were used for, so I could implent them in PLC. It was long time ago, so I can't remember the values, but it was done in that way.