> Greetings all; > > I have added a 40 amp SSR in the relay box with the two that are > sequencing the spindle's psu startup for a soft start, but its not > intentionally connected to those 2 other than as a power src when its > enabled. Except this one is to be enabled by the E-stop.out signal when > its on, f1 pushed once after start. The idea is to turn on motor power > etc to the remainder of the system with the F1 key.
Be aware that failure mode of SSR I am pretty sure is short ciruit so that it does not turn off. Expect SSR is implemented with a thyristor or mayb triac and they will not turn off a load with low power factor. Even though it is very likely to work most of the time I would not fully trust a F1 button for emergency stop. I would consider these two above as a problem if you need some safe way to turn of machine then for example changing tool or climbing into the machine for some reason or for some reason need to tuch a part that might cut fingers. _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
