I was reading this article written by Art:
http://www.machsupport.com/forum/index.php?topic=12457.new;topicseen#newIn this articel it says:
"In the interests of safety, Mach3 always starts in EStop mode with the flashing
Estop button. There are 6 enable outputs that are tied to this operation. They are
programmed to turn on , one by one with a couple hundred ms of time between each
one. This is to stop excessive current being drawn from your power supplies as all the
drivers get enabled at once. Many don’t use that feature but it is there for that purpose.
Having the drive power up from the enable lines can be problematic for some as the
power is removed from them whenever an Estop occurs, but in terms of safety it is a
good idea to have a main relay kill all motor mower anyway when an Estop occurs.
So enabling each drive with an Enable signal is a good way to stop the high current at
startup of the system. "
That sounds great except that when I have the Enable signal set to active high it does not seem to toggle when I go in and out of Estop. Maybe this is a synchronization problem wit the Smoothstepper. The Enable signal does toggle if I have it set to active low, but that is the wrong logic for the G203V. The reason I am interested in this is becasue I had the rectifier bridge diode in my power supply fail at power up a while back. Antek sent me a replacement and said that they had received a bad lot of rectifiers that sometimes failed during the startup surge. I thought this would be a good way of protecting from that.