Re: Question on Mariss' E-Stop circuit

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "Monte" <montejw@e...> wrote:

>
> Is there going to be any problem using this circuit as the

main "on -

> off" mechanism for my controller? Will the dump resistor and my big
> capacitor handle the "dump cycles"? I'm just getting the machine
> going so I think there is going to be more "on - off" cycles than
> usual for a while. Taig mill, 28vdc unregulated ps, steppers.
>
> Or is there another way?
>
> TIA,
> Monte
>
> Files section >
> Circuits >
> Misc. Circuits >
> servo E-Stop Circuit.pdf
>
>

http://f3.grp.yahoofs.com/v1/UPMuQgTOIOnHlXyh0NethHAbWMdautveTq42paVIQ
TyP8D2cD7NOlO_csKlDl8AAOQMYjriOZ2ASFHqEkOh7K_u1doGjuaI/CIRCUITS/Miscel
laneous%20Circuits/servo%20E-Stop%20Circuit.pdf


First, don't know how, but that whole link was clickable. Well
done !

Second, there is no reason why not.

the load. (Resistor) is designed to drain the caps in a controlled
manner.

An option is to use a lightbulb. just your ordinary 100 watt house
light bulbs instead of the resistor.

When the bulb goes across the line, it will light, then dim, then
just act as a resistor.

must be an incandescent. not a compact flourescent.

You can substitue other resistors as well, the larger, the slower.
I have a 100 ohm on mine. got it from surplus.



Dave