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[Nr1madman]

Where did you find that because I'm sure that's one I've drawn up in the past for someone or modified version of it.! . . . . .Not bothered that you have it just curious where or how it got there.!

Just wanted to ask, since it might be your schematic.
Why does the enable signal go through two relays? The coil of the enable relay is driven through master relay.. Why not take the enable signal straight to the master relay? ( I've done this temporarily now)

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[JAZZCNC]

Just wanted to ask, since it might be your schematic.
Why does the enable signal go through two relays? The coil of the enable relay is driven through master relay.. Why not take the enable signal straight to the master relay? ( I've done this temporarily now)

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In all honesty I don't know. It's not something I would normaly do so maybe the OP added it. You certainly will be fine running it thru master relay.

The reason I think it's mine is because there are parts of it like the master relay which I drew and recognise. if you notice there are 6 contacts but it states 4PDT. However there are bits I don't recognise and wouldn't use, like that enable relay, so maybe I've helped someone with basic setup which I often do then they have added to it.?

[Nr1madman]

In all honesty I don't know. It's not something I would normaly do so maybe the OP added it. You certainly will be fine running it thru master relay.

The reason I think it's mine is because there are parts of it like the master relay which I drew and recognise. if you notice there are 6 contacts but it states 4PDT. However there are bits I don't recognise and wouldn't use, like that enable relay, so maybe I've helped someone with basic setup which I often do then they have added to it.?

Uhu!

Just got to thinking about enable.
Doesn't do very much to have it through master relay as the e stop already is in that loop.
Estop would cut power to drives so no point in cutting enable as well?

Will remove it :)

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[JAZZCNC]

100886Just got to thinking about enable.
Doesn't do very much to have it through master relay as the e stop already is in that loop.
Estop would cut power to drives so no point in cutting enable as well?

Will remove it :)

To be honest I never use the enable on steppers unless I want to keep holding torque on motors. For instance in Limit situation
Limits are not an emergency situation so no reason to kill power to the drives but sometimes, like with a heavy Z axis, you will want to keep holding torque.
In this case I'd use the Enable in series with Limits.

Otherwise, I just don't use it because of not much point with steppers.