Re: [Emc-users] Wiring Step Dir on KM5056E
It's a good idea to create a drawing like the one in this link. It shows how to connect a Breakout Board to the system.https://www.automationtechnologiesinc.com/products-page/featured-cnc-products/kl-5056e-digital-stepper-driverThe stepper drivers tend to have opto inputs and can be wired to open collector or pnp sourcing transistors.JohnSent from my Samsung S10 Original message From: Alan Condit via Emc-users Date: 2023-07-03 11:28 a.m. (GMT-08:00) To: EMC-Users Cc: Alan Condit Subject: [Emc-users] Wiring Step Dir on KM5056E I am in the process of wiring up a new controller for RPi4 using 7c81 and 7i76. In the process of doing so, I discovered that I had wired my controller for my PCBMill with a 7i76E Step+ to KM5056E Pulse-, Step- to KM5056E Pulse+, Dir+ to KM5056E Dir-, and Dir- to KM5056 Dir+.It seems to run fine but, if I correct the connections Step+ to Pulse+, Step- to Pulse-, Dir+ to Dir+ and Dir- to Dir- what will happen. I don’t really want to break something that works.Thanks in Advance,Alan___Emc-users mailing listEmc-users@lists.sourceforge.nethttps://lists.sourceforge.net/lists/listinfo/emc-users ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Wiring Step Dir on KM5056E
On Mon, 3 Jul 2023 at 21:25, condit.alan--- via Emc-users wrote: > > I had to invert the direction on all of my axises to get it working like it > used to. Swapping the DIR wires on a bipolar setup is a reasonable way to invert an axis. But it's possibly not idea for the step pins as the drivers are likely to be expecting step to be shorter than space. As long as your step time exceeds the minimum space time, though, it is unlikely to matter. -- atp "A motorcycle is a bicycle with a pandemonium attachment and is designed for the especial use of mechanical geniuses, daredevils and lunatics." — George Fitch, Atlanta Constitution Newspaper, 1912 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Wiring Step Dir on KM5056E
Thanks Peter, I had to invert the direction on all of my axises to get it working like it used to. Now I just need to figure out if I was moving them in the correct directions or if I had just gotten used to them being wrong. Alan Sent from my iPad > On Jul 3, 2023, at 2:13 PM, Peter Wallace wrote: > On Mon, 3 Jul 2023, Alan Condit via Emc-users wrote: > >> Date: Mon, 3 Jul 2023 13:25:29 -0500 >> From: Alan Condit via Emc-users >> To: EMC-Users >> Cc: Alan Condit >> Subject: [Emc-users] Wiring Step Dir on KM5056E >> I am in the process of wiring up a new controller for RPi4 using 7c81 and >> 7i76. In the process of doing so, I discovered that I had wired my >> controller for my PCBMill with a 7i76E Step+ to KM5056E Pulse-, Step- to >> KM5056E Pulse+, Dir+ to KM5056E Dir-, and Dir- to KM5056 Dir+. >> It seems to run fine but, if I correct the connections Step+ to Pulse+, >> Step- to Pulse-, Dir+ to Dir+ and Dir- to Dir- what will happen. I donÿÿt >> really want to break something that works. >> >> Thanks in Advance, >> Alan >> >> >> ___ >> Emc-users mailing list >> Emc-users@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/emc-users > > > If it works now and the timings were correct, > it should make no difference. > > You would end up with longer active step pulse times > with inverted step polarity, though you may violate > the direction hold time if the hold time is set short > relative to the step pulse length. > > Peter Wallace > Mesa Electronics ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Wiring Step Dir on KM5056E
On Mon, 3 Jul 2023, Alan Condit via Emc-users wrote: Date: Mon, 3 Jul 2023 13:25:29 -0500 From: Alan Condit via Emc-users To: EMC-Users Cc: Alan Condit Subject: [Emc-users] Wiring Step Dir on KM5056E I am in the process of wiring up a new controller for RPi4 using 7c81 and 7i76. In the process of doing so, I discovered that I had wired my controller for my PCBMill with a 7i76E Step+ to KM5056E Pulse-, Step- to KM5056E Pulse+, Dir+ to KM5056E Dir-, and Dir- to KM5056 Dir+. It seems to run fine but, if I correct the connections Step+ to Pulse+, Step- to Pulse-, Dir+ to Dir+ and Dir- to Dir- what will happen. I don??t really want to break something that works. Thanks in Advance, Alan ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users If it works now and the timings were correct, it should make no difference. You would end up with longer active step pulse times with inverted step polarity, though you may violate the direction hold time if the hold time is set short relative to the step pulse length. Peter Wallace Mesa Electronics___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] Wiring Step Dir on KM5056E
I am in the process of wiring up a new controller for RPi4 using 7c81 and 7i76. In the process of doing so, I discovered that I had wired my controller for my PCBMill with a 7i76E Step+ to KM5056E Pulse-, Step- to KM5056E Pulse+, Dir+ to KM5056E Dir-, and Dir- to KM5056 Dir+. It seems to run fine but, if I correct the connections Step+ to Pulse+, Step- to Pulse-, Dir+ to Dir+ and Dir- to Dir- what will happen. I don’t really want to break something that works. Thanks in Advance, Alan ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
