Step1 stepper drive board from Conqueror Design

[pistolknight]

Hi John,

I would use a TB6560 but the problem I have is that the Conqueror card supplies the stepper drivers with a shared direction signal. I have no idea how I can use just the part of the signal that I need for my drive without buying their stepper card interface. Any ideas?
Best Regards
David

Hi Dave

If no one has a driver to sell and its going to be a while before
CDE can supply a replacement

a photo and data sheet of the faulty board would help
to identify the stepper driver IC's used to see if its realistic to repair it with minimal tools
for example

should be easy


(through hole IC's are easy but surface mount IC's are more of a problem as you may not want to buy the required tools for a one off repair)

one possibly is to use some thing like a THB6064 stepper driver module
avoiding the problem tb6560 drivers !!!!!

John

[john swift]

Hi Dave

without photos and the data sheet for the Conqueror driver board
I can't tell

not sure of the shared direction signal ?

should that be shared enable ?

the only time two drivers have a shared direction signal I know of
is when two drivers are connected to one axis
(provided the breakout board can supply enough current )

John

[pistolknight]

Hi John,
I've not managed to get pictures yet! Work is crazy right now. From what the blurb on the Conqueror Design website says, the drivers are interconnected with a ribbon cable and the direction signal form all the drivers is passed through one wire using a timing sequence. So, my issue is if I use a TB6600 which I have kicking around, how do I get it just the part of the signal intended for that driver?

David

[john swift]

Hi Dave

just looked at Conqueror Design website

if this is what you have


going by the width of the ribbon cable that is daisy chained between the driver boards

I expect all the step and direction signals go to each driver board

the pictures resolution is not good enough to see but I expect
each board has links to select the correct signals for that axis


John

[pistolknight]

Yeah that's what I have. According to the information in this link under step1(R4);

http://www.eaziform.co.uk/files/CNCComps.pdf

There is only one wire which contains all the direction signals but they are selected at the board. So if I substitute the driver then I somehow need the individual part of the direction signal for that driver

Any ideas?

David

[john swift]

Hi Dave

if I have read this correctly



it looks like for up to 4 drivers
you can have separate step & direction signals to each driver

for more axis they must multiplex the direction signals on pin 7
and store it the appropriate driver board until you need to change that axis direction

I would need to see the detailed data sheet for a stepper 1 driver board or
study a board to trace the direction signal path

I would expect the rest of the circuit to follow the data sheet for the stepper driver IC's used

John

[pistolknight]

I think I'll try wiring up the TB6600 using one of those pins as the direction and see if it works. I remember reading a paragraph in that manual about the timing signal settings but can't find it now