Pages: [1]   Go Down
Author Topic: Driving a step motor driver...  (Read 374 times)
0 Members and 1 Guest are viewing this topic.
Offline Offline
Newbie
*
Karma: 0
Posts: 2
View Profile
 Bigger Bigger  Smaller Smaller  Reset Reset

Hi

I have old stepper motors and drivers for them. I cant find actual datasheet for the driver, but it seems that the drivers are similar to these: http://docs-europe.electrocomponents.com/webdocs/001c/0900766b8001c0a0.pdf

Before the controllers were connected such, that pins 23 and 24 are used to drive the motors. Now the simple question is, that how the drivers are used (with arduino)?

According to figure 2, I just go to nearest electronics shop and buy 6 optocouplers (or 3 dual channel) and connect them to drivers and Arduino, but how?



Logged

Massachusetts, USA
Offline Offline
Tesla Member
***
Karma: 180
Posts: 8103
View Profile
 Bigger Bigger  Smaller Smaller  Reset Reset

Your board seems to use 12v logic inputs so I don't think you can connect it directly to an Arduino.
Logged

Send Bitcoin tips to: 1L3CTDoTgrXNA5WyF77uWqt4gUdye9mezN
Send Litecoin tips to : LVtpaq6JgJAZwvnVq3ftVeHafWkcpmuR1e

0
Offline Offline
Shannon Member
****
Karma: 162
Posts: 10496
Arduino rocks
View Profile
 Bigger Bigger  Smaller Smaller  Reset Reset

It seems to suggest open-collector drivers would be OK (ie it has internal 12V pull-ups) - so an open collector or open-drain buffer might be another solution.
Logged

[ I won't respond to messages, use the forum please ]

Offline Offline
Newbie
*
Karma: 0
Posts: 2
View Profile
 Bigger Bigger  Smaller Smaller  Reset Reset

So just transistors would be OK? And I will connect them like:


And the "internal pull-ups" means that I don't have to use any resistors etc?

Is e.g. this ok?
http://www.datasheetcatalog.org/datasheet/fairchild/BC547B.pdf
« Last Edit: February 14, 2012, 03:42:07 am by neliseiska » Logged

Pages: [1]   Go Up
Jump to: