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| raynerd:
Hi guys, hoping someone can help. I'm running a stepper motor on an expensive driver from an arduino by connected a pulse line to the step input and a direction line to the dir input and tying the common to the arduino ground- simples and it works!! Rather than waste an expensive 4.2a driver to run a 1a none essential project, I purchased a cheaper tb6560 driver without looking properly!! http://forum.hobbycomponents.com/viewtopic.php?f=39&t=1371#p2687 The input lines I believe are based on a pc breakout! I can't get my head around it... The inputs are Cw+ Cw- CLK+ CLK - En+ En- I'm not sure how to connect it despite some form of an example in the link above! I just have two wires, dir and pulse...where do I stick um' ?? :doh: Any help appreciated! |
| awemawson:
Presumably CLK is the 'Step', 'CW' is Clockwise so direction, and 'EN' is enable. But why a + and a - version of each? I doubt that they are balanced signals so >>maybe<< the - versions are the common rail ie ground. Alternatively they could all be opto-isolated and the + - refer to the anode and cathode of the input LED of the isolator? I would carefully trace the signals back from the green connector block - I bet they go to the ics next to it. Google the chip, download the data sheet, identify the pin they go to and you'll have your answer :thumbup: |
| John Rudd:
Chris, If you look at the example, the -ve connections are all communed up........ This gives Step, Direction and Enable as the three inputs with a common shared with them giving four wires in total.... As you only have step and direction, the enable needs pulling high, so connect to a 5v supply via 10k resistor (you could wire it via a switch to stop the stepper) |
| Bluechip:
There are opto-couplers on pic2, bottom right. Little black dogsnobbers above the red DIL-switches. One, the DIL-6, is a 4n35 ... :thumbup: http://www.farnell.com/datasheets/1693303.pdf The DIL-4 below it is almost certainly another, can't read what type it is . Dave BC |
| raynerd:
Cheers guys!!! So just to clarify: CLK to my step pulse line CK to my dir line En+ to +5v from arduino All the three opposite -ve pins join to a common ground between arduino grd and 12v motor supply gnd. May as well double check before I make it go pop! Thanks again. :mmr: |
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