[Sin984]

Hi Guys, I am stuck trying to get my TB 6560 controller board working with my 3x Nema 23's

When starting up the TB6560 Without the computer turned on, they were nice, quiet and ready to go.

But when powered the Controller board with my computer on and plugged in via LPT, the motors would make a bad buzzing/grinding sound.

It took a while with my limited knowledge, but I found out the motors were moving and checked voltage across the + - to find out they were getting between 0.5 and 3-ish volts, on both the turn and step phases at the same time (on all 3 motors at the same time) :-s.

I haven't had the motors moving properly yet.
Could it be the LPT printer cable?


Anyone else had the same problem?

Cheers.
-James.


(Edit: It might be that the PSU sends power to the motors and the LPT sends signal usually, maybe.
But the LPT is sending power too)

[jschmitt]

Are you using a laptop? does the board work with lower voltage signal from the laptop LPT . check printer cable with ohm meter or some continuity tester. Make sure all pins are connected straight through: pin 1 - pin 1, pin 2 - pin 2, etc.

[James Newton]

"my TB 6560 controller board "

That's the problem right there. Get a better driver board.

[Azalin]

I have a 4 axis TB6560 board. I like it actually. It works nice with proper cooling (had to put an extra fan to the regulator).



Sent from my GT-I9300 using Tapatalk 2

[James Newton]

It will randomly fail on power up at some (unknown) time in the future. The chip was never designed to be used in this environment.

[Azalin]

You are right. It will fail eventually.

[dram]

Q. It is a 3 axis or more, TB6560.?
Cheers,
Mark Needham
PS. I know it is a silly Q. Tell me to pull me head in, if you want to..!

[Sin984]

I am very sorry guys, I had to move house shortly after the post and with it all, I forgot which forum I had posted this in.
Finally found it.

I am running an old IBM brick (desktop) with 32 bit windows 7.

I found out the problem was that it was sending constant voltage to more than half of lpt pins at 4.5v, the motors were trying to turn in both directions and step in both too. (wasn't pretty)
I found that out by hooking up a multimeter into each pin on the printer port on the computer.

Are they supposed to be sending constant 4.5 volts to that many pins at the same time (maybe there's something in the bios I have to turn off, to stop it sending power to half the pins)

It's a 3 axis Mark, thanks.

Sorry for the late reply.

[Sin984]

I have the computer set up again.
I haven't plugged it into the controlled board, I am just getting the voltages off the LPT port from the computer using a multimeter.
Here it is when I boot up, and also when I have Mach 3 running.

http://www.cnczone.com/forums/attach...d=294070&stc=1

The problem I am having now is that when I operate any axis, there is no voltage increase to the pins (Eg. X-Axis is sent to pins 3 and 5) when I hold down the direction and check with a multimeter at the same time.

Also, if someone knows, are these voltages correct?

Thank you.


--------------
Edit.

So I have some progress,
In the 'Output Signals' I have enabled 'Digit Trig' and 'Enable 1' and set the values to '1'.
2 of the motors are now making noise, but not turning at all.
Will keep you guys posted.

-----------------------------
Edit:
Got 1 spinning, but only in step mode I think, not in jog mode. and that is pretty erratic.

[jschmitt]

I have the computer set up again.
I haven't plugged it into the controlled board, I am just getting the voltages off the LPT port from the computer using a multimeter.
Here it is when I boot up, and also when I have Mach 3 running.

[IMG]http://www.cnczone.com/forums/attachment.php


attachmentid=294070&stc=1[/IMG]

The problem I am having now is that when I operate any axis, there is no voltage increase to the pins (Eg. X-Axis is sent to pins 3 and 5) when I hold down the direction and check with a multimeter at the same time.

Also, if someone knows, are these voltages correct?

Thank you.


--------------
Edit.

So I have some progress,
In the 'Output Signals' I have enabled 'Digit Trig' and 'Enable 1' and set the values to '1'.
2 of the motors are now making noise, but not turning at all.
Will keep you guys posted.

-----------------------------
Edit:
Got 1 spinning, but only in step mode I think, not in jog mode. and that is pretty erratic.

the multimeter probably has some dampening so it is hard to see the pins changing state.

I meant for you to check the printer cable with an ohmmeter. not all cables have a wire for each pin, or are staight through.

one other thing do not disconect the motor from the drive when powered up.you can brick the drive.