Hi, I foolishly bought one of the 4-axis driver boards based on the TB6560 chip from China. I'm now on the third board having had to send two back as defective and now this third board is also defective however, I'm now so peed off with the whole thing that I decided I would try to either repair the board, or just use the working parts and supplement it with separate drivers. The fault is on the Y-axis driver which will only drive the motor at a pitifully slow speed as, at any other settings, the motor just sits and quivers. The board has four identical drivers on it, each optically buffered and consisting of a TB6560 chip and a handful of surface mount components and capacitors. Each output also has additional diodes to ground. Three of the drivers work fine, but not the Y-axis. I have changed the TB6560 chip for a new one but the problem still persists and so I guess the fault must be somewhere else. Does anyone have any experience with this chip or these driver board who could maybe point me in the right direction to find the fault? The strange thing is that all the boards have had a similar problem with the Y-axis ( the first board also had the same problem with the Z-axis ) and yet there doesn't appear to be any difference in the PC layout between the axes. This is the board http://tinyurl.com/2d6oph9 . I've learnt my lesson now, I'll not buy another board like this and definitely won't deal with this seller again as I went through quite a series of emails where they were trying to deny any responsibility for the faults. Thanks,
Ian ____________________ Ian W Wright Sheffield UK ------------------------------------------------------------------------------ _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
