--- In DynoMotion@yahoogroups.com, Tom Kerekes wrote:
>
> Hi Kristoffer,
>
> If not too difficult maybe include one of each motor?  Send to my attention RMA#14
>
> Also please indicate which axis was acting bad and also which motor type was connected to which axis.
>
> Regards
> TK
>
>
>
>
> ________________________________
> From: chrismd500
> To: DynoMotion@yahoogroups.com
> Sent: Sunday, January 13, 2013 5:25 PM
> Subject: [DynoMotion] Re: Problems and problems...
>
>
>  
> Hi Tom,
>
> Ok, I'll send the boards to you guys. Actually I'll send all of them, remember that the first kstep the 'enable' is always on, maybe you can take a quick look at that too?
>
> From what I could see there was no contamination on the boards, some finger prints which i removed with some 91% rubbing alcohol and cotton swabs. I saw another post here or on CNCzone about someone that had contamination on the board, and after it was removed it worked again. I did look for that on my board but couldn't see any.
>
> No static electricity as far as I know. Yes, the enclosure is earth grounded. The jumpers are set to 2.5A, ML-ML, on all the channels. Using a 24V 15A regulated power supply. The motors are from Kelinginc.net, KL23H2100-50-4B (5A) and KL23H286-20-8B (2.8A).
>
> http://www.kelinginc.net/KL23H2100-50-4B.pdf
> http://www.kelinginc.net/KL23H286-20-8B.pdf
>
> Thanks,
> Kristoffer
>
> --- In DynoMotion@yahoogroups.com, Tom Kerekes wrote:
> >
> > Hi Kristoffer,
> >
> > It sounds like you have tried most everything.  If you disconnect everything from KFLOP and only apply +5V and the LEDs don't flash then the board is simply bad and not recoverable.  You can send the board to us and we will test it for you.
> >
> > A jammed stepper motor would not normally burn anything out.  Steppers don't really work like that.  So I'm not sure what is going on.
> >
> > Was there contamination on the board?  Static electricity?  What kind of motors do you have?  What do you have the current jumpers set at?  Is the enclosure earth grounded?
> >
> > Regards
> > TK
> >
> >
> >
> >
> > ________________________________
> > From: chrismd500
> > To: DynoMotion@yahoogroups.com
> > Sent: Sunday, January 13, 2013 2:56 PM
> > Subject: [DynoMotion] Problems and problems...
> >
> >
> >  
> > Ok so after months of absolutely no issues, the problems have now seemed to come all at once. This time just out of the blue. (I've installed limit switches and home switches on all my channels to avoid crashes (a lesson I learned the hard way 6 months ago) and it works brilliantly).
> >
> > Problem #1: For no apparent reason one of the channels (channel #1) on my newer Kstep (I have two Ksteps, the older one a channel got fried because a motor got jammed, but this time around there were no such incidents). From visual inspection the board looks great, no smell of burned electronics, and I believe the 3 other channels are working (did not get a chance to try them all... see problem #2).
> >
> > Problem #2: Also for no apparent reason the Kflop stopped working 30 min later. After trying to figure out what the problem was with the kstep by switching motors on different channels, then, as I put the USB back into the kflop, the KFlop LED's did not come on. So I tried a different USB port and the LED's came on, but as I unplugged it and plugged it back in to the same USB port the LED's did not come back on, and has never since. Switched USB cables, tried to use a different computer, tried to use the Recover in Kmotion (following the instructions) but just received "Communication Error with KMotion", I've tried to clean the board, and still.... nothing :( When I start Kmotion it says "KMotion present but not responding". All my stuff is in an enclosed case; kflop and kstep opto-islolated using a separate 5V power supply for the ksteps. From visual inspection the kflop looks very good as well.
> >
> > Suggestion?
> >
>

--- In DynoMotion@yahoogroups.com, "chrismd500" wrote:
>
> Tom,
>
> Sure, I'll include one of each motor as well. Send it tomorrow.
>
> Thank you.
>
> --- In DynoMotion@yahoogroups.com, Tom Kerekes wrote:
> >
> > Hi Kristoffer,
> >
> > If not too difficult maybe include one of each motor?  Send to my attention RMA#14
> >
> > Also please indicate which axis was acting bad and also which motor type was connected to which axis.
> >
> > Regards
> > TK
> >
> >
> >
> >
> > ________________________________
> > From: chrismd500
> > To: DynoMotion@yahoogroups.com
> > Sent: Sunday, January 13, 2013 5:25 PM
> > Subject: [DynoMotion] Re: Problems and problems...
> >
> >
> >  
> > Hi Tom,
> >
> > Ok, I'll send the boards to you guys. Actually I'll send all of them, remember that the first kstep the 'enable' is always on, maybe you can take a quick look at that too?
> >
> > From what I could see there was no contamination on the boards, some finger prints which i removed with some 91% rubbing alcohol and cotton swabs. I saw another post here or on CNCzone about someone that had contamination on the board, and after it was removed it worked again. I did look for that on my board but couldn't see any.
> >
> > No static electricity as far as I know. Yes, the enclosure is earth grounded. The jumpers are set to 2.5A, ML-ML, on all the channels. Using a 24V 15A regulated power supply. The motors are from Kelinginc.net, KL23H2100-50-4B (5A) and KL23H286-20-8B (2.8A).
> >
> > http://www.kelinginc.net/KL23H2100-50-4B.pdf
> > http://www.kelinginc.net/KL23H286-20-8B.pdf
> >
> > Thanks,
> > Kristoffer
> >
> > --- In DynoMotion@yahoogroups.com, Tom Kerekes wrote:
> > >
> > > Hi Kristoffer,
> > >
> > > It sounds like you have tried most everything.  If you disconnect everything from KFLOP and only apply +5V and the LEDs don't flash then the board is simply bad and not recoverable.  You can send the board to us and we will test it for you.
> > >
> > > A jammed stepper motor would not normally burn anything out.  Steppers don't really work like that.  So I'm not sure what is going on.
> > >
> > > Was there contamination on the board?  Static electricity?  What kind of motors do you have?  What do you have the current jumpers set at?  Is the enclosure earth grounded?
> > >
> > > Regards
> > > TK
> > >
> > >
> > >
> > >
> > > ________________________________
> > > From: chrismd500
> > > To: DynoMotion@yahoogroups.com
> > > Sent: Sunday, January 13, 2013 2:56 PM
> > > Subject: [DynoMotion] Problems and problems...
> > >
> > >
> > >  
> > > Ok so after months of absolutely no issues, the problems have now seemed to come all at once. This time just out of the blue. (I've installed limit switches and home switches on all my channels to avoid crashes (a lesson I learned the hard way 6 months ago) and it works brilliantly).
> > >
> > > Problem #1: For no apparent reason one of the channels (channel #1) on my newer Kstep (I have two Ksteps, the older one a channel got fried because a motor got jammed, but this time around there were no such incidents). From visual inspection the board looks great, no smell of burned electronics, and I believe the 3 other channels are working (did not get a chance to try them all... see problem #2).
> > >
> > > Problem #2: Also for no apparent reason the Kflop stopped working 30 min later. After trying to figure out what the problem was with the kstep by switching motors on different channels, then, as I put the USB back into the kflop, the KFlop LED's did not come on. So I tried a different USB port and the LED's came on, but as I unplugged it and plugged it back in to the same USB port the LED's did not come back on, and has never since. Switched USB cables, tried to use a different computer, tried to use the Recover in Kmotion (following the instructions) but just received "Communication Error with KMotion", I've tried to clean the board, and still.... nothing :( When I start Kmotion it says "KMotion present but not responding". All my stuff is in an enclosed case; kflop and kstep opto-islolated using a separate 5V power supply for the ksteps. From visual inspection the kflop looks very good as well.
> > >
> > > Suggestion?
> > >
> >
>

--- In DynoMotion@yahoogroups.com, "chrismd500" wrote:
>
> Tom,
> I shipped it this morning with USPS priority and you should have it Wednesday.
>
> On both of the ksteps you will see that I had to shorten and bend the JP31 JP32 pins due to a space issues in the enclosure. I also removed current setting pins on the defect channel on my older kstep to make sure I (or someone else) wouldn't accidentally try to use that channel again.
>
> I didn't check for contamination on the ksteps since the kflop stopped working before I got a chance to see if that could have caused the ch #1 defect. I sent them as-is.
>
> Thanks again!
>
> --- In DynoMotion@yahoogroups.com, "chrismd500" wrote:
> >
> > Tom,
> >
> > Sure, I'll include one of each motor as well. Send it tomorrow.
> >
> > Thank you.
> >
> > --- In DynoMotion@yahoogroups.com, Tom Kerekes wrote:
> > >
> > > Hi Kristoffer,
> > >
> > > If not too difficult maybe include one of each motor?  Send to my attention RMA#14
> > >
> > > Also please indicate which axis was acting bad and also which motor type was connected to which axis.
> > >
> > > Regards
> > > TK
> > >
> > >
> > >
> > >
> > > ________________________________
> > > From: chrismd500
> > > To: DynoMotion@yahoogroups.com
> > > Sent: Sunday, January 13, 2013 5:25 PM
> > > Subject: [DynoMotion] Re: Problems and problems...
> > >
> > >
> > >  
> > > Hi Tom,
> > >
> > > Ok, I'll send the boards to you guys. Actually I'll send all of them, remember that the first kstep the 'enable' is always on, maybe you can take a quick look at that too?
> > >
> > > From what I could see there was no contamination on the boards, some finger prints which i removed with some 91% rubbing alcohol and cotton swabs. I saw another post here or on CNCzone about someone that had contamination on the board, and after it was removed it worked again. I did look for that on my board but couldn't see any.
> > >
> > > No static electricity as far as I know. Yes, the enclosure is earth grounded. The jumpers are set to 2.5A, ML-ML, on all the channels. Using a 24V 15A regulated power supply. The motors are from Kelinginc.net, KL23H2100-50-4B (5A) and KL23H286-20-8B (2.8A).
> > >
> > > http://www.kelinginc.net/KL23H2100-50-4B.pdf
> > > http://www.kelinginc.net/KL23H286-20-8B.pdf
> > >
> > > Thanks,
> > > Kristoffer
> > >
> > > --- In DynoMotion@yahoogroups.com, Tom Kerekes wrote:
> > > >
> > > > Hi Kristoffer,
> > > >
> > > > It sounds like you have tried most everything.  If you disconnect everything from KFLOP and only apply +5V and the LEDs don't flash then the board is simply bad and not recoverable.  You can send the board to us and we will test it for you.
> > > >
> > > > A jammed stepper motor would not normally burn anything out.  Steppers don't really work like that.  So I'm not sure what is going on.
> > > >
> > > > Was there contamination on the board?  Static electricity?  What kind of motors do you have?  What do you have the current jumpers set at?  Is the enclosure earth grounded?
> > > >
> > > > Regards
> > > > TK
> > > >
> > > >
> > > >
> > > >
> > > > ________________________________
> > > > From: chrismd500
> > > > To: DynoMotion@yahoogroups.com
> > > > Sent: Sunday, January 13, 2013 2:56 PM
> > > > Subject: [DynoMotion] Problems and problems...
> > > >
> > > >
> > > >  
> > > > Ok so after months of absolutely no issues, the problems have now seemed to come all at once. This time just out of the blue. (I've installed limit switches and home switches on all my channels to avoid crashes (a lesson I learned the hard way 6 months ago) and it works brilliantly).
> > > >
> > > > Problem #1: For no apparent reason one of the channels (channel #1) on my newer Kstep (I have two Ksteps, the older one a channel got fried because a motor got jammed, but this time around there were no such incidents). From visual inspection the board looks great, no smell of burned electronics, and I believe the 3 other channels are working (did not get a chance to try them all... see problem #2).
> > > >
> > > > Problem #2: Also for no apparent reason the Kflop stopped working 30 min later. After trying to figure out what the problem was with the kstep by switching motors on different channels, then, as I put the USB back into the kflop, the KFlop LED's did not come on. So I tried a different USB port and the LED's came on, but as I unplugged it and plugged it back in to the same USB port the LED's did not come back on, and has never since. Switched USB cables, tried to use a different computer, tried to use the Recover in Kmotion (following the instructions) but just received "Communication Error with KMotion", I've tried to clean the board, and still.... nothing :( When I start Kmotion it says "KMotion present but not responding". All my stuff is in an enclosed case; kflop and kstep opto-islolated using a separate 5V power supply for the ksteps. From visual inspection the kflop looks very good as well.
> > > >
> > > > Suggestion?
> > > >
> > >
> >
>