Temperamental spindle

[Clive S]

Clive, thanks so much for the detailed reply. I tried what you said, the vfd tried to accelerate up presumably too fast and makes the distinct click of a circuit breaker or similar, presumably because it misses the speed, however, as I power it down and a second click is heard as the vfd releases the spindle very briefly spins. I'm not sure where to go from here.
Thanks again for the reply Clive, it's much appreciated

So if I understand what you are saying. With the FOR and DCM (without the original wires connected) the spindle powered up, If then you remove the link the spindle should stop. If that is the case then check the original cables from the FOR and DCM back to the BOB and makes sure the connections are secure. A picture of the bob might help

[mark84]

So if I understand what you are saying. With the FOR and DCM (without the original wires connected) the spindle powered up, If then you remove the link the spindle should stop. If that is the case then check the original cables from the FOR and DCM back to the BOB and makes sure the connections are secure. A picture of the bob might help

Hi Clive,
I can't actually locate the breakout board, I've taken a pic of the whole cabinet, if you could spot it that'd be great!! Sorry about the bother.

[Clive S]

Ok I think that the two cables that go to the vfd that control the spindle stop/start are the one's that I have put a red ring around.

Make a note of which terminals they are connected to. Then disconnect them and check them for continuity to the vfd FOR/DCM if necessary remake the connections.

I have never used that controller but I can see Dean's influence in there .

[mark84]

Ok I think that the two cables that go to the vfd that control the spindle stop/start are the one's that I have put a red ring around.

Make a note of which terminals they are connected to. Then disconnect them and check them for continuity to the vfd FOR/DCM if necessary remake the connections.

I have never used that controller but I can see Dean's influence in there .

Thanks Clive, i'll check it out when I'm home later :D Your help is very appreciated.
Any idea why Dean isn't around by the way, I notice his account hasn't been used in months? Hopefully he is well.

[mark84]

I couldn't find any issues with the wiring, though I've taken the connections out and cleaned them before tightening up again, and it's working, I'm unsure if that's just coincidental but at least it's ok for now.
If the problem keeps happening could I move the connection to the next port across?
Thanks for your help Clive :)

[Clive S]

I couldn't find any issues with the wiring, though I've taken the connections out and cleaned them before tightening up again, and it's working, I'm unsure if that's just coincidental but at least it's ok for now.
If the problem keeps happening could I move the connection to the next port across?
Thanks for your help Clive :)

Mark Not sure what you mean by "next port across" if you mean the next terminal I would have to look into the manual as I am not familiar with he CS labs board. Let us know if it has been cured after a few hour of use.

[routercnc]

Clive
I've just read post #3 and to me it does not sound like joining FOR and DCM is running the spindle all the time. Have a read and see if you agree.

Mark,
When you connected FOR and DCM the spindle briefly accelerated then cut out. It remained stationary until you disconnected FOR and DCM at which point nothing happened until the electronics had 'spooled down' to a low rpm at which point the spindle burst into life and tracked the speed down to zero. As if there is a dead spot above a very low rpm at which the spindle will not turn. Is this what you observed?

If I got this wrong please carry on. If not suggests VFD is faulty or has wrong settings?