Hi have installed 3 axis TB6560
All seems OK BUT when I power up the TB6560 controller the spindle starts immediately even if PC is off line.
Then when I run Mach 3 Gcode. Spindle positions OK ...plunges to begin cutting. ...then it stops turning.
Any idea please ?
Check your board at what pin is the output to the spindle, mach 3 settings, ports, output signals, find the output pin number and tick or untick "active low"
So swap the relay contact to NO and you should be good to go. You won't need to change the pin active state in outputs. What Silyavski suggested would work but it's not correct as the spindle shouldn't start when board is powered. Again VERY DANGEROUS and I would look at how you have wired regards safety and E-stop etc.
Last edited by JAZZCNC; 28-09-2014 at 08:49 AM.
Thanks for the replies. Seems because of spindle voltage I need to add a relay. It's an extra to the package I bought.
There's a load of similar TB6560 boards but one on Ali Express said this;
"Relay spindle interface - Outputs Max. 36V 7.5A for spindle motors or coolant pump (only one device can be powered by this output!) "
It already had a relay on board but if you say it also needs another external relay then that's fine but like JAZZCNC said if you are using the wrong terminals i.e. NC instead of NO you will maybe have the same problem once it's connected up.Spelling mistakes are not intentional, I only seem to see them some time after I've posted
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