Z-brake on OAK
Posted: Thu Nov 17, 2022 11:58 am
Is there a provision for the Z-axis brake control or should I control the brake with the drive enable signal?
Many -- but not all -- Oak Mill PLC programs use OUT9 for Z axis brake release.
In most, it simply echoes the CNC12 drive enable output.
If you are using drives such as Yaskawa Sigma or Delta ASDA, which can provide a brake-release request to pin 17 of the Oak axis header (yellow wire in factory cables), then you can make your PLC program release the brake in response to "!Axis3StatusBRAKE" instead, so the brake is released whenever the drive says it is enabled.
All that said, if your drives have provision for switching an external circuit in response to their enabled state, then you could just as well use that, and save a PLC output.