On 01/17/2015 09:42 AM, Pete Matos wrote: > Mark, There is a servo enable button but it basically enables the > whole system. Not sure why anyone would want to have manual control > when a CNC mill is pretty much like a manual mill with accurate DRO's > and power feeds on all axes when in operation.
... snip I think mark may have cranks on his mill that he wants to use in manual mode. A setup that just reads the axis encoders and controls the VFD might be the goal. This may be close: http://www.wallacecompany.com/machine_shop/EMC2/dro_vfd/ (older) http://www.wallacecompany.com/machine_shop/LinuxCNC/gvcpDRO/ (newer but w/o VFD) I'm with Pete on using the e-stop only for e-stop features. Taking AXIS out of e-stop should allow you to turn the machine on and allow enabling enabling hardware. I haven't played with this, but on my mill the PC is powered separately so I can turn it on any time. The e-stop turns the mains relay which turns on and enables the rest of the machine. I think this is blowing out my old stepper drivers because as they are powering up they are also enabling causing an unstable state. It may be better to have the e-stop button enable the power button (which AXIS does already), the power button should power up the machine, then allow enabling or invoke an enable sequence. A post-gui hal file may be needed for this. http://linuxcnc.org/docs/html/config/ini_config.html#_hal_section_a_id_sub_hal_section_a Thinking out loud. LinuxCNC is part of the e-stop system. It should act like an e-stop button if it detects a fault, or it should detect an e-stop so it can stop motion. LinuxCNC should not be a centralized e-stop controller, but a peer to any other e-stop source such as an e-stop button, or VFD or other. For example, if a VFD detects a fault it should activate its fault relay which is connected to the e-stop loop. LinuxCNC will see the e-stop signal and react appropriately. Now I just need to take the time out to try to put it into practice. -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ ------------------------------------------------------------------------------ New Year. New Location. New Benefits. New Data Center in Ashburn, VA. GigeNET is offering a free month of service with a new server in Ashburn. Choose from 2 high performing configs, both with 100TB of bandwidth. Higher redundancy.Lower latency.Increased capacity.Completely compliant. http://p.sf.net/sfu/gigenet _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
