Re: [Emc-users] minimum spindle speed
On 22 Jun 2015, at 18:48, Tom Easterday tom-...@bgp.nu wrote: How do I set the minimum spindle speed so that the user can’t command a speed below 275rpm? It's probably best done in the VFD but the HAL deadband component is an option. -- Monitor 25 network devices or servers for free with OpManager! OpManager is web-based network management software that monitors network devices and physical virtual servers, alerts via email sms for fault. Monitor 25 devices for free with no restriction. Download now http://ad.doubleclick.net/ddm/clk/292181274;119417398;o ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] minimum spindle speed
If spindle motor is an asynchronous motor and simple voltage frequency control. Are your sure voltage frequency characteristics are correctly set? If motor get hot on low RPM even then not loaded you will almost certainly use to high voltage. Nicklas Karlsson On Mon, 22 Jun 2015 13:48:23 -0400 Tom Easterday tom-...@bgp.nu wrote: I am controlling a spindle motor with a VFD commanded by modbus. My current speed range is 0-3500 rpm. If I run the spindle below 275 rpm the current spikes and triggers the VFD’s protection shutoff. How do I set the minimum spindle speed so that the user can’t command a speed below 275rpm? -Tom -- Monitor 25 network devices or servers for free with OpManager! OpManager is web-based network management software that monitors network devices and physical virtual servers, alerts via email sms for fault. Monitor 25 devices for free with no restriction. Download now http://ad.doubleclick.net/ddm/clk/292181274;119417398;o ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Monitor 25 network devices or servers for free with OpManager! OpManager is web-based network management software that monitors network devices and physical virtual servers, alerts via email sms for fault. Monitor 25 devices for free with no restriction. Download now http://ad.doubleclick.net/ddm/clk/292181274;119417398;o ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] minimum spindle speed
Hi Tom. Have you tried to configure the VFD in Sensorless Vector Mode ? Please can you detail the brand and code manufacturer of your VFD ? Alex On Tue, Jun 23, 2015 at 9:44 AM, Karlsson Wang nicklas.karls...@karlssonwang.se wrote: If spindle motor is an asynchronous motor and simple voltage frequency control. Are your sure voltage frequency characteristics are correctly set? If motor get hot on low RPM even then not loaded you will almost certainly use to high voltage. Nicklas Karlsson On Mon, 22 Jun 2015 13:48:23 -0400 Tom Easterday tom-...@bgp.nu wrote: I am controlling a spindle motor with a VFD commanded by modbus. My current speed range is 0-3500 rpm. If I run the spindle below 275 rpm the current spikes and triggers the VFD’s protection shutoff. How do I set the minimum spindle speed so that the user can’t command a speed below 275rpm? -Tom -- Monitor 25 network devices or servers for free with OpManager! OpManager is web-based network management software that monitors network devices and physical virtual servers, alerts via email sms for fault. Monitor 25 devices for free with no restriction. Download now http://ad.doubleclick.net/ddm/clk/292181274;119417398;o ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Monitor 25 network devices or servers for free with OpManager! OpManager is web-based network management software that monitors network devices and physical virtual servers, alerts via email sms for fault. Monitor 25 devices for free with no restriction. Download now http://ad.doubleclick.net/ddm/clk/292181274;119417398;o ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Monitor 25 network devices or servers for free with OpManager! OpManager is web-based network management software that monitors network devices and physical virtual servers, alerts via email sms for fault. Monitor 25 devices for free with no restriction. Download now http://ad.doubleclick.net/ddm/clk/292181274;119417398;o ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] minimum spindle speed
On 6/22/15 11:48 AM, Tom Easterday wrote: I am controlling a spindle motor with a VFD commanded by modbus. My current speed range is 0-3500 rpm. If I run the spindle below 275 rpm the current spikes and triggers the VFD’s protection shutoff. How do I set the minimum spindle speed so that the user can’t command a speed below 275rpm? -Tom There's not a way to limit what values are accepted by G-code S-word commands. You could make a small HAL circuit that prevents commands from being sent to the VFD is the commanded speed is too low. Something like this logic maybe: vfd.enable = motion.spindle-on (motion.spindle-speed-out 275) -- Sebastian Kuzminsky -- Monitor 25 network devices or servers for free with OpManager! OpManager is web-based network management software that monitors network devices and physical virtual servers, alerts via email sms for fault. Monitor 25 devices for free with no restriction. Download now http://ad.doubleclick.net/ddm/clk/292181274;119417398;o ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] minimum spindle speed
On 22/06/15 18:48, Tom Easterday wrote: I am controlling a spindle motor with a VFD commanded by modbus. Which VFD? The ones I use have many settings, and adjusting the speed range and acceleration up to speed are all part of them. -- Lester Caine - G8HFL - Contact - http://lsces.co.uk/wiki/?page=contact L.S.Caine Electronic Services - http://lsces.co.uk EnquirySolve - http://enquirysolve.com/ Model Engineers Digital Workshop - http://medw.co.uk Rainbow Digital Media - http://rainbowdigitalmedia.co.uk -- Monitor 25 network devices or servers for free with OpManager! OpManager is web-based network management software that monitors network devices and physical virtual servers, alerts via email sms for fault. Monitor 25 devices for free with no restriction. Download now http://ad.doubleclick.net/ddm/clk/292181274;119417398;o ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] minimum spindle speed
I am controlling a spindle motor with a VFD commanded by modbus. My current speed range is 0-3500 rpm. If I run the spindle below 275 rpm the current spikes and triggers the VFD’s protection shutoff. How do I set the minimum spindle speed so that the user can’t command a speed below 275rpm? -Tom -- Monitor 25 network devices or servers for free with OpManager! OpManager is web-based network management software that monitors network devices and physical virtual servers, alerts via email sms for fault. Monitor 25 devices for free with no restriction. Download now http://ad.doubleclick.net/ddm/clk/292181274;119417398;o ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] minimum spindle speed
Look to see if the VFD has a minimum speed command setting. N. Christopher Perry On Jun 22, 2015, at 1:48 PM, Tom Easterday tom-...@bgp.nu wrote: I am controlling a spindle motor with a VFD commanded by modbus. My current speed range is 0-3500 rpm. If I run the spindle below 275 rpm the current spikes and triggers the VFD’s protection shutoff. How do I set the minimum spindle speed so that the user can’t command a speed below 275rpm? -Tom -- Monitor 25 network devices or servers for free with OpManager! OpManager is web-based network management software that monitors network devices and physical virtual servers, alerts via email sms for fault. Monitor 25 devices for free with no restriction. Download now http://ad.doubleclick.net/ddm/clk/292181274;119417398;o ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Monitor 25 network devices or servers for free with OpManager! OpManager is web-based network management software that monitors network devices and physical virtual servers, alerts via email sms for fault. Monitor 25 devices for free with no restriction. Download now http://ad.doubleclick.net/ddm/clk/292181274;119417398;o ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
