Re: [Emc-users] Torque control M CODE
Hi Is it possible to make create M code that corresponds to toque of the AC servomotor? Units of M300, for example, will be N*M/Lb*f. At the beginning of program should be place to declare that M300 less than 30lb*f (for example), and if it exceed than program switch to M0 program Stop. if you have torque mode drives or the servo drive can communicate the torque to EMC some other way then it's easy to set up a comparator in HAL that triggers E-stop on over-torque. The threshold could be set by a pyVCP slider/number or perhaps an M-code as you suggest. AW - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Torque control M CODE
On Tue, 3 Jun 2008, Anders Wallin wrote: Date: Tue, 03 Jun 2008 20:10:31 +0300 From: Anders Wallin [EMAIL PROTECTED] Reply-To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net Subject: Re: [Emc-users] Torque control M CODE Hi Is it possible to make create M code that corresponds to toque of the AC servomotor? Units of M300, for example, will be N*M/Lb*f. At the beginning of program should be place to declare that M300 less than 30lb*f (for example), and if it exceed than program switch to M0 program Stop. if you have torque mode drives or the servo drive can communicate the torque to EMC some other way then it's easy to set up a comparator in HAL that triggers E-stop on over-torque. The threshold could be set by a pyVCP slider/number or perhaps an M-code as you suggest. AW Even with bare HBridge type drives, A torque estimate can be derived from the PID output minus the FF1 term (assuming a properly tuned system). In any case a low pass filter may be required on the PID output before its applied to a comparator, as the noise from the derivative term may cause false triggers. Peter Wallace Mesa Electronics (\__/) (='.'=) This is Bunny. Copy and paste bunny into your ()_() signature to help him gain world domination. - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] Torque control M CODE
Hi Is it possible to make create M code that corresponds to toque of the AC servomotor? Units of M300, for example, will be N*M/Lb*f. At the beginning of program should be place to declare that M300 less than 30lb*f (for example), and if it exceed than program switch to M0 program Stop. That will reduce harm of machine crash and can prevent break of tool that lost cutting edge. Aram - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
