On Thu, 7 Feb 2019, Gene Heskett wrote:
Date: Thu, 7 Feb 2019 19:56:20 -0500 From: Gene Heskett <ghesk...@shentel.net> Reply-To: EMC developers <emc-developers@lists.sourceforge.net> To: emc-developers@lists.sourceforge.net Subject: Re: [Emc-developers] 7i76 vs spinout signalOn Thursday 07 February 2019 19:41:20 Peter C. Wallace wrote:Yes its fixable just needs a TLP127 OPTO and careful work with a SMT hot air gun...And if you do it? How much? I have the hot air tools, but the hands at 84 are getting a little shaky for that sort of work. As I am learning in doing this project.
Just send it back And I'll fix it
Thanks Peter.feed 5 volts regulated to spindir+. wire internal to the interface box Feed interface boxes +12 unswitched power over the cable to +12 volt Feed regulated 12 volts to spinena+, Third wire Feed spinena- to servo enable on pin 5. Find pwmgen-01.pulse to PWM + on servo pin-1Feed a signal from the Sainsmart's pwm-1-output to the pwm+ at pin1 on the servo is the 5th wire and the connector is full. Once thats done, take 3/8" off the bottom of the swarf shield over the x-home-switch, which will allow that to come back over the top of the y motor, giving me back a sorely needed additional inch or more of y motion. The table was coming forward but this swarf shield was too long and was hitting the motor mount. If I clear that, I gain nearly 1.5" of y motion. When I put that bellows cover on, I was far more concerned with keeping swarf out of the y screw when I built it 4 years ago. Now, a question for Jon: Normally that 12 volts to the logic on pin 6 will be present anytime the interfaces line cord is plugged in, and which I intend eventually to plug into the power strip that feeds the rest of the motor power box. So it will come on with all the stepper drivers, but spindle power is soft started by enabling the machine from F2, takes 3 seconds to get full power. And I don't trip a 30 amp breaker charging the supplies caps. But is it safe to apply the high voltage motor power to the pwm-servo amp IF for some reason the interface is powerless and its 12 volt supply is off. This will put full motor power at pins-1-2, with no logic power on pin 6. Is that safe, or will it let some smoke out and kill all the local kittens? I could rig a relay, or better yet, move the SSR + terminals to the 12 volt supply, better yet disable that in hal if the 12 volts isn't there by changing the sserial com mode so it will send an a/d output back to lcnc. Thats slower of course but I'll check it out. Thanks Jon.Cheers, Gene Heskett -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) Genes Web page <http://geneslinuxbox.net:6309/gene> _______________________________________________ Emc-developers mailing list Emc-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-developersPeter Wallace Mesa Electronics (\__/) (='.'=) This is Bunny. Copy and paste bunny into your (")_(") signature to help him gain world domination. _______________________________________________ Emc-developers mailing list Emc-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-developersCheers, Gene Heskett -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) Genes Web page <http://geneslinuxbox.net:6309/gene> _______________________________________________ Emc-developers mailing list Emc-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-developers
Peter Wallace
Mesa Electronics
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