[Emc-users] What is the life of a rotary encoder?
Hi, I have a 1988 First CNC mill that I am considering retrofitting to accept LinuxCNC. The motors are Fanuc red cap with 1 ppr. How long will these encoders last? They are all ready 29 years old. I have other machines with dying encoders and linear scales and it usually starts with the marker pulse. I just wonder if money is better spent on new normal encoders rather conversion systems to work with the old Fanuc stuff. That being said, sometimes the newer stuff is less durable than the old components. Thanks - Steve V -- Check out the vibrant tech community on one of the world's most engaging tech sites, SlashDot.org! http://sdm.link/slashdot ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] Voltage/Motor RPM Relationship with Brushless Drives
Hi: I have a CNC mill that I am considering replacing the control with LinuxCNC. The motors are the red cap Fanuc units. I have enquired on this mailing list about using the existing servo amps and motors. From all the replies and help (thank you very much) I haved concluded that a good solution for me is to remove the Fanuc encoders and amps and replace them with suitable units that can communicate on an industry standard format. To that end I am considering using some AMT31 programmable encoders by CUI (or other encoder suitable for 8 pole motors) and some BE40A8 AMC amps that I have sitting on my shelf. I am aware of the rpm/voltage relationship with brush DC motors. Generally, as the voltage rises the motor rpm increases a proportional amount. How does the voltage influence the performance of the brushless motor? The Fanuc motors are 5S models, 126 V (DC?), 5.8A stall. The BE40A8 have a maximum running voltage of 80 VDC. Will running the motors at the lower voltage result in dramatically reduced performance? Will it cause other electrical problems like an excessive rise in current demand by the motor? Thanks for your help - Steve V -- Check out the vibrant tech community on one of the world's most engaging tech sites, SlashDot.org! http://sdm.link/slashdot ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] Fanuc A06B-6058-H322 Servo Amp Part Number
On Sat, 17 Dec 2016 15:56:13 -0600 Jon Elson wrote: "Depending on the size of the motors, it may be possible to run the machine with the Pico Systems brushless PWM servo amp, it is good for up to 20 A peak. If you have the model of the motor, I can look that up." The motor "TYPE" is A06B-0134-B002, and "NO." is G-846379. 126 V, 8 poles, 5.8A at stall. "Another option is to use AMC servo amps with our PPMC analog interface system." Can you elaborate on the above? Thanks -- Developer Access Program for Intel Xeon Phi Processors Access to Intel Xeon Phi processor-based developer platforms. With one year of Intel Parallel Studio XE. Training and support from Colfax. Order your platform today.http://sdm.link/intel ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] Fanuc A06B-6058-H322 Servo Amp Part Number
I was able to retrieve the titled part number from the frame of the servo amp and it appears to be a version that is "difficult" to integrate with EMC2, as identified by the "6058" section of the number. What are my options for EMC2 if I want to use these Red Cap servo motors and the 6058 amps? Is there an "adapter" board or software that can be purchased to allow the integration? The machine I have is a First LC-CV305. It is basically a small bed mill with 24x12x15" XYZ travels with a mechanical variable speed drive. Thanks Steve -- Check out the vibrant tech community on one of the world's most engaging tech sites, SlashDot.org! http://sdm.link/slashdot ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] Red Cap Fanuc amp part number
I found a part number on the printed circuit board that has all 3 axis on it. Under the PCB are the amps for each motor. Is this the correct number to identify if the amps are "easily retrofitted" to EMC2: A16B-1000-0280/06A ? Steve V -- Developer Access Program for Intel Xeon Phi Processors Access to Intel Xeon Phi processor-based developer platforms. With one year of Intel Parallel Studio XE. Training and support from Colfax. Order your platform today.http://sdm.link/xeonphi ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] EMC2 & Fanuc Red Cap Servos
Hi, I posted the other day about using EMC2 with existing Fanuc servo and servo amps. The conclusion appears to be an adapter board, however, at the servo motor. Shouldn't the "conversion" be needed at the output of EMC2 into the servo amp? Also how do I get rid of the pesky "?" that show up at the end of every sentence when I post? -- Developer Access Program for Intel Xeon Phi Processors Access to Intel Xeon Phi processor-based developer platforms. With one year of Intel Parallel Studio XE. Training and support from Colfax. Order your platform today.http://sdm.link/xeonphi ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] Use Fanuc Servos & Amps with EMC2
Hi: Is there a simple solution that some one has developed allowing EMC2 to connect to the Fanuc drives and red cap motors? A MESA board or something like that that could be wired inbetween like a converter? I was looking through the achieves and noticed lots of issues but stopped after reading the 23rd entry of over 1200 due to brain overload. If I was understanding the notes correctly it seems like Fanuc has their proprietary communications system that isn't easy to interface to the standard +- 10 VDC signal with incremental encoder feed back. I am looking at a late 80's machine with an 0M control that could be ideal for an inexpensive retrofit if the motors and amps can remain. Thanks for your help inadvance. Best regards, Steve Van Der Loo -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] Step Direction for use on Servo Amps
Can the stepper motor 'step direction' output from EMC2 be used to run a servo based system that has step direction input amplifiers where the servo motor encoder feed back goes into the amp and not EMC2? I believe the Yaskawa Sigma II amps can run in this mode. My thought was to build a simpler system and avoid the additional motion control boards if the Yaskawa amps could connect directly to an isolator/break-out board from the parallel port. Or are these two completely different systems with only the step direction words in common? Thanks for your help Steve Van Der Loo Tube Gauge Inspection Fixtures Inc 420 Neptune Crescent London, ON N6M 1A1 -- Don't let slow site performance ruin your business. Deploy New Relic APM Deploy New Relic app performance management and know exactly what is happening inside your Ruby, Python, PHP, Java, and .NET app Try New Relic at no cost today and get our sweet Data Nerd shirt too! http://p.sf.net/sfu/newrelic-dev2dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
