Re: [Emc-users] Parallel port card that just works?
On Wed, 2011-08-17 at 19:48 -0700, doug metzler wrote: Ok, I'm getting back to this and here are the steps I've gone through. My lspci -v shows the following addresses for the parallel ports on the card: I/O ports at a400 [disabled] [size=8] I/O ports at a000 [disabled] [size=8] I/O ports at 9800 [disabled] [size=8] I/O ports at 9400 [disabled] [size=8] I did some initial messing around with trying to get the pendant to work, but then I decided to go back to basics, so I commented out everything about the MPG and simply changed the default parallel port that EMC talks to to each of the above addresses in turn. So the default was # loadrt hal_parport cfg=0x378 out which worked great I attached the parallel cable (turning the machine off each time) to the upper port (interesting note, when attaching the MPG to the upper port the LED on the MPG lit up, but on the lower port it did not) and went through each iteration of # loadrt hal_parport cfg=0xa400 out # loadrt hal_parport cfg=0xa000 out # loadrt hal_parport cfg=0x9800 out # loadrt hal_parport cfg=0x9400 out Each time firing up EMC and trying a manual move via the keyboard. Did you also add the hal_parport functions to a thread? (I forget this quite often) If not, to review, when you loadrt something, it loads the something module and makes it available for use, or actually makes the functions within the module available. A function can be run by assigning it to a thread. The command addf does this. The hal_parport has two functions, one to read inputs which usually should be early in the addf list, and the second writes the parport outputs, so should be close to the end of the list. Typically the input status is used to create a solution for the outputs, so the read command line needs to come before the write. One tricky bit is, if needed, the addf command can be appended with a 1 or -1. 1 overrides the normal as written command line order and puts the command at the end of the assigned thread, -1 puts the command at the front. I believe (and I could easily be wrong) if there is more than one line with 1 or -1, they get stacked at the end or beginning (nest) in the order that EMC2 sees them as the .ini and .hal files are loaded and parsed. So, if you see a sample .hal file with addf ... -1 you'll know what it means. Once the read and write functions are running in the proper threads, the HAL pins can be connected. Remember that the hal_parport ID starts with 0 and not 1. I think you could loadrt all of the addresses (0x0378, 0xA400, 0xA000...) and set up the five addf's and leave the pins unassigned or leave them in the default configuration. Actually, I seem to recall that EMC2 won't load if an address isn't a real base port register, so you my need to remove two addresses. My guess is that 0xA000 and 0x9400 are the the base registers, the other two are extended registers. Then use HALmeter or HALscope to monitor, let's say, the input pin that is connected to the encoder phase A. For example, if the pin is pin 10, open a HALmeter for each port on pin 10. When you turn the encoder, one of the HALmeters should wiggle with 0 and 1. no luck. I then turned off the machine and plugged the parallel cable into the lower port and went through the same iterations as above, with the same results. When I first started this adventure I was following the instructions here: http://ubuntuforums.org/showthread.php?t=1233589 and I issued these commands $ sudo modprobe parport_pc io=0xa400 I believe parport_pc is a generic Linux driver that sets up a standard configuration for parallel drivers, such as for printers, tape drives, and such. I think newer EMC2 versions can use this module and allows you to loadrt using lpt0 or lpt1 instead of 0x0378 and such. Earlier EMC2 versions needed to have parport_pc unloaded. $ sudo modprobe lp This is another generic Linux module for running printers. If you don't have a printer on your PC, don't load it because it will or may assign one or more parallel ports to printers and make them unavailable to EMC2. You shouldn't need to modprobe anything to get EMC2 to use parallel ports using hex register addresses. $ sudo /etc/init.d/cups restart CUPS is a frame work for running printers after parport_pc and lp have sorted out the lower level stuff and has nothing to do with EMC2. so thinking that may have made the parallel port unobtainable I went into $ sudo nano /etc/modules and commented out the two lines that had been added. I then restarted the machine and went through the above iteration of port addresses a second time. All to no avail. ... snip If the addf's are missing, the above should get you closer to a fix. I would start with a copy of the generic stepper configuration when prompted at EMC2's startup, along with the MPG connected to one of the add-on ports. EMC2 will copy the example files to a new directory which is configured to connect some
Re: [Emc-users] OT ? Kalman Filter
On 18 August 2011 03:07, Eric Keller eekel...@psu.edu wrote: You can get bogged down for years in this subject. When I want to do something quick and dirty, I use a least squares filter. Is this the same as the approach that I (re?)invented for deriving velocity from noisy data: 1) Fit a least-squares polynomial to the data raw_data - a + bx + cx^2 + dx^3... 2) Take the explicit differential of this polynomial gradient = b + 2cx + 3dx^2... 3) Solve for the required X (potentially in the future, with caveats) I have (almost undocumented, and forgotten) code somewhere that does the same thing in up to 7 linear dimensions, if it is any use to anyone. -- atp Torque wrenches are for the obedience of fools and the guidance of wise men -- Get a FREE DOWNLOAD! and learn more about uberSVN rich system, user administration capabilities and model configuration. Take the hassle out of deploying and managing Subversion and the tools developers use with it. http://p.sf.net/sfu/wandisco-d2d-2 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] On the status of BLDC component and Hostmot2
Andy, Peter W- greetings Thank you for info on the firmware naming. Andy: What is the best place to find the mapping between the configuration tags for bldc and the personality word whose bits are used in the pin definitions to define the existence of some pins? Best wishes John Prentice -- Get a FREE DOWNLOAD! and learn more about uberSVN rich system, user administration capabilities and model configuration. Take the hassle out of deploying and managing Subversion and the tools developers use with it. http://p.sf.net/sfu/wandisco-d2d-2 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] On the status of BLDC component and Hostmot2
On 18 August 2011 11:43, John Prentice j...@castlewd.freeserve.co.uk wrote: Andy: What is the best place to find the mapping between the configuration tags for bldc and the personality word Ignore personality, it's a side effect of the way that comp works and the auto-generated documentation. You will get the pins you need for the input and output modes you specify. -- atp Torque wrenches are for the obedience of fools and the guidance of wise men -- Get a FREE DOWNLOAD! and learn more about uberSVN rich system, user administration capabilities and model configuration. Take the hassle out of deploying and managing Subversion and the tools developers use with it. http://p.sf.net/sfu/wandisco-d2d-2 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Parallel port card that just works?
On 18 August 2011 03:48, doug metzler doug.metz...@gmail.com wrote:
When I first started this adventure I was following the instructions here:
http://ubuntuforums.org/showthread.php?t=1233589
and I issued these commands
$ sudo modprobe parport_pc io=0xa400
$ sudo modprobe lp
$ sudo /etc/init.d/cups restart
That all sounds a bit counterproductive, I am afraid
I have found that it can be helpful to load the bare minimum when
investigating what works.
I would open two terminal windows (which are indicated below by T1 and T2)
T1 sudo dmesg -c
T1 {password}
That clears the dmesg buffer so that you can see through the cruft.
T2 halrun
T2 loadrt hal_parport cfg=0,1,2
T2 show funct
Hopefully you should see 6 functions parport.0.read, parport.1.read,
parport.2.read, parport.0.write...
If not: T1 dmesg and read what it says.
Assuming it has all worked so far:
T2 loadrt threads
T2 addf parport.0.read thread1
T2 addf parport.1.read thread1
T2 addf parport.2.read thread1
T2 addf parport.0.write thread1
T2 addf parport.1.write thread1
T2 addf parport.2.write thread1
T2 start
(that last bit is rather important)
T1 dmesg
Now, in theory, you have your three auto-located parports linked to
HAL and running in a realtime thread. So, to see if the pins are
changing as hoped with the pendant attached:
T1 loadusr halmeter
This is the long-winded, manual way to set up HAL, but you do get to
see at what point it is failing.
The example above attempts to use parport_pc to locate the parports,
if that isn't loaded or isn't working, you can try the explicit
addresses in the loadrt hal_parport line instead of the indexes.
--
atp
Torque wrenches are for the obedience of fools and the guidance of wise men
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Re: [Emc-users] Mesa 5i23/7i33TA servo instability question
Scott, it does sound like you have exact same 1100M package as me. I was lucky when I purchased mine and a friend from Florida had the phone number for the Anilam Service Tech when I had a tuning problem. He spent 45 minutes on the phone with me tuning the amps mostly with a voltmeter and a screwdriver. I'm going to the other shop today (where the Anilam is located) and I'll bring my notes back that I tried to take while talking on the phone and tuning the amps. There might be some useful info on the amps in there. I've not looked as close at mine as you have but the encoder is shared by both the drive and the controller? I'll take some photos of my cabinets and put them on the forum later. John On 8/17/2011 2:48 PM, Scott Hasse wrote: John: Thanks, I'm hoping the documentation will turn out to be useful. We got the mill second or third hand, so we don't have the conversion information. Do you know if you can see the tuning parameters in the Anilam control software? Even with the following error at 1 inch it eventually hits following error. This Anliam mill has the velocity feedback going directly to the servo amps, both for EMC2 and Anilam control (I did not change that wiring). I have rotary encoders only. -- Get a FREE DOWNLOAD! and learn more about uberSVN rich system, user administration capabilities and model configuration. Take the hassle out of deploying and managing Subversion and the tools developers use with it. http://p.sf.net/sfu/wandisco-d2d-2 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Mesa 5i23/7i33TA servo instability question
On 18 August 2011 03:53, Scott Hasse scott.ha...@gmail.com wrote: However, when the directions are aligned such pressing - in the pncconf open loop test actually moves it in a X+ direction, Which it are you talking about? Conventionally X+ moves the table left or tool right, as coordinates are tool relative to work. -- atp Torque wrenches are for the obedience of fools and the guidance of wise men -- Get a FREE DOWNLOAD! and learn more about uberSVN rich system, user administration capabilities and model configuration. Take the hassle out of deploying and managing Subversion and the tools developers use with it. http://p.sf.net/sfu/wandisco-d2d-2 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Mesa 5i23/7i33TA servo instability question
Jon: That indeed does sound like a good plan. I should have some time to try that tonight. I believe my hal configuration does have all that set properly, but I will double check. Peter: Agreed, I will check the feedback direction Andy: I should have clarified this better. When things are correct, X+ does indeed move the table left. I guess the it I was referring to was the fixed tool head relative to the table :-S. John: The encoder does not go to the servo amp, only EMC2/Anilam depending on what is hooked up. Photos would be great, and I'll try to get some up as well some point soon. One hopefully quick question I have is with respect to the PID P parameter. Everything I've seen seems to indicate this should be a positive number in the EMC2 configuration. Is that correct? Thanks, Scott On Thu, Aug 18, 2011 at 6:28 AM, John Thornton bjt...@gmail.com wrote: Scott, it does sound like you have exact same 1100M package as me. I was lucky when I purchased mine and a friend from Florida had the phone number for the Anilam Service Tech when I had a tuning problem. He spent 45 minutes on the phone with me tuning the amps mostly with a voltmeter and a screwdriver. I'm going to the other shop today (where the Anilam is located) and I'll bring my notes back that I tried to take while talking on the phone and tuning the amps. There might be some useful info on the amps in there. I've not looked as close at mine as you have but the encoder is shared by both the drive and the controller? I'll take some photos of my cabinets and put them on the forum later. John On 8/17/2011 2:48 PM, Scott Hasse wrote: John: Thanks, I'm hoping the documentation will turn out to be useful. We got the mill second or third hand, so we don't have the conversion information. Do you know if you can see the tuning parameters in the Anilam control software? Even with the following error at 1 inch it eventually hits following error. This Anliam mill has the velocity feedback going directly to the servo amps, both for EMC2 and Anilam control (I did not change that wiring). I have rotary encoders only. -- Get a FREE DOWNLOAD! and learn more about uberSVN rich system, user administration capabilities and model configuration. Take the hassle out of deploying and managing Subversion and the tools developers use with it. http://p.sf.net/sfu/wandisco-d2d-2 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Get a FREE DOWNLOAD! and learn more about uberSVN rich system, user administration capabilities and model configuration. Take the hassle out of deploying and managing Subversion and the tools developers use with it. http://p.sf.net/sfu/wandisco-d2d-2 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] DC Brush servo drives
While I am still a long ways from completing my lathe project I have come to a crossroads with my drive system. I would like use the existing Fanuc DC brushed drives. But am having a hard time deciding what I should go with. They are Fanuc models 10m and 5m. What drives are people using to drive their Brushed beasts with? Clint -- Get a FREE DOWNLOAD! and learn more about uberSVN rich system, user administration capabilities and model configuration. Take the hassle out of deploying and managing Subversion and the tools developers use with it. http://p.sf.net/sfu/wandisco-d2d-2 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Mesa 5i23/7i33TA servo instability question
On 18 August 2011 13:10, Scott Hasse scott.ha...@gmail.com wrote: One hopefully quick question I have is with respect to the PID P parameter. Everything I've seen seems to indicate this should be a positive number in the EMC2 configuration. Is that correct? It should be what works. if it needs to be negative, so be it. -- atp Torque wrenches are for the obedience of fools and the guidance of wise men -- Get a FREE DOWNLOAD! and learn more about uberSVN rich system, user administration capabilities and model configuration. Take the hassle out of deploying and managing Subversion and the tools developers use with it. http://p.sf.net/sfu/wandisco-d2d-2 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] DC Brush servo drives
I am using SEM motors that came with the mill, they work great. I have three Electro-Craft motors for sale also and one SEM motor. i On Thu, Aug 18, 2011 at 8:03 AM, cl...@clintandheidi.com cl...@clintandheidi.com wrote: While I am still a long ways from completing my lathe project I have come to a crossroads with my drive system. I would like use the existing Fanuc DC brushed drives. But am having a hard time deciding what I should go with. They are Fanuc models 10m and 5m. What drives are people using to drive their Brushed beasts with? Clint -- Get a FREE DOWNLOAD! and learn more about uberSVN rich system, user administration capabilities and model configuration. Take the hassle out of deploying and managing Subversion and the tools developers use with it. http://p.sf.net/sfu/wandisco-d2d-2 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Get a FREE DOWNLOAD! and learn more about uberSVN rich system, user administration capabilities and model configuration. Take the hassle out of deploying and managing Subversion and the tools developers use with it. http://p.sf.net/sfu/wandisco-d2d-2 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Mesa 5i23/7i33TA servo instability question
On Thu, 18 Aug 2011, Scott Hasse wrote: Date: Thu, 18 Aug 2011 07:10:03 -0500 From: Scott Hasse scott.ha...@gmail.com 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] Mesa 5i23/7i33TA servo instability question One hopefully quick question I have is with respect to the PID P parameter. Everything I've seen seems to indicate this should be a positive number in the EMC2 configuration. Is that correct? Yes, the PID component MUST have positive tuning coeficients. If you need to reverse the feedback, change the sign of the output scale. The reason I emphasize this is that the PID compnent has a bug with negative tuning parameters that can lead to runaway on an otherwise properly setup control loop that saturates. Thanks, Scott Peter Wallace Mesa Electronics (\__/) (='.'=) This is Bunny. Copy and paste bunny into your ()_() signature to help him gain world domination. -- Get a FREE DOWNLOAD! and learn more about uberSVN rich system, user administration capabilities and model configuration. Take the hassle out of deploying and managing Subversion and the tools developers use with it. http://p.sf.net/sfu/wandisco-d2d-2 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] DC Brush servo drives
On 18 August 2011 14:03, cl...@clintandheidi.com cl...@clintandheidi.com wrote: While I am still a long ways from completing my lathe project I have come to a crossroads with my drive system. I would like use the existing Fanuc DC brushed drives. But am having a hard time deciding what I should go with. They are Fanuc models 10m and 5m. What drives are people using to drive their Brushed beasts with? I am not sure I understand the question. Is it just the Fanuc motors you intend to retain, or the motor-drives (amps) too? -- atp Torque wrenches are for the obedience of fools and the guidance of wise men -- Get a FREE DOWNLOAD! and learn more about uberSVN rich system, user administration capabilities and model configuration. Take the hassle out of deploying and managing Subversion and the tools developers use with it. http://p.sf.net/sfu/wandisco-d2d-2 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Mesa 5i23/7i33TA servo instability question
On 18 August 2011 14:48, andy pugh bodge...@gmail.com wrote: It should be what works. if it needs to be negative, so be it. Ignore this, Pete has pointed out a reason that this isn't true in the specific EMC2 case. -- atp Torque wrenches are for the obedience of fools and the guidance of wise men -- Get a FREE DOWNLOAD! and learn more about uberSVN rich system, user administration capabilities and model configuration. Take the hassle out of deploying and managing Subversion and the tools developers use with it. http://p.sf.net/sfu/wandisco-d2d-2 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] OT ? Kalman Filter
I sounds like you really only need a state estimator. A kalman filter handles things like variable uncertainty (which is essential for things like GPS). It takes quite a lot of computing power (you have to invert a matrix, with is N^3) and is complicated to get right (some corner cases can be unstable). If your system error is constant, then a state estimator is all you need. You just need a model of the system (probably just a second order physics model), and an estimate of the noise (probably hand tuned). Any controls book on state space controls should cover state estimators. -Dan On Wed, Aug 17, 2011 at 9:34 PM, Dave e...@dc9.tzo.com wrote: ... -- Get a FREE DOWNLOAD! and learn more about uberSVN rich system, user administration capabilities and model configuration. Take the hassle out of deploying and managing Subversion and the tools developers use with it. http://p.sf.net/sfu/wandisco-d2d-2 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Mesa 5i23/7i33TA servo instability question
Scott, You might check whether pncconf is producing the proper polarity in the INI file for INPUT_SCALE (for the encoder) and OUTPUT_SCALE (for the PWM servos). I believe there was a bug in an earlier version of pncconf. I ran into that and had to edit the INI file by hand to make both values negative, which was required for my setup. Karl On 08/17/2011 07:53 PM, Scott Hasse wrote: OK, so this has turned into a more interesting problem than I initially thought it would be. I've used halmeter to verify that, for instance, pin pid.x.enable is indeed getting enabled when the machine gets to the on state. Additionally, the pid.x.output becomes non-zero after the machine is turned to the on state, so I believe EMC2 for some reason thinks the motor needs to move. One odd thing is that I have triple verified in the pncconf open loop test that pressing + moves the table in the X+ direction and the encoders reflect positive movement. Negative moves the table in the X- direction and the encoders reflect negative movement. My encoders might not be absolutely scaled correctly, but they are in the ballpark. This correct configuration requires me to have the motor directions reversed. Under that configuration the mill wants to run away fairly rapidly. However, when the directions are aligned such pressing - in the pncconf open loop test actually moves it in a X+ direction, it reaches a following limit but not nearly as rapidly. With the servo amp input signal grounded, the axes do indeed move a tiny amount, but my understanding is that is OK and the the EMC2 PID feedback loop should correct that. I've put the full pncconf, hal and ini configuration files under revision control here: http://code.google.com/p/sector67-sandbox/source/browse/trunk/ProjectSheetCake/#ProjectSheetCake%2Femc2-configs%2Fpncconf The configs are 100% generated via pncconf, no hand-editing. This one for now has me stumped, so I'll have to sleep on it. Again, thanks all for the great advice. I still suspect I have a simple problem, but I cannot figure out what. Scott On Wed, Aug 17, 2011 at 4:03 PM, James Louis james.lo...@gastechnology.orgwrote: Scott, You got a lot of replies on a topic with a lot of fog surrounding it, but I need to chime in here so you don't repeat my mistake: I broke a motor coupling about a year ago during servo tuning. The sound almost scared the coolant out of me! I am no controls expert, but I now know why it happened. It was because I didn't model my own system before blindly tinkering with the ini file. Before doing anything I would advise knowing your Anilam servo amps. For example, my Yaskawa servo amps close a current loop internally, then have a velocity loop outside of that with adjustable P and I (via autotuning). EMC2 then closes the outermost position loop using only P and FF1. This is known as a P/PI Cascade Loop with Velocity Feed Forward. The I and D terms in my ini file remain at zero! It took a lot of reading outside of EMC2 documentation to cut through the fog, but it is now clear to me. There are several possible ways of nesting loops and combining control terms beside PID, so don't fall for the add a little of this and then a little of that approach. Jim -Original Message- From: Scott Hasse [mailto:scott.ha...@gmail.com] Sent: Wednesday, August 17, 2011 2:32 PM To: Enhanced Machine Controller (EMC) Subject: Re: [Emc-users] Mesa 5i23/7i33TA servo instability question I'm in the shop working on this right now and am wondering how to verify the PID loop is providing feedback to each axis. I've been using pncconf to generate the configuration, and assumed since it allows you to set PID that it would configure it to feedback automatically. However, since I've been using pncconf as a crutch, I'm not sure off-hand how to config PID feedback is working. I see P, I, D values in the ini file for each axis, but I am still seeing small amounts of servo instability. I see the instability even with the servo signal grounded. I have followed this page: http://wiki.linuxcnc.org/emcinfo.pl?Tuning_EMC2/HAL_PID_Loops and verified that the output voltages are correct, but get stumped at the: Set up PID loop add the loop and interconnect step. Thanks in advance for any advice, Scott On Wed, Aug 17, 2011 at 7:55 AM, John Thorntonbjt...@gmail.com wrote: The 1100M came both ways with glass scales (earlier model) then with encoder feedback. Mine is the encoder variety of 1100M. John On 8/17/2011 7:28 AM, andy pugh wrote: On 17 August 2011 04:15, Scott Hassescott.ha...@gmail.com wrote: To the point, though, I am having one not-so-minor problem. When I enable the servos, they are not completely stable, and I'll get following error almost immediately after enabling them. They don't run away, but the encoders show them moving ever so slightly, and physically the motors actually are
[Emc-users] Simodrive 611
I have a BP Discovery 308 with Simodrive 611 drives for the axis and spindle. There seems to be a broader range of drive/motor guys that follow the mailing list... so I'm posting the question here. My symptom is when I try and accellerate the spindle from 0 to 2400 rpm in one step the drive faults out with a generic fault. Sometimes when running the mill at 6000 RPM for a while (so good and warm) a Rapid Z up will give the same fault. I can ramp up to 6000 RPM by starting at 2000 RPM using 100 RPM increments with a G4 of 0.1 between. I've opened up the power supply section and replaced all the caps recently and that did not have any effect on the symptom. Would there be any reason to dig into the spindle and try and check the brushes? Thanks John -- Get a FREE DOWNLOAD! and learn more about uberSVN rich system, user administration capabilities and model configuration. Take the hassle out of deploying and managing Subversion and the tools developers use with it. http://p.sf.net/sfu/wandisco-d2d-2 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Mesa 5i23/7i33TA servo instability question
Scott, I found my sketchy notes on tuning the drives... Pin 1-2 should be 0.0mV Balance is RV5 Signal Gain start at 20.0 then run lag test (Anilam) I assume that to be a following error test that can be done with Halscope. I have the Anilam Installation Guide in pdf that pertains to the physical installation (comes in handy when fixing something) as well as a few other things that might be of use to you if you contact me directly I can e-mail them to you. John -- Get a FREE DOWNLOAD! and learn more about uberSVN rich system, user administration capabilities and model configuration. Take the hassle out of deploying and managing Subversion and the tools developers use with it. http://p.sf.net/sfu/wandisco-d2d-2 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] DC Brush servo drives
Sorry about any confusion. I am going to retain the motors. I am planning on upgrading the resolver/ tac gen setup with encoders. I was actually have built some of the UHU HP boards but recent testing has been given poor results @ operating voltages (160v). They showed promise @ 100v but when setup to 160v some of the traces on the boards fried. I would prefer an off the shelf component that is dependable and more reliable for this installation. So I am curious what other peoples suggestions are. - Reply message - From: andy pugh bodge...@gmail.com To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net Subject: [Emc-users] DC Brush servo drives Date: Thu, Aug 18, 2011 6:58 am On 18 August 2011 14:03, cl...@clintandheidi.com cl...@clintandheidi.com wrote: While I am still a long ways from completing my lathe project I have come to a crossroads with my drive system. I would like use the existing Fanuc DC brushed drives. But am having a hard time deciding what I should go with. They are Fanuc models 10m and 5m. What drives are people using to drive their Brushed beasts with? I am not sure I understand the question. Is it just the Fanuc motors you intend to retain, or the motor-drives (amps) too? -- atp Torque wrenches are for the obedience of fools and the guidance of wise men -- Get a FREE DOWNLOAD! and learn more about uberSVN rich system, user administration capabilities and model configuration. Take the hassle out of deploying and managing Subversion and the tools developers use with it. http://p.sf.net/sfu/wandisco-d2d-2 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Get a FREE DOWNLOAD! and learn more about uberSVN rich system, user administration capabilities and model configuration. Take the hassle out of deploying and managing Subversion and the tools developers use with it. http://p.sf.net/sfu/wandisco-d2d-2 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Simodrive 611
On Thu, 18 Aug 2011, John Thornton wrote: Date: Thu, 18 Aug 2011 10:29:11 -0500 From: John Thornton bjt...@gmail.com Reply-To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net To: EMC Mailing List emc-users@lists.sourceforge.net Subject: [Emc-users] Simodrive 611 I have a BP Discovery 308 with Simodrive 611 drives for the axis and spindle. There seems to be a broader range of drive/motor guys that follow the mailing list... so I'm posting the question here. My symptom is when I try and accellerate the spindle from 0 to 2400 rpm in one step the drive faults out with a generic fault. Sometimes when running the mill at 6000 RPM for a while (so good and warm) a Rapid Z up will give the same fault. I can ramp up to 6000 RPM by starting at 2000 RPM using 100 RPM increments with a G4 of 0.1 between. I've opened up the power supply section and replaced all the caps recently and that did not have any effect on the symptom. Would there be any reason to dig into the spindle and try and check the brushes? Thanks John Does the Z axis move the motor? maybe its an intermittant electrical connection. (I guess loose brushes might qualify as an intermittant electrical connection as well) Is it possibly just a dip in you line voltage tripping the error? -- Get a FREE DOWNLOAD! and learn more about uberSVN rich system, user administration capabilities and model configuration. Take the hassle out of deploying and managing Subversion and the tools developers use with it. http://p.sf.net/sfu/wandisco-d2d-2 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users Peter Wallace Mesa Electronics (\__/) (='.'=) This is Bunny. Copy and paste bunny into your ()_() signature to help him gain world domination. -- Get a FREE DOWNLOAD! and learn more about uberSVN rich system, user administration capabilities and model configuration. Take the hassle out of deploying and managing Subversion and the tools developers use with it. http://p.sf.net/sfu/wandisco-d2d-2 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Simodrive 611
Sounds like you have a common DC bus between your spindle drive and your Z axis drive? If the DC bus dips too far, the drive will shutdown. You may want to put a meter on the DC bus and run the drives and see if the bus isn't dipping just prior to the shutdown. Make sure you use a good meter - a 400 volt AC input power supply will have about 600 volts of DC bus voltage. All drive systems have their limits. Perhaps they slightly undersized the DC power supply section on that drive system? On my lathe I have a 611 spindle drive and I was tripping the drive out frequently, I ended up pulling out the spindle motor and I replaced all of the brushes which were obviously shot, and I polished up the commutator and it now runs perfectly. I just did that a few months ago. Dave On 8/18/2011 11:29 AM, John Thornton wrote: I have a BP Discovery 308 with Simodrive 611 drives for the axis and spindle. There seems to be a broader range of drive/motor guys that follow the mailing list... so I'm posting the question here. My symptom is when I try and accellerate the spindle from 0 to2400 rpm in one step the drive faults out with a generic fault. Sometimes when running the mill at 6000 RPM for a while (so good and warm) a Rapid Z up will give the same fault. I can ramp up to 6000 RPM by starting at 2000 RPM using 100 RPM increments with a G4 of 0.1 between. I've opened up the power supply section and replaced all the caps recently and that did not have any effect on the symptom. Would there be any reason to dig into the spindle and try and check the brushes? Thanks John -- Get a FREE DOWNLOAD! and learn more about uberSVN rich system, user administration capabilities and model configuration. Take the hassle out of deploying and managing Subversion and the tools developers use with it. http://p.sf.net/sfu/wandisco-d2d-2 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Get a FREE DOWNLOAD! and learn more about uberSVN rich system, user administration capabilities and model configuration. Take the hassle out of deploying and managing Subversion and the tools developers use with it. http://p.sf.net/sfu/wandisco-d2d-2 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] DC Brush servo drives
Check out Granite Devices, great boards and good support. I use a set of them on my machine and they are rated for the higher voltages. Fwiw J. Johnson On Thu, 18 Aug 2011 08:32:31 -0700, cl...@clintandheidi.com wrote: Sorry about any confusion. I am going to retain the motors. I am planning on upgrading the resolver/ tac gen setup with encoders. I was actually have built some of the UHU HP boards but recent testing has been given poor results @ operating voltages (160v). They showed promise @ 100v but when setup to 160v some of the traces on the boards fried. I would prefer an off the shelf component that is dependable and more reliable for this installation. So I am curious what other peoples suggestions are. - Reply message - From: andy pugh bodge...@gmail.com To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net Subject: [Emc-users] DC Brush servo drives Date: Thu, Aug 18, 2011 6:58 am On 18 August 2011 14:03, cl...@clintandheidi.com cl...@clintandheidi.com wrote: While I am still a long ways from completing my lathe project I have come to a crossroads with my drive system. I would like use the existing Fanuc DC brushed drives. But am having a hard time deciding what I should go with. They are Fanuc models 10m and 5m. What drives are people using to drive their Brushed beasts with? I am not sure I understand the question. Is it just the Fanuc motors you intend to retain, or the motor-drives (amps) too? -- atp Torque wrenches are for the obedience of fools and the guidance of wise men -- Get a FREE DOWNLOAD! and learn more about uberSVN rich system, user administration capabilities and model configuration. Take the hassle out of deploying and managing Subversion and the tools developers use with it. http://p.sf.net/sfu/wandisco-d2d-2 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Get a FREE DOWNLOAD! and learn more about uberSVN rich system, user administration capabilities and model configuration. Take the hassle out of deploying and managing Subversion and the tools developers use with it. http://p.sf.net/sfu/wandisco-d2d-2 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users www.innovention-tech.com -- Get a FREE DOWNLOAD! and learn more about uberSVN rich system, user administration capabilities and model configuration. Take the hassle out of deploying and managing Subversion and the tools developers use with it. http://p.sf.net/sfu/wandisco-d2d-2 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] DC Brush servo drives
I thought granite devices are step/dir. (well - I guess I don't know what the OP was thinking.) If I was going that route - I would get one of the servo interface solutons for emc (pico systems, mesa are probably the biggest - I use mesa) and some analog drives. (or mesa and pico have drive solutions iirc) I would seriously look at running true closed loop (not step/dir drives) It take a little more work to setup - but having encoder feedback directly to emc has so many benifits. On my conversion - I am using mesa interface hardware and analog AMC servo drives (ebay purchases). Very happy with it. sam On Thu, 18 Aug 2011 10:23:55 -0600 Jarrett Johnson hjjohn...@sasktel.net wrote: Check out Granite Devices, great boards and good support. I use a set of them on my machine and they are rated for the higher voltages. Fwiw J. Johnson On Thu, 18 Aug 2011 08:32:31 -0700, cl...@clintandheidi.com wrote: Sorry about any confusion. I am going to retain the motors. I am planning on upgrading the resolver/ tac gen setup with encoders. I was actually have built some of the UHU HP boards but recent testing has been given poor results @ operating voltages (160v). They showed promise @ 100v but when setup to 160v some of the traces on the boards fried. I would prefer an off the shelf component that is dependable and more reliable for this installation. So I am curious what other peoples suggestions are. - Reply message - From: andy pugh bodge...@gmail.com To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net Subject: [Emc-users] DC Brush servo drives Date: Thu, Aug 18, 2011 6:58 am On 18 August 2011 14:03, cl...@clintandheidi.com cl...@clintandheidi.com wrote: While I am still a long ways from completing my lathe project I have come to a crossroads with my drive system. I would like use the existing Fanuc DC brushed drives. But am having a hard time deciding what I should go with. They are Fanuc models 10m and 5m. What drives are people using to drive their Brushed beasts with? I am not sure I understand the question. Is it just the Fanuc motors you intend to retain, or the motor-drives (amps) too? -- atp Torque wrenches are for the obedience of fools and the guidance of wise men -- Get a FREE DOWNLOAD! and learn more about uberSVN rich system, user administration capabilities and model configuration. Take the hassle out of deploying and managing Subversion and the tools developers use with it. http://p.sf.net/sfu/wandisco-d2d-2 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Get a FREE DOWNLOAD! and learn more about uberSVN rich system, user administration capabilities and model configuration. Take the hassle out of deploying and managing Subversion and the tools developers use with it. http://p.sf.net/sfu/wandisco-d2d-2 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users www.innovention-tech.com -- Get a FREE DOWNLOAD! and learn more about uberSVN rich system, user administration capabilities and model configuration. Take the hassle out of deploying and managing Subversion and the tools developers use with it. http://p.sf.net/sfu/wandisco-d2d-2 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Get a FREE DOWNLOAD! and learn more about uberSVN rich system, user administration capabilities and model configuration. Take the hassle out of deploying and managing Subversion and the tools developers use with it. http://p.sf.net/sfu/wandisco-d2d-2 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Simodrive 611
Yes, the spindle motor moves with the Z. The spindle speed symptom is repeatable so I assume intermittent connections would be ruled out... Thanks for the ideas John On 8/18/2011 11:01 AM, Peter C. Wallace wrote: On Thu, 18 Aug 2011, John Thornton wrote: Date: Thu, 18 Aug 2011 10:29:11 -0500 From: John Thorntonbjt...@gmail.com Reply-To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net To: EMC Mailing Listemc-users@lists.sourceforge.net Subject: [Emc-users] Simodrive 611 I have a BP Discovery 308 with Simodrive 611 drives for the axis and spindle. There seems to be a broader range of drive/motor guys that follow the mailing list... so I'm posting the question here. My symptom is when I try and accellerate the spindle from 0 to2400 rpm in one step the drive faults out with a generic fault. Sometimes when running the mill at 6000 RPM for a while (so good and warm) a Rapid Z up will give the same fault. I can ramp up to 6000 RPM by starting at 2000 RPM using 100 RPM increments with a G4 of 0.1 between. I've opened up the power supply section and replaced all the caps recently and that did not have any effect on the symptom. Would there be any reason to dig into the spindle and try and check the brushes? Thanks John Does the Z axis move the motor? maybe its an intermittant electrical connection. (I guess loose brushes might qualify as an intermittant electrical connection as well) Is it possibly just a dip in you line voltage tripping the error? -- Get a FREE DOWNLOAD! and learn more about uberSVN rich system, user administration capabilities and model configuration. Take the hassle out of deploying and managing Subversion and the tools developers use with it. http://p.sf.net/sfu/wandisco-d2d-2 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users Peter Wallace Mesa Electronics (\__/) (='.'=) This is Bunny. Copy and paste bunny into your ()_() signature to help him gain world domination. -- Get a FREE DOWNLOAD! and learn more about uberSVN rich system, user administration capabilities and model configuration. Take the hassle out of deploying and managing Subversion and the tools developers use with it. http://p.sf.net/sfu/wandisco-d2d-2 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Get a FREE DOWNLOAD! and learn more about uberSVN rich system, user administration capabilities and model configuration. Take the hassle out of deploying and managing Subversion and the tools developers use with it. http://p.sf.net/sfu/wandisco-d2d-2 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Simodrive 611
Yes it is a common DC drive for the spindle and all the axis. I've had a good meter on the DC buss and can not see any voltage fluctuation of any magnitude when starting up the spindle. And yes it is a 600VDC buss. I'll go for the brushes next break in the action I have... I see a bit of time to do that in about a month. Are the brushes special? Or where did you get them? Thanks for the ideas John On 8/18/2011 11:18 AM, Dave wrote: Sounds like you have a common DC bus between your spindle drive and your Z axis drive? If the DC bus dips too far, the drive will shutdown. You may want to put a meter on the DC bus and run the drives and see if the bus isn't dipping just prior to the shutdown. Make sure you use a good meter - a 400 volt AC input power supply will have about 600 volts of DC bus voltage. All drive systems have their limits. Perhaps they slightly undersized the DC power supply section on that drive system? On my lathe I have a 611 spindle drive and I was tripping the drive out frequently, I ended up pulling out the spindle motor and I replaced all of the brushes which were obviously shot, and I polished up the commutator and it now runs perfectly. I just did that a few months ago. Dave On 8/18/2011 11:29 AM, John Thornton wrote: I have a BP Discovery 308 with Simodrive 611 drives for the axis and spindle. There seems to be a broader range of drive/motor guys that follow the mailing list... so I'm posting the question here. My symptom is when I try and accellerate the spindle from 0 to2400 rpm in one step the drive faults out with a generic fault. Sometimes when running the mill at 6000 RPM for a while (so good and warm) a Rapid Z up will give the same fault. I can ramp up to 6000 RPM by starting at 2000 RPM using 100 RPM increments with a G4 of 0.1 between. I've opened up the power supply section and replaced all the caps recently and that did not have any effect on the symptom. Would there be any reason to dig into the spindle and try and check the brushes? Thanks John -- Get a FREE DOWNLOAD! and learn more about uberSVN rich system, user administration capabilities and model configuration. Take the hassle out of deploying and managing Subversion and the tools developers use with it. http://p.sf.net/sfu/wandisco-d2d-2 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Get a FREE DOWNLOAD! and learn more about uberSVN rich system, user administration capabilities and model configuration. Take the hassle out of deploying and managing Subversion and the tools developers use with it. http://p.sf.net/sfu/wandisco-d2d-2 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Get a FREE DOWNLOAD! and learn more about uberSVN rich system, user administration capabilities and model configuration. Take the hassle out of deploying and managing Subversion and the tools developers use with it. http://p.sf.net/sfu/wandisco-d2d-2 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] DC Brush servo drives
On Thu, 2011-08-18 at 08:32 -0700, cl...@clintandheidi.com wrote: Sorry about any confusion. I am going to retain the motors. I am planning on upgrading the resolver/ tac gen setup with encoders. I was actually have built some of the UHU HP boards but recent testing has been given poor results @ operating voltages (160v). They showed promise @ 100v but when setup to 160v some of the traces on the boards fried. I would prefer an off the shelf component that is dependable and more reliable for this installation. So I am curious what other peoples suggestions are. ... snip I replaced my HNC resolvers and tachs with encoders: http://www.wallacecompany.com/cnc_lathe/HNC/ and used Jon's amps: http://pico-systems.com/pwmservo.html I'm running at 100 Volts, but the amps are rated for 160 Volts. -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/index.html California, USA -- Get a FREE DOWNLOAD! and learn more about uberSVN rich system, user administration capabilities and model configuration. Take the hassle out of deploying and managing Subversion and the tools developers use with it. http://p.sf.net/sfu/wandisco-d2d-2 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Simodrive 611
I think you will probably have to order the brushes via a motor shop or directly from Siemens if they are Siemens motors.The Siemens office in Elk Grove Village, IL would probably take a credit card order over the phone if you want to buy them direct. I don't know how big your spindle motor is but I think there was 24 brushes in my spindle motor.They were in 4 gangs around the commutator.They were perhaps 5/8 x 1/4 in section and probably just over an inch long. I had to pull the motor from the machine so I could get to them all. They came shrinkwrapped to a piece of cardboard, but they were sourced from the UK and I don't think they were Siemens OEM equipment.They were spares that came with the lathe. I have no idea how much they cost. If you come up short on sources I am sure that I know of a couple here in Indiana that will sell to you. I also have the source from the UK also if you need that. Dave On 8/18/2011 12:59 PM, John Thornton wrote: Yes it is a common DC drive for the spindle and all the axis. I've had a good meter on the DC buss and can not see any voltage fluctuation of any magnitude when starting up the spindle. And yes it is a 600VDC buss. I'll go for the brushes next break in the action I have... I see a bit of time to do that in about a month. Are the brushes special? Or where did you get them? Thanks for the ideas John On 8/18/2011 11:18 AM, Dave wrote: Sounds like you have a common DC bus between your spindle drive and your Z axis drive? If the DC bus dips too far, the drive will shutdown. You may want to put a meter on the DC bus and run the drives and see if the bus isn't dipping just prior to the shutdown. Make sure you use a good meter - a 400 volt AC input power supply will have about 600 volts of DC bus voltage. All drive systems have their limits. Perhaps they slightly undersized the DC power supply section on that drive system? On my lathe I have a 611 spindle drive and I was tripping the drive out frequently, I ended up pulling out the spindle motor and I replaced all of the brushes which were obviously shot, and I polished up the commutator and it now runs perfectly. I just did that a few months ago. Dave On 8/18/2011 11:29 AM, John Thornton wrote: I have a BP Discovery 308 with Simodrive 611 drives for the axis and spindle. There seems to be a broader range of drive/motor guys that follow the mailing list... so I'm posting the question here. My symptom is when I try and accellerate the spindle from 0 to2400 rpm in one step the drive faults out with a generic fault. Sometimes when running the mill at 6000 RPM for a while (so good and warm) a Rapid Z up will give the same fault. I can ramp up to 6000 RPM by starting at 2000 RPM using 100 RPM increments with a G4 of 0.1 between. I've opened up the power supply section and replaced all the caps recently and that did not have any effect on the symptom. Would there be any reason to dig into the spindle and try and check the brushes? Thanks John -- Get a FREE DOWNLOAD! and learn more about uberSVN rich system, user administration capabilities and model configuration. Take the hassle out of deploying and managing Subversion and the tools developers use with it. http://p.sf.net/sfu/wandisco-d2d-2 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Get a FREE DOWNLOAD! and learn more about uberSVN rich system, user administration capabilities and model configuration. Take the hassle out of deploying and managing Subversion and the tools developers use with it. http://p.sf.net/sfu/wandisco-d2d-2 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Get a FREE DOWNLOAD! and learn more about uberSVN rich system, user administration capabilities and model configuration. Take the hassle out of deploying and managing Subversion and the tools developers use with it. http://p.sf.net/sfu/wandisco-d2d-2 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Get a FREE DOWNLOAD! and learn more about uberSVN rich system, user administration capabilities and model configuration. Take the hassle out of deploying and managing Subversion and the tools developers use with it. http://p.sf.net/sfu/wandisco-d2d-2 ___ Emc-users
[Emc-users] driver timing settings
The electronics is new to me so please excuse the simpleness of my question. Here is the timing info I have for my drivers: http://www.forsalesticker.com/ib106Timing-13.png http://www.forsalesticker.com/ib106Timing-54.png Now I need to get the right figures to use for Step Time, Step Space, Direction Hold, and Direction Setup. What should I use for the value of step Time? I have guessed at the others ?? Step Time: Step Space: 3000 Direction Hold: 5500 Direction Setup: 2000 -- Get a FREE DOWNLOAD! and learn more about uberSVN rich system, user administration capabilities and model configuration. Take the hassle out of deploying and managing Subversion and the tools developers use with it. http://p.sf.net/sfu/wandisco-d2d-2 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Simodrive 611
John Thornton wrote: My symptom is when I try and accellerate the spindle from 0 to 2400 rpm in one step the drive faults out with a generic fault. Sometimes when running the mill at 6000 RPM for a while (so good and warm) a Rapid Z up will give the same fault. I can ramp up to 6000 RPM by starting at 2000 RPM using 100 RPM increments with a G4 of 0.1 between. What you need to do is insert a filter between the spindle speed command and the DAC that sends the speed command to the drive. I have used the hal lowpass component for this, but apparently the limit component can also be used to limit the rate of change of the output. See : http://pico-systems.com/codes/jebport/ppmc_motion.hal for how I have spindle speed filtered on my Bridgeport. As for the Z movement giving a fault, I can imagine a couple possible things. One is if all the power supplies are common, the rapid Z move might cause the DC bus voltage to dip. Another possible thing is the spindle spline is binding and causing the bearings to drag. Jon -- Get a FREE DOWNLOAD! and learn more about uberSVN rich system, user administration capabilities and model configuration. Take the hassle out of deploying and managing Subversion and the tools developers use with it. http://p.sf.net/sfu/wandisco-d2d-2 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Simodrive 611
Sorry, I should have stated up front that this machine is not running EMC...yet! The fix needs to be on the hardware side as it should work as is. I use a programming workaround now to get to 6000 RPM with a slight G4 pause between speed increases. The Z does not have a spline on the spindle it is a VMC so the whole spindle and motor is moved by the Z servo. Thanks for the link I'll save that for when I change my BP Series 1 with Anilam control to EMC2. Thanks for the ideas John On 8/18/2011 1:29 PM, Jon Elson wrote: John Thornton wrote: My symptom is when I try and accellerate the spindle from 0 to2400 rpm in one step the drive faults out with a generic fault. Sometimes when running the mill at 6000 RPM for a while (so good and warm) a Rapid Z up will give the same fault. I can ramp up to 6000 RPM by starting at 2000 RPM using 100 RPM increments with a G4 of 0.1 between. What you need to do is insert a filter between the spindle speed command and the DAC that sends the speed command to the drive. I have used the hal lowpass component for this, but apparently the limit component can also be used to limit the rate of change of the output. See : http://pico-systems.com/codes/jebport/ppmc_motion.hal for how I have spindle speed filtered on my Bridgeport. As for the Z movement giving a fault, I can imagine a couple possible things. One is if all the power supplies are common, the rapid Z move might cause the DC bus voltage to dip. Another possible thing is the spindle spline is binding and causing the bearings to drag. Jon -- Get a FREE DOWNLOAD! and learn more about uberSVN rich system, user administration capabilities and model configuration. Take the hassle out of deploying and managing Subversion and the tools developers use with it. http://p.sf.net/sfu/wandisco-d2d-2 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] DC Brush servo drives
I have looked at both thanks for the feedback. I am trying to weigh my options. I have a MESA 5I20 that I am currently using mostly for general I/O for the toolchanger but also planned to use it for the AXIS control. I am looking for the best bang for the buck. I am not finding very many companys that offer big enough drives for the size motors I am using... I actually hope to do closed loop when all said and done -Original Message- From: sa...@empirescreen.com [mailto:sa...@empirescreen.com] Sent: Thursday, August 18, 2011 9:38 AM To: Enhanced Machine Controller (EMC) Subject: Re: [Emc-users] DC Brush servo drives I thought granite devices are step/dir. (well - I guess I don't know what the OP was thinking.) If I was going that route - I would get one of the servo interface solutons for emc (pico systems, mesa are probably the biggest - I use mesa) and some analog drives. (or mesa and pico have drive solutions iirc) I would seriously look at running true closed loop (not step/dir drives) It take a little more work to setup - but having encoder feedback directly to emc has so many benifits. On my conversion - I am using mesa interface hardware and analog AMC servo drives (ebay purchases). Very happy with it. sam On Thu, 18 Aug 2011 10:23:55 -0600 Jarrett Johnson hjjohn...@sasktel.net wrote: Check out Granite Devices, great boards and good support. I use a set of them on my machine and they are rated for the higher voltages. Fwiw J. Johnson On Thu, 18 Aug 2011 08:32:31 -0700, cl...@clintandheidi.com wrote: Sorry about any confusion. I am going to retain the motors. I am planning on upgrading the resolver/ tac gen setup with encoders. I was actually have built some of the UHU HP boards but recent testing has been given poor results @ operating voltages (160v). They showed promise @ 100v but when setup to 160v some of the traces on the boards fried. I would prefer an off the shelf component that is dependable and more reliable for this installation. So I am curious what other peoples suggestions are. - Reply message - From: andy pugh bodge...@gmail.com To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net Subject: [Emc-users] DC Brush servo drives Date: Thu, Aug 18, 2011 6:58 am On 18 August 2011 14:03, cl...@clintandheidi.com cl...@clintandheidi.com wrote: While I am still a long ways from completing my lathe project I have come to a crossroads with my drive system. I would like use the existing Fanuc DC brushed drives. But am having a hard time deciding what I should go with. They are Fanuc models 10m and 5m. What drives are people using to drive their Brushed beasts with? I am not sure I understand the question. Is it just the Fanuc motors you intend to retain, or the motor-drives (amps) too? -- atp Torque wrenches are for the obedience of fools and the guidance of wise men -- Get a FREE DOWNLOAD! and learn more about uberSVN rich system, user administration capabilities and model configuration. Take the hassle out of deploying and managing Subversion and the tools developers use with it. http://p.sf.net/sfu/wandisco-d2d-2 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Get a FREE DOWNLOAD! and learn more about uberSVN rich system, user administration capabilities and model configuration. Take the hassle out of deploying and managing Subversion and the tools developers use with it. http://p.sf.net/sfu/wandisco-d2d-2 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users www.innovention-tech.com -- Get a FREE DOWNLOAD! and learn more about uberSVN rich system, user administration capabilities and model configuration. Take the hassle out of deploying and managing Subversion and the tools developers use with it. http://p.sf.net/sfu/wandisco-d2d-2 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Get a FREE DOWNLOAD! and learn more about uberSVN rich system, user administration capabilities and model configuration. Take the hassle out of deploying and managing Subversion and the tools developers use with it. http://p.sf.net/sfu/wandisco-d2d-2 ___ Emc-users mailing list Emc-users@lists.sourceforge.net
Re: [Emc-users] DC Brush servo drives
I am using amc BE40a40ac. I am sure they are very spendy new. They are 40a peak (20cont) peak 400v max. I am using some old inland servos. early 80's I would say. http://electronicsam.com/images/KandT/DSC_0242.JPG 160v is about what we are running for a max of 1200rpm with these servos They are about 1 amp/ft-lb - so with these amps I get 20ft-lbs cont. (calculates out to about 4tons of force at the axis) sam On Thu, 18 Aug 2011 12:52:06 -0700 Clint Washburn cl...@clintandheidi.com wrote: I have looked at both thanks for the feedback. I am trying to weigh my options. I have a MESA 5I20 that I am currently using mostly for general I/O for the toolchanger but also planned to use it for the AXIS control. I am looking for the best bang for the buck. I am not finding very many companys that offer big enough drives for the size motors I am using... I actually hope to do closed loop when all said and done -Original Message- From: sa...@empirescreen.com [mailto:sa...@empirescreen.com] Sent: Thursday, August 18, 2011 9:38 AM To: Enhanced Machine Controller (EMC) Subject: Re: [Emc-users] DC Brush servo drives I thought granite devices are step/dir. (well - I guess I don't know what the OP was thinking.) If I was going that route - I would get one of the servo interface solutons for emc (pico systems, mesa are probably the biggest - I use mesa) and some analog drives. (or mesa and pico have drive solutions iirc) I would seriously look at running true closed loop (not step/dir drives) It take a little more work to setup - but having encoder feedback directly to emc has so many benifits. On my conversion - I am using mesa interface hardware and analog AMC servo drives (ebay purchases). Very happy with it. sam On Thu, 18 Aug 2011 10:23:55 -0600 Jarrett Johnson hjjohn...@sasktel.net wrote: Check out Granite Devices, great boards and good support. I use a set of them on my machine and they are rated for the higher voltages. Fwiw J. Johnson On Thu, 18 Aug 2011 08:32:31 -0700, cl...@clintandheidi.com wrote: Sorry about any confusion. I am going to retain the motors. I am planning on upgrading the resolver/ tac gen setup with encoders. I was actually have built some of the UHU HP boards but recent testing has been given poor results @ operating voltages (160v). They showed promise @ 100v but when setup to 160v some of the traces on the boards fried. I would prefer an off the shelf component that is dependable and more reliable for this installation. So I am curious what other peoples suggestions are. - Reply message - From: andy pugh bodge...@gmail.com To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net Subject: [Emc-users] DC Brush servo drives Date: Thu, Aug 18, 2011 6:58 am On 18 August 2011 14:03, cl...@clintandheidi.com cl...@clintandheidi.com wrote: While I am still a long ways from completing my lathe project I have come to a crossroads with my drive system. I would like use the existing Fanuc DC brushed drives. But am having a hard time deciding what I should go with. They are Fanuc models 10m and 5m. What drives are people using to drive their Brushed beasts with? I am not sure I understand the question. Is it just the Fanuc motors you intend to retain, or the motor-drives (amps) too? -- atp Torque wrenches are for the obedience of fools and the guidance of wise men -- Get a FREE DOWNLOAD! and learn more about uberSVN rich system, user administration capabilities and model configuration. Take the hassle out of deploying and managing Subversion and the tools developers use with it. http://p.sf.net/sfu/wandisco-d2d-2 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Get a FREE DOWNLOAD! and learn more about uberSVN rich system, user administration capabilities and model configuration. Take the hassle out of deploying and managing Subversion and the tools developers use with it. http://p.sf.net/sfu/wandisco-d2d-2 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users www.innovention-tech.com -- Get a FREE DOWNLOAD! and learn more about uberSVN rich system, user administration capabilities and model configuration. Take the hassle out of deploying and managing Subversion and the tools developers use with it. http://p.sf.net/sfu/wandisco-d2d-2
[Emc-users] [OT] Inventor of the robotic arm dead at 99
This may not mean anything to some, but today's Washington Post contains a well-written obituary of George C. Devol, the self-taught inventor of the robotic arm that came to be known as the Ultimate. He died August 11 at his home in Connecticut. The obit contains a quote from him that reminds me of us sometimes. On subject of his lack of formal education, he said I always went into areas of industry where nobody else knew anything either. There was nowhere to go to get information, so I generated it. Regards, Kent -- Get a FREE DOWNLOAD! and learn more about uberSVN rich system, user administration capabilities and model configuration. Take the hassle out of deploying and managing Subversion and the tools developers use with it. http://p.sf.net/sfu/wandisco-d2d-2 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] [OT] Inventor of the robotic arm dead at 99 --- correction
On 8/18/2011 5:23 PM, Kent A. Reed wrote: the robotic arm that came to be known as the Ultimate. Sorry. Of course it was the Unimate. -Kent -- Get a FREE DOWNLOAD! and learn more about uberSVN rich system, user administration capabilities and model configuration. Take the hassle out of deploying and managing Subversion and the tools developers use with it. http://p.sf.net/sfu/wandisco-d2d-2 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] [OT] Inventor of the robotic arm dead at 99
On Thursday, August 18, 2011 05:27:01 PM Kent A. Reed did opine: [...Devol death] The obit contains a quote from him that reminds me of us sometimes. On subject of his lack of formal education, he said I always went into areas of industry where nobody else knew anything either. There was nowhere to go to get information, so I generated it. Regards, Kent For the group as a whole, +1000, Kent. Cheers, gene -- There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order. -Ed Howdershelt (Author) Linux: the choice of a GNU generation -- k...@cis.ufl.edu put this on Tshirts in '93 -- Get a FREE DOWNLOAD! and learn more about uberSVN rich system, user administration capabilities and model configuration. Take the hassle out of deploying and managing Subversion and the tools developers use with it. http://p.sf.net/sfu/wandisco-d2d-2 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Simodrive 611
The spindle is AFAIK 7.5hp. In some places of the drawings it says 7.5hp AC but it is clearly run by the Simodrive... I'll get up there and check the belt and look to see if I see any place where brushes might be. Thanks John On 8/18/2011 12:22 PM, Dave wrote: I think you will probably have to order the brushes via a motor shop or directly from Siemens if they are Siemens motors.The Siemens office in Elk Grove Village, IL would probably take a credit card order over the phone if you want to buy them direct. I don't know how big your spindle motor is but I think there was 24 brushes in my spindle motor.They were in 4 gangs around the commutator.They were perhaps 5/8 x 1/4 in section and probably just over an inch long. I had to pull the motor from the machine so I could get to them all. They came shrinkwrapped to a piece of cardboard, but they were sourced from the UK and I don't think they were Siemens OEM equipment.They were spares that came with the lathe. I have no idea how much they cost. If you come up short on sources I am sure that I know of a couple here in Indiana that will sell to you. I also have the source from the UK also if you need that. Dave On 8/18/2011 12:59 PM, John Thornton wrote: Yes it is a common DC drive for the spindle and all the axis. I've had a good meter on the DC buss and can not see any voltage fluctuation of any magnitude when starting up the spindle. And yes it is a 600VDC buss. I'll go for the brushes next break in the action I have... I see a bit of time to do that in about a month. Are the brushes special? Or where did you get them? Thanks for the ideas John On 8/18/2011 11:18 AM, Dave wrote: Sounds like you have a common DC bus between your spindle drive and your Z axis drive? If the DC bus dips too far, the drive will shutdown. You may want to put a meter on the DC bus and run the drives and see if the bus isn't dipping just prior to the shutdown. Make sure you use a good meter - a 400 volt AC input power supply will have about 600 volts of DC bus voltage. All drive systems have their limits. Perhaps they slightly undersized the DC power supply section on that drive system? On my lathe I have a 611 spindle drive and I was tripping the drive out frequently, I ended up pulling out the spindle motor and I replaced all of the brushes which were obviously shot, and I polished up the commutator and it now runs perfectly. I just did that a few months ago. Dave On 8/18/2011 11:29 AM, John Thornton wrote: I have a BP Discovery 308 with Simodrive 611 drives for the axis and spindle. There seems to be a broader range of drive/motor guys that follow the mailing list... so I'm posting the question here. My symptom is when I try and accellerate the spindle from 0 to2400 rpm in one step the drive faults out with a generic fault. Sometimes when running the mill at 6000 RPM for a while (so good and warm) a Rapid Z up will give the same fault. I can ramp up to 6000 RPM by starting at 2000 RPM using 100 RPM increments with a G4 of 0.1 between. I've opened up the power supply section and replaced all the caps recently and that did not have any effect on the symptom. Would there be any reason to dig into the spindle and try and check the brushes? Thanks John -- Get a FREE DOWNLOAD! and learn more about uberSVN rich system, user administration capabilities and model configuration. Take the hassle out of deploying and managing Subversion and the tools developers use with it. http://p.sf.net/sfu/wandisco-d2d-2 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Get a FREE DOWNLOAD! and learn more about uberSVN rich system, user administration capabilities and model configuration. Take the hassle out of deploying and managing Subversion and the tools developers use with it. http://p.sf.net/sfu/wandisco-d2d-2 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Get a FREE DOWNLOAD! and learn more about uberSVN rich system, user administration capabilities and model configuration. Take the hassle out of deploying and managing Subversion and the tools developers use with it. http://p.sf.net/sfu/wandisco-d2d-2 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Get a FREE DOWNLOAD! and learn more about uberSVN rich system, user
Re: [Emc-users] On the status of BLDC component and Hostmot2
On 18 August 2011 20:27, John Prentice j...@castlewd.freeserve.co.uk wrote: I suspect there could be a coding problem in 3pwmgen. The documentation and the loaded component have fault as an output pin. All the description of it suggests it should be an input (e.g. it disables the generator, the invert pin alters it being active high/low etc.) It's been a while since I looked, but I think it was correct. There is a physical pin that the 7i39 uses to indicate that it has faulted, and a HAL pin to echo that status, IIRC. The physical pin is an input to the FPGA 3pwmgen, the fault HAL bit is an output. Finally, just a clarification; I presume one nets the 5i20 GPIO pins defined in the 7i39 manual to the hall inputs of the bldc component. Yes, indeed. They are just input pins, so don't get given a special status by the driver. (In fact, you could use them for something else if you had a different form of motor feedback, and simply use the 7i39 for signal conditioning) -- atp Torque wrenches are for the obedience of fools and the guidance of wise men -- Get a FREE DOWNLOAD! and learn more about uberSVN rich system, user administration capabilities and model configuration. Take the hassle out of deploying and managing Subversion and the tools developers use with it. http://p.sf.net/sfu/wandisco-d2d-2 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Simodrive 611
On Thu, 2011-08-18 at 13:22 -0400, Dave wrote: I think you will probably have to order the brushes via a motor shop or directly from Siemens if they are Siemens motors.The Siemens office in Elk Grove Village, IL would probably take a credit card order over the phone if you want to buy them direct. snip Let's hope they are not as bad as Mazak. One set for almost $500. I got three sets from a custom manufacturer for less than 200. I took a quick look for a name but didn't come up with anything. All I can remember is german name worldwide company. Possibly in WI. Dave The older I get the better I used to be. ;-) -- Get a FREE DOWNLOAD! and learn more about uberSVN rich system, user administration capabilities and model configuration. Take the hassle out of deploying and managing Subversion and the tools developers use with it. http://p.sf.net/sfu/wandisco-d2d-2 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Simodrive 611
On Thu, 2011-08-18 at 15:11 -0700, dave wrote: On Thu, 2011-08-18 at 13:22 -0400, Dave wrote: I think you will probably have to order the brushes via a motor shop or directly from Siemens if they are Siemens motors.The Siemens office in Elk Grove Village, IL would probably take a credit card order over the phone if you want to buy them direct. snip Let's hope they are not as bad as Mazak. One set for almost $500. I got three sets from a custom manufacturer for less than 200. I took a quick look for a name but didn't come up with anything. All I can remember is german name worldwide company. Possibly in WI. Dave The older I get the better I used to be. ;-) Maybe? http://www.helwigcarbon.com/shop/ -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/index.html California, USA -- Get a FREE DOWNLOAD! and learn more about uberSVN rich system, user administration capabilities and model configuration. Take the hassle out of deploying and managing Subversion and the tools developers use with it. http://p.sf.net/sfu/wandisco-d2d-2 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] On the status of BLDC component and Hostmot2
On Thu, 18 Aug 2011, andy pugh wrote: Date: Thu, 18 Aug 2011 23:09:55 +0100 From: andy pugh bodge...@gmail.com 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] On the status of BLDC component and Hostmot2 On 18 August 2011 20:27, John Prentice j...@castlewd.freeserve.co.uk wrote: I suspect there could be a coding problem in 3pwmgen. The documentation and the loaded component have fault as an output pin. All the description of it suggests it should be an input (e.g. it disables the generator, the invert pin alters it being active high/low etc.) It's been a while since I looked, but I think it was correct. There is a physical pin that the 7i39 uses to indicate that it has faulted, and a HAL pin to echo that status, IIRC. The physical pin is an input to the FPGA 3pwmgen, the fault HAL bit is an output. The 7I39 doesnt use the pin but its fed through one of the sense pins I believe. The external fault input is for things like IGBT modules that have a overcurrent/overtemp fault output pin. Its a latched input (with a ~100 ns glitch filter) that turns off all PWM outputs and requires the host (EMC in this case) to react to the fault HAL pin and re-enable the outputs Peter Wallace Mesa Electronics (\__/) (='.'=) This is Bunny. Copy and paste bunny into your ()_() signature to help him gain world domination. -- Get a FREE DOWNLOAD! and learn more about uberSVN rich system, user administration capabilities and model configuration. Take the hassle out of deploying and managing Subversion and the tools developers use with it. http://p.sf.net/sfu/wandisco-d2d-2 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] driver timing settings
On 18 August 2011 18:52, For Sale Sticker e...@forsalesticker.com wrote: What should I use for the value of step Time? They are using step clock to mean the same thing, so 3000nS. However, the max pulse frequency appears to be 40kHz so the step-space is theoretically 22000nS. I don't think there is any point making it so high, though. There _is_ an advantage in setting the step-time as short as possible, as the driver spends less time twiddling its thumbs during the reset function. -- atp Torque wrenches are for the obedience of fools and the guidance of wise men -- Get a FREE DOWNLOAD! and learn more about uberSVN rich system, user administration capabilities and model configuration. Take the hassle out of deploying and managing Subversion and the tools developers use with it. http://p.sf.net/sfu/wandisco-d2d-2 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Mesa 7i43 fpga internal input pull ups - could sb synthesise another firmware for the 7i43 with pull downs for GPIO pins please ?
On 18 August 2011 19:07, Maximilian H mhemc2nos...@googlemail.com wrote: What is the procedure for synthesising my own firmware for the 7i43 ? There are some details here: http://git.linuxcnc.org/gitweb?p=hostmot2-firmware.git;a=blob;f=README;h=fb7a6d4beb756cb4c21b866c7a87d88cf7b4124a;hb=71bf0a427b77376291f4ddf638f1ce4ca83cd7a7 -- atp Torque wrenches are for the obedience of fools and the guidance of wise men -- Get a FREE DOWNLOAD! and learn more about uberSVN rich system, user administration capabilities and model configuration. Take the hassle out of deploying and managing Subversion and the tools developers use with it. http://p.sf.net/sfu/wandisco-d2d-2 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] DC Brush servo drives
On 18 August 2011 20:52, Clint Washburn cl...@clintandheidi.com wrote: I have looked at both thanks for the feedback. I am trying to weigh my options. I have a MESA 5I20 that I am currently using mostly for general I/O for the toolchanger but also planned to use it for the AXIS control. I am looking for the best bang for the buck. I am not finding very many companys that offer big enough drives for the size motors I am using. How big do you need? As you have the 5i20 I would think that a Mesa drive would integrate most neatly. The Mesa 7i29 has two 2kW / 175V channels ($299, $150 per motor) and you can connect two of them (ie 4 axes) to a single 5i20 header. -- atp Torque wrenches are for the obedience of fools and the guidance of wise men -- Get a FREE DOWNLOAD! and learn more about uberSVN rich system, user administration capabilities and model configuration. Take the hassle out of deploying and managing Subversion and the tools developers use with it. http://p.sf.net/sfu/wandisco-d2d-2 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Mesa 5i23/7i33TA servo instability question
You might check whether pncconf is producing the proper polarity in the INI file for INPUT_SCALE (for the encoder) and OUTPUT_SCALE (for the PWM servos). I believe there was a bug in an earlier version of pncconf. I ran into that and had to edit the INI file by hand to make both values negative, which was required for my setup. Karl There indeed was a bug in PNCconf that would not negate the encoder scale. That was fixed in 2.4.5 There also was a bug that would create a following error if one inverted the motor direction as it would negate the max output setting too. also fixed in 2.4.5 I asked earlier but I'm not sure you answered Scott. What version of EMC are you using? Chris M -- Get a FREE DOWNLOAD! and learn more about uberSVN rich system, user administration capabilities and model configuration. Take the hassle out of deploying and managing Subversion and the tools developers use with it. http://p.sf.net/sfu/wandisco-d2d-2 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] DC Brush servo drives
I have looked at the mesa's. I have not been exposed to them. How tenable are they? What kind of power supply do they use? Do you have an example? - Reply message - From: andy pugh bodge...@gmail.com To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net Subject: [Emc-users] DC Brush servo drives Date: Thu, Aug 18, 2011 4:05 pm On 18 August 2011 20:52, Clint Washburn cl...@clintandheidi.com wrote: I have looked at both thanks for the feedback. I am trying to weigh my options. I have a MESA 5I20 that I am currently using mostly for general I/O for the toolchanger but also planned to use it for the AXIS control. I am looking for the best bang for the buck. I am not finding very many companys that offer big enough drives for the size motors I am using. How big do you need? As you have the 5i20 I would think that a Mesa drive would integrate most neatly. The Mesa 7i29 has two 2kW / 175V channels ($299, $150 per motor) and you can connect two of them (ie 4 axes) to a single 5i20 header. -- atp Torque wrenches are for the obedience of fools and the guidance of wise men -- Get a FREE DOWNLOAD! and learn more about uberSVN rich system, user administration capabilities and model configuration. Take the hassle out of deploying and managing Subversion and the tools developers use with it. http://p.sf.net/sfu/wandisco-d2d-2 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Get a FREE DOWNLOAD! and learn more about uberSVN rich system, user administration capabilities and model configuration. Take the hassle out of deploying and managing Subversion and the tools developers use with it. http://p.sf.net/sfu/wandisco-d2d-2 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Mesa 5i23/7i33TA servo instability question
That was absolutely the bug I was hitting. After manually changing the I'm now moving forward with the PID tuning! Thanks all! Scott On Thu, Aug 18, 2011 at 8:18 PM, Scott Hasse scott.ha...@gmail.com wrote: I'm running 2.4.3 per the live CD. I'll try manually making the max output positive again manually. Scott On Thu, Aug 18, 2011 at 7:18 PM, Chris Morley chrisinnana...@hotmail.comwrote: You might check whether pncconf is producing the proper polarity in the INI file for INPUT_SCALE (for the encoder) and OUTPUT_SCALE (for the PWM servos). I believe there was a bug in an earlier version of pncconf. I ran into that and had to edit the INI file by hand to make both values negative, which was required for my setup. Karl There indeed was a bug in PNCconf that would not negate the encoder scale. That was fixed in 2.4.5 There also was a bug that would create a following error if one inverted the motor direction as it would negate the max output setting too. also fixed in 2.4.5 I asked earlier but I'm not sure you answered Scott. What version of EMC are you using? Chris M -- Get a FREE DOWNLOAD! and learn more about uberSVN rich system, user administration capabilities and model configuration. Take the hassle out of deploying and managing Subversion and the tools developers use with it. http://p.sf.net/sfu/wandisco-d2d-2 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Get a FREE DOWNLOAD! and learn more about uberSVN rich system, user administration capabilities and model configuration. Take the hassle out of deploying and managing Subversion and the tools developers use with it. http://p.sf.net/sfu/wandisco-d2d-2 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Parallel port card that just works?
Kirk, I do have the addf parport commands in there, but I'm adding
them all to the base-thread. Is this correct?
I'm using a slightly modified .hal as generated by the wizard. The
only mods I did were to some signal directions.
so:
addf parport.0.read base-thread
addf stepgen.make-pulses base-thread
addf parport.0.write base-thread
addf parport.1.read base-thread
addf parport.1.write base-thread
Andy, I followed your instructions and after a few false starts I did
get everything accepted (no commas in the loadrt hal_parport string,
weird):
halcmd: loadrt hal_parport cfg=0x378 0xa400 0xa9800
I got the following output:
[ 123.048865] config string '0,1,2'
[ 123.051023] PARPORT: ERROR: request_region(0x) failed
[ 141.272757] config string '0'
[ 141.274912] PARPORT: ERROR: linux parport 0 not found
[ 251.300431] config string '0x378, 0xa400, 0x9800'
[ 251.302588] PARPORT: ERROR: request_region(0x) failed
[ 280.524631] config string '0x378'
[ 369.520401] config string '0xa400'
[ 502.900583] config string '0x9800'
[ 520.164495] config string '0x378,0xa400'
[ 520.16] PARPORT: ERROR: request_region(0x) failed
[ 541.600434] config string '0x378,0x9800'
[ 541.602619] PARPORT: ERROR: request_region(0x) failed
[ 759.040708] config string '0x378, 0x9800'
[ 759.042869] PARPORT: ERROR: request_region(0x) failed
[ 767.392528] config string '0x378, 0xa400'
[ 767.394679] PARPORT: ERROR: request_region(0x) failed
[ 1118.600630] config string '0'
[ 1118.602793] PARPORT: ERROR: linux parport 0 not found
[ 1190.564454] config string '0xa000'
[ 1210.965000] config string '0x378, 0xa000'
[ 1210.967136] PARPORT: ERROR: request_region(0x) failed
[ 1215.168714] config string '0x378 0xa000'
[ 1402.156566] config string '0x378 0xa400 0xa9800'
If I did put the commas in the string I got a Device or Resource Busy error
halcmd: loadrt hal_parport cfg=0x378,0xa400
insmod: error inserting
'/usr/realtime-2.6.32-122-rtai/modules/emc2/hal_parport.ko': -1 Device
or resource busy
stdin:17: exit value: 1
stdin:17: insmod failed, returned -1
Thank you! You guys are running significant beer credits :-)
DougM
On Thu, Aug 18, 2011 at 4:09 AM, andy pugh bodge...@gmail.com wrote:
On 18 August 2011 03:48, doug metzler doug.metz...@gmail.com wrote:
When I first started this adventure I was following the instructions here:
http://ubuntuforums.org/showthread.php?t=1233589
and I issued these commands
$ sudo modprobe parport_pc io=0xa400
$ sudo modprobe lp
$ sudo /etc/init.d/cups restart
That all sounds a bit counterproductive, I am afraid
I have found that it can be helpful to load the bare minimum when
investigating what works.
I would open two terminal windows (which are indicated below by T1 and T2)
T1 sudo dmesg -c
T1 {password}
That clears the dmesg buffer so that you can see through the cruft.
T2 halrun
T2 loadrt hal_parport cfg=0,1,2
T2 show funct
Hopefully you should see 6 functions parport.0.read, parport.1.read,
parport.2.read, parport.0.write...
If not: T1 dmesg and read what it says.
Assuming it has all worked so far:
T2 loadrt threads
T2 addf parport.0.read thread1
T2 addf parport.1.read thread1
T2 addf parport.2.read thread1
T2 addf parport.0.write thread1
T2 addf parport.1.write thread1
T2 addf parport.2.write thread1
T2 start
(that last bit is rather important)
T1 dmesg
Now, in theory, you have your three auto-located parports linked to
HAL and running in a realtime thread. So, to see if the pins are
changing as hoped with the pendant attached:
T1 loadusr halmeter
This is the long-winded, manual way to set up HAL, but you do get to
see at what point it is failing.
The example above attempts to use parport_pc to locate the parports,
if that isn't loaded or isn't working, you can try the explicit
addresses in the loadrt hal_parport line instead of the indexes.
--
atp
Torque wrenches are for the obedience of fools and the guidance of wise men
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Re: [Emc-users] Mesa 5i23/7i33TA servo instability question
Sorry, for the record I'll try to be as clear as possible. I have confirmed the fix. When using pncconf with version 2.4.3, I needed to invert the motor signal as determined in the open loop pncconf test. This was also causing the MAX_OUTPUT parameter to be set to negative for that axis. Manually changing the ini file to have a positive MAX_OUTPUT resolved the issue. Thanks to all who helped resolve this. Scott On Thu, Aug 18, 2011 at 8:26 PM, Scott Hasse scott.ha...@gmail.com wrote: That was absolutely the bug I was hitting. After manually changing the I'm now moving forward with the PID tuning! Thanks all! Scott On Thu, Aug 18, 2011 at 8:18 PM, Scott Hasse scott.ha...@gmail.comwrote: I'm running 2.4.3 per the live CD. I'll try manually making the max output positive again manually. Scott On Thu, Aug 18, 2011 at 7:18 PM, Chris Morley chrisinnana...@hotmail.com wrote: You might check whether pncconf is producing the proper polarity in the INI file for INPUT_SCALE (for the encoder) and OUTPUT_SCALE (for the PWM servos). I believe there was a bug in an earlier version of pncconf. I ran into that and had to edit the INI file by hand to make both values negative, which was required for my setup. Karl There indeed was a bug in PNCconf that would not negate the encoder scale. That was fixed in 2.4.5 There also was a bug that would create a following error if one inverted the motor direction as it would negate the max output setting too. also fixed in 2.4.5 I asked earlier but I'm not sure you answered Scott. What version of EMC are you using? Chris M -- Get a FREE DOWNLOAD! and learn more about uberSVN rich system, user administration capabilities and model configuration. Take the hassle out of deploying and managing Subversion and the tools developers use with it. http://p.sf.net/sfu/wandisco-d2d-2 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Get a FREE DOWNLOAD! and learn more about uberSVN rich system, user administration capabilities and model configuration. Take the hassle out of deploying and managing Subversion and the tools developers use with it. http://p.sf.net/sfu/wandisco-d2d-2 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] [OT] Inventor of the robotic arm dead at 99
I remember seeing Unimates that they pulled out of a GM Assembly plant in the mid to late 1970's. They were large robots. I remember being told that they had a lot of problems with them, however I think the biggest problem was that they were way over the ability of the maintenance department to both understand and repair them. The plant engineer was very resistant to trying new things as it might risk production numbers. Dave On 8/18/2011 5:23 PM, Kent A. Reed wrote: This may not mean anything to some, but today's Washington Post contains a well-written obituary of George C. Devol, the self-taught inventor of the robotic arm that came to be known as the Ultimate. He died August 11 at his home in Connecticut. The obit contains a quote from him that reminds me of us sometimes. On subject of his lack of formal education, he said I always went into areas of industry where nobody else knew anything either. There was nowhere to go to get information, so I generated it. Regards, Kent -- Get a FREE DOWNLOAD! and learn more about uberSVN rich system, user administration capabilities and model configuration. Take the hassle out of deploying and managing Subversion and the tools developers use with it. http://p.sf.net/sfu/wandisco-d2d-2 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Get a FREE DOWNLOAD! and learn more about uberSVN rich system, user administration capabilities and model configuration. Take the hassle out of deploying and managing Subversion and the tools developers use with it. http://p.sf.net/sfu/wandisco-d2d-2 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Simodrive 611
If the motor is constructed similar to my spindle motor, there are two covers at the rear of the motor on each side.I think there are four screws holding each one on. Beneath those covers you can see the brush holders and brushes. Dave On 8/18/2011 5:31 PM, John Thornton wrote: The spindle is AFAIK 7.5hp. In some places of the drawings it says 7.5hp AC but it is clearly run by the Simodrive... I'll get up there and check the belt and look to see if I see any place where brushes might be. Thanks John On 8/18/2011 12:22 PM, Dave wrote: I think you will probably have to order the brushes via a motor shop or directly from Siemens if they are Siemens motors.The Siemens office in Elk Grove Village, IL would probably take a credit card order over the phone if you want to buy them direct. I don't know how big your spindle motor is but I think there was 24 brushes in my spindle motor.They were in 4 gangs around the commutator.They were perhaps 5/8 x 1/4 in section and probably just over an inch long. I had to pull the motor from the machine so I could get to them all. They came shrinkwrapped to a piece of cardboard, but they were sourced from the UK and I don't think they were Siemens OEM equipment.They were spares that came with the lathe. I have no idea how much they cost. If you come up short on sources I am sure that I know of a couple here in Indiana that will sell to you. I also have the source from the UK also if you need that. Dave On 8/18/2011 12:59 PM, John Thornton wrote: Yes it is a common DC drive for the spindle and all the axis. I've had a good meter on the DC buss and can not see any voltage fluctuation of any magnitude when starting up the spindle. And yes it is a 600VDC buss. I'll go for the brushes next break in the action I have... I see a bit of time to do that in about a month. Are the brushes special? Or where did you get them? Thanks for the ideas John On 8/18/2011 11:18 AM, Dave wrote: Sounds like you have a common DC bus between your spindle drive and your Z axis drive? If the DC bus dips too far, the drive will shutdown. You may want to put a meter on the DC bus and run the drives and see if the bus isn't dipping just prior to the shutdown. Make sure you use a good meter - a 400 volt AC input power supply will have about 600 volts of DC bus voltage. All drive systems have their limits. Perhaps they slightly undersized the DC power supply section on that drive system? On my lathe I have a 611 spindle drive and I was tripping the drive out frequently, I ended up pulling out the spindle motor and I replaced all of the brushes which were obviously shot, and I polished up the commutator and it now runs perfectly. I just did that a few months ago. Dave On 8/18/2011 11:29 AM, John Thornton wrote: I have a BP Discovery 308 with Simodrive 611 drives for the axis and spindle. There seems to be a broader range of drive/motor guys that follow the mailing list... so I'm posting the question here. My symptom is when I try and accellerate the spindle from 0 to2400 rpm in one step the drive faults out with a generic fault. Sometimes when running the mill at 6000 RPM for a while (so good and warm) a Rapid Z up will give the same fault. I can ramp up to 6000 RPM by starting at 2000 RPM using 100 RPM increments with a G4 of 0.1 between. I've opened up the power supply section and replaced all the caps recently and that did not have any effect on the symptom. Would there be any reason to dig into the spindle and try and check the brushes? Thanks John -- Get a FREE DOWNLOAD! and learn more about uberSVN rich system, user administration capabilities and model configuration. Take the hassle out of deploying and managing Subversion and the tools developers use with it. http://p.sf.net/sfu/wandisco-d2d-2 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Get a FREE DOWNLOAD! and learn more about uberSVN rich system, user administration capabilities and model configuration. Take the hassle out of deploying and managing Subversion and the tools developers use with it. http://p.sf.net/sfu/wandisco-d2d-2 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Get a FREE DOWNLOAD! and learn more about uberSVN rich system, user administration capabilities and model configuration. Take the hassle out of deploying and managing Subversion and the tools developers use with it.
Re: [Emc-users] Mesa 5i23/7i33TA servo instability question
Sorry, for the record I'll try to be as clear as possible. I have confirmed the fix. When using pncconf with version 2.4.3, I needed to invert the motor signal as determined in the open loop pncconf test. This was also causing the MAX_OUTPUT parameter to be set to negative for that axis. Manually changing the ini file to have a positive MAX_OUTPUT resolved the issue. Thanks to all who helped resolve this. Glad you got it Scott and sorry PNCconf sent you down the river without a paddle - though you are using a pretty old version. one pretty painless way to use a more current version is to use the buildbot. http://buildbot.linuxcnc.org/ There you can get the latest bug fixes for your current version (2.4.7 actually not released yet) or you could checkout the soon to be released 2.5 version. Chris M -- Get a FREE DOWNLOAD! and learn more about uberSVN rich system, user administration capabilities and model configuration. Take the hassle out of deploying and managing Subversion and the tools developers use with it. http://p.sf.net/sfu/wandisco-d2d-2 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
