Re: [Emc-users] Servo Drive (For Sale?)
So, I popped the cover off to see what's inside. All of the io, and I am guessing all off the digital control side of the drive is on a single board that plugs into the amp part. I am guessing that similar models with different control options just plunged in a different board. (Any one have a buggered up AMC DR100EE drive for parts?) I wonder what would be the chances it might work with an encoder signal plugged into the encoder outputs? Probably not since the data sheet said that those are optically isolated. - Original Message - From: Jon Elson el...@pico-systems.com To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net Sent: Tuesday, June 9, 2015 10:03:49 AM Subject: Re: [Emc-users] Servo Drive (For Sale?) On 06/09/2015 08:26 AM, Andy Pugh wrote: On 9 Jun 2015, at 13:17, Todd Zuercher zuerc...@embarqmail.com wrote: So unless any one has a simple solution to make this drive work, Pico have a resolver to quadrature converter. And, that is the wrong direction. His drive needs a resolver signal. I wonder if there is a resolver option board that can just be unplugged from the drive? Jon -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Servo Drive (For Sale?)
Problem with AMC drives is that they scrub the part numbers off of the chips, so it's really hard to tell what's going on. I would guess they don't have such a board, but it would be worth checking On Tue, Jun 9, 2015 at 10:03 AM, Jon Elson el...@pico-systems.com wrote: On 06/09/2015 08:26 AM, Andy Pugh wrote: On 9 Jun 2015, at 13:17, Todd Zuercher zuerc...@embarqmail.com wrote: So unless any one has a simple solution to make this drive work, Pico have a resolver to quadrature converter. And, that is the wrong direction. His drive needs a resolver signal. I wonder if there is a resolver option board that can just be unplugged from the drive? Jon -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Servo Drive (For Sale?)
On 06/09/2015 08:26 AM, Andy Pugh wrote: On 9 Jun 2015, at 13:17, Todd Zuercher zuerc...@embarqmail.com wrote: So unless any one has a simple solution to make this drive work, Pico have a resolver to quadrature converter. And, that is the wrong direction. His drive needs a resolver signal. I wonder if there is a resolver option board that can just be unplugged from the drive? Jon -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Servo Drive (For Sale?)
Sorry to leave that out, I'm in Ohio, USA. - Original Message - From: Viesturs Lācis viesturs.la...@gmail.com To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net Sent: Tuesday, June 9, 2015 9:33:58 AM Subject: Re: [Emc-users] Servo Drive (For Sale?) Which corner of the globe are you from? Viesturs 2015-06-09 15:17 GMT+03:00 Todd Zuercher zuerc...@embarqmail.com: I bought an AMC servo drive off ebay for a project I'm working on. Problem is I didn't pay close enough attention to it's part number (DR100RE30A40NDCC) and missed the fact that it is for resolver feedback instead of an encoder. I just wanted a digitally controled drive with encoder feed back to run a brush DC servo. So unless any one has a simple solution to make this drive work, I'll offer it for sale for what I got it off ebay for ($40) plus shipping cost. -- Todd Zuercher mailto:zuerc...@embarqmail.com -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Servo Drive (For Sale?)
I was taking a closer look at the data sheet from AMC. http://www.a-m-c.com/download/datasheet/dr100re30a40ndc.pdf Now I am not sure if maybe it couldn't still work with just an encoder. In the description of the programmable digital inputs it said 2 programmable differential inputs, configurable as step direction, master encoder, or secondary encoder for dual loop operation. So maybe I might be able to configure it to ignore the resolver, (especially since I don't need any comutation feedback). A call to AMC might be warranted. Anyone have any experince dealing with these guys, will they talk to you? - Original Message - From: Todd Zuercher zuerc...@embarqmail.com To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net Sent: Tuesday, June 9, 2015 8:17:57 AM Subject: Servo Drive (For Sale?) I bought an AMC servo drive off ebay for a project I'm working on. Problem is I didn't pay close enough attention to it's part number (DR100RE30A40NDCC) and missed the fact that it is for resolver feedback instead of an encoder. I just wanted a digitally controled drive with encoder feed back to run a brush DC servo. So unless any one has a simple solution to make this drive work, I'll offer it for sale for what I got it off ebay for ($40) plus shipping cost. -- Todd Zuercher mailto:zuerc...@embarqmail.com -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] Servo Drive (For Sale?)
I bought an AMC servo drive off ebay for a project I'm working on. Problem is I didn't pay close enough attention to it's part number (DR100RE30A40NDCC) and missed the fact that it is for resolver feedback instead of an encoder. I just wanted a digitally controled drive with encoder feed back to run a brush DC servo. So unless any one has a simple solution to make this drive work, I'll offer it for sale for what I got it off ebay for ($40) plus shipping cost. -- Todd Zuercher mailto:zuerc...@embarqmail.com -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Servo Drive (For Sale?)
On 9 Jun 2015, at 13:17, Todd Zuercher zuerc...@embarqmail.com wrote: So unless any one has a simple solution to make this drive work, Pico have a resolver to quadrature converter. -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Servo Drive (For Sale?)
Which corner of the globe are you from? Viesturs 2015-06-09 15:17 GMT+03:00 Todd Zuercher zuerc...@embarqmail.com: I bought an AMC servo drive off ebay for a project I'm working on. Problem is I didn't pay close enough attention to it's part number (DR100RE30A40NDCC) and missed the fact that it is for resolver feedback instead of an encoder. I just wanted a digitally controled drive with encoder feed back to run a brush DC servo. So unless any one has a simple solution to make this drive work, I'll offer it for sale for what I got it off ebay for ($40) plus shipping cost. -- Todd Zuercher mailto:zuerc...@embarqmail.com -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Servo Drive Help?
These guys should have a drive that can control that motor without a separate power supply. I used 2 drives from this company on a CNC machine last year with older brushed motors and they worked fine. http://www.a-m-c.com/products/analog_brushless.html They have AC in, DC out drives for brushed motors with encoders.. Dave On 2/10/2015 8:43 AM, Todd Zuercher wrote: I was hopping I could reuse the old since it didn't require a DC power supply, it has a built in rectifier and used 90v AC. Most DC servo amps for sale on flea-bay I'll have to make or buy a DC power supply for. The motor is 370w 90vcc 4.5A 3400rpm DC brush. I am pretty sure it's permanent magnet. It has a 500 line encoder. - Original Message - From: Karlsson Wang nicklas.karls...@karlssonwang.se To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net Sent: Monday, February 9, 2015 4:26:26 PM Subject: Re: [Emc-users] Servo Drive Help? Sounds like a very good idea. On Sat, 07 Feb 2015 09:41:48 -0500 Dave Cole linuxcncro...@gmail.com wrote: I would work at the problem from the motor perspective and forget about the drive maker. Do you have the motor specs? Is it a permanent magnet brushed motor? Dave On 2/6/2015 3:32 PM, Todd Zuercher wrote: Well, this is a little excessive, it has been about 2years since I last tried to contact them, and about 6 since the first time (with a number of tries in between). I think it is safe to assume I am being officially (and quite effectively) ignored. - Original Message - From: Viesturs Lācis viesturs.la...@gmail.com To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net Sent: Friday, February 6, 2015 8:15:20 AM Subject: Re: [Emc-users] Servo Drive Help? 2015-02-05 18:06 GMT+02:00 Todd Zuercher zuerc...@embarqmail.com: Does anyone know anything about one of these drives? http://www.easys.it/prod_file/azionamento_dc_ind.pdf I don't know Italian, and I have not been able to get any email response from the drive's manufacturer. Don't worry, that is common practice in italian companies. Last summer it took me 2 _months_ to get a correct invoice from Elte to purchase 3 standard spindle motors, it has been 2 or 3 weeks since I am waiting for a price quote for torque limiter - they replied quickly, asking additional details about my company, sent them everything and now they are gone. No offence to Alex and possibly any other italians on this list, but I have not seen for myself or heard about any italian company with prompt customer service. Viesturs -- Dive into the World of Parallel Programming. The Go Parallel Website, sponsored by Intel and developed in partnership with Slashdot Media, is your hub for all things parallel software development, from weekly thought leadership blogs to news, videos, case studies, tutorials and more. Take a look and join the conversation now. http://goparallel.sourceforge.net/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Dive into the World of Parallel Programming. The Go Parallel Website, sponsored by Intel and developed in partnership with Slashdot Media, is your hub for all things parallel software development, from weekly thought leadership blogs to news, videos, case studies, tutorials and more. Take a look and join the conversation now. http://goparallel.sourceforge.net/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users --- This email has been checked for viruses by Avast antivirus software. http://www.avast.com -- Dive into the World of Parallel Programming. The Go Parallel Website, sponsored by Intel and developed in partnership with Slashdot Media, is your hub for all things parallel software development, from weekly thought leadership blogs to news, videos, case studies, tutorials and more. Take a look and join the conversation now. http://goparallel.sourceforge.net/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Dive into the World of Parallel Programming. The Go Parallel Website, sponsored by Intel and developed in partnership with Slashdot Media, is your hub for all things parallel software development, from weekly thought leadership blogs to news, videos, case studies, tutorials and more. Take a look and join the conversation now. http
Re: [Emc-users] Servo Drive Help?
I was hopping I could reuse the old since it didn't require a DC power supply, it has a built in rectifier and used 90v AC. Most DC servo amps for sale on flea-bay I'll have to make or buy a DC power supply for. The motor is 370w 90vcc 4.5A 3400rpm DC brush. I am pretty sure it's permanent magnet. It has a 500 line encoder. - Original Message - From: Karlsson Wang nicklas.karls...@karlssonwang.se To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net Sent: Monday, February 9, 2015 4:26:26 PM Subject: Re: [Emc-users] Servo Drive Help? Sounds like a very good idea. On Sat, 07 Feb 2015 09:41:48 -0500 Dave Cole linuxcncro...@gmail.com wrote: I would work at the problem from the motor perspective and forget about the drive maker. Do you have the motor specs? Is it a permanent magnet brushed motor? Dave On 2/6/2015 3:32 PM, Todd Zuercher wrote: Well, this is a little excessive, it has been about 2years since I last tried to contact them, and about 6 since the first time (with a number of tries in between). I think it is safe to assume I am being officially (and quite effectively) ignored. - Original Message - From: Viesturs Lācis viesturs.la...@gmail.com To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net Sent: Friday, February 6, 2015 8:15:20 AM Subject: Re: [Emc-users] Servo Drive Help? 2015-02-05 18:06 GMT+02:00 Todd Zuercher zuerc...@embarqmail.com: Does anyone know anything about one of these drives? http://www.easys.it/prod_file/azionamento_dc_ind.pdf I don't know Italian, and I have not been able to get any email response from the drive's manufacturer. Don't worry, that is common practice in italian companies. Last summer it took me 2 _months_ to get a correct invoice from Elte to purchase 3 standard spindle motors, it has been 2 or 3 weeks since I am waiting for a price quote for torque limiter - they replied quickly, asking additional details about my company, sent them everything and now they are gone. No offence to Alex and possibly any other italians on this list, but I have not seen for myself or heard about any italian company with prompt customer service. Viesturs -- Dive into the World of Parallel Programming. The Go Parallel Website, sponsored by Intel and developed in partnership with Slashdot Media, is your hub for all things parallel software development, from weekly thought leadership blogs to news, videos, case studies, tutorials and more. Take a look and join the conversation now. http://goparallel.sourceforge.net/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Dive into the World of Parallel Programming. The Go Parallel Website, sponsored by Intel and developed in partnership with Slashdot Media, is your hub for all things parallel software development, from weekly thought leadership blogs to news, videos, case studies, tutorials and more. Take a look and join the conversation now. http://goparallel.sourceforge.net/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users --- This email has been checked for viruses by Avast antivirus software. http://www.avast.com -- Dive into the World of Parallel Programming. The Go Parallel Website, sponsored by Intel and developed in partnership with Slashdot Media, is your hub for all things parallel software development, from weekly thought leadership blogs to news, videos, case studies, tutorials and more. Take a look and join the conversation now. http://goparallel.sourceforge.net/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Dive into the World of Parallel Programming. The Go Parallel Website, sponsored by Intel and developed in partnership with Slashdot Media, is your hub for all things parallel software development, from weekly thought leadership blogs to news, videos, case studies, tutorials and more. Take a look and join the conversation now. http://goparallel.sourceforge.net/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Dive into the World of Parallel Programming. The Go Parallel Website, sponsored by Intel
Re: [Emc-users] Servo Drive Help?
I soldered my own inverter partly since I did not find a servo driver without AC rectifier. With a separate rectifier I may adjust the DC voltage to what is needed for the particular motor. I also expect it to be cheaper design solution with one large rectifier for several inverters instead of several small rectifiers. Regards Nicklas Karlsson On Tue, 10 Feb 2015 08:43:51 -0500 (EST) Todd Zuercher zuerc...@embarqmail.com wrote: I was hopping I could reuse the old since it didn't require a DC power supply, it has a built in rectifier and used 90v AC. Most DC servo amps for sale on flea-bay I'll have to make or buy a DC power supply for. The motor is 370w 90vcc 4.5A 3400rpm DC brush. I am pretty sure it's permanent magnet. It has a 500 line encoder. - Original Message - From: Karlsson Wang nicklas.karls...@karlssonwang.se To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net Sent: Monday, February 9, 2015 4:26:26 PM Subject: Re: [Emc-users] Servo Drive Help? Sounds like a very good idea. On Sat, 07 Feb 2015 09:41:48 -0500 Dave Cole linuxcncro...@gmail.com wrote: I would work at the problem from the motor perspective and forget about the drive maker. Do you have the motor specs? Is it a permanent magnet brushed motor? Dave On 2/6/2015 3:32 PM, Todd Zuercher wrote: Well, this is a little excessive, it has been about 2years since I last tried to contact them, and about 6 since the first time (with a number of tries in between). I think it is safe to assume I am being officially (and quite effectively) ignored. - Original Message - From: Viesturs Lācis viesturs.la...@gmail.com To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net Sent: Friday, February 6, 2015 8:15:20 AM Subject: Re: [Emc-users] Servo Drive Help? 2015-02-05 18:06 GMT+02:00 Todd Zuercher zuerc...@embarqmail.com: Does anyone know anything about one of these drives? http://www.easys.it/prod_file/azionamento_dc_ind.pdf I don't know Italian, and I have not been able to get any email response from the drive's manufacturer. Don't worry, that is common practice in italian companies. Last summer it took me 2 _months_ to get a correct invoice from Elte to purchase 3 standard spindle motors, it has been 2 or 3 weeks since I am waiting for a price quote for torque limiter - they replied quickly, asking additional details about my company, sent them everything and now they are gone. No offence to Alex and possibly any other italians on this list, but I have not seen for myself or heard about any italian company with prompt customer service. Viesturs -- Dive into the World of Parallel Programming. The Go Parallel Website, sponsored by Intel and developed in partnership with Slashdot Media, is your hub for all things parallel software development, from weekly thought leadership blogs to news, videos, case studies, tutorials and more. Take a look and join the conversation now. http://goparallel.sourceforge.net/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Dive into the World of Parallel Programming. The Go Parallel Website, sponsored by Intel and developed in partnership with Slashdot Media, is your hub for all things parallel software development, from weekly thought leadership blogs to news, videos, case studies, tutorials and more. Take a look and join the conversation now. http://goparallel.sourceforge.net/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users --- This email has been checked for viruses by Avast antivirus software. http://www.avast.com -- Dive into the World of Parallel Programming. The Go Parallel Website, sponsored by Intel and developed in partnership with Slashdot Media, is your hub for all things parallel software development, from weekly thought leadership blogs to news, videos, case studies, tutorials and more. Take a look and join the conversation now. http://goparallel.sourceforge.net/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Dive into the World of Parallel Programming. The Go Parallel Website, sponsored by Intel and developed in partnership
Re: [Emc-users] Servo Drive Help?
Sounds like a very good idea. On Sat, 07 Feb 2015 09:41:48 -0500 Dave Cole linuxcncro...@gmail.com wrote: I would work at the problem from the motor perspective and forget about the drive maker. Do you have the motor specs? Is it a permanent magnet brushed motor? Dave On 2/6/2015 3:32 PM, Todd Zuercher wrote: Well, this is a little excessive, it has been about 2years since I last tried to contact them, and about 6 since the first time (with a number of tries in between). I think it is safe to assume I am being officially (and quite effectively) ignored. - Original Message - From: Viesturs Lācis viesturs.la...@gmail.com To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net Sent: Friday, February 6, 2015 8:15:20 AM Subject: Re: [Emc-users] Servo Drive Help? 2015-02-05 18:06 GMT+02:00 Todd Zuercher zuerc...@embarqmail.com: Does anyone know anything about one of these drives? http://www.easys.it/prod_file/azionamento_dc_ind.pdf I don't know Italian, and I have not been able to get any email response from the drive's manufacturer. Don't worry, that is common practice in italian companies. Last summer it took me 2 _months_ to get a correct invoice from Elte to purchase 3 standard spindle motors, it has been 2 or 3 weeks since I am waiting for a price quote for torque limiter - they replied quickly, asking additional details about my company, sent them everything and now they are gone. No offence to Alex and possibly any other italians on this list, but I have not seen for myself or heard about any italian company with prompt customer service. Viesturs -- Dive into the World of Parallel Programming. The Go Parallel Website, sponsored by Intel and developed in partnership with Slashdot Media, is your hub for all things parallel software development, from weekly thought leadership blogs to news, videos, case studies, tutorials and more. Take a look and join the conversation now. http://goparallel.sourceforge.net/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Dive into the World of Parallel Programming. The Go Parallel Website, sponsored by Intel and developed in partnership with Slashdot Media, is your hub for all things parallel software development, from weekly thought leadership blogs to news, videos, case studies, tutorials and more. Take a look and join the conversation now. http://goparallel.sourceforge.net/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users --- This email has been checked for viruses by Avast antivirus software. http://www.avast.com -- Dive into the World of Parallel Programming. The Go Parallel Website, sponsored by Intel and developed in partnership with Slashdot Media, is your hub for all things parallel software development, from weekly thought leadership blogs to news, videos, case studies, tutorials and more. Take a look and join the conversation now. http://goparallel.sourceforge.net/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Dive into the World of Parallel Programming. The Go Parallel Website, sponsored by Intel and developed in partnership with Slashdot Media, is your hub for all things parallel software development, from weekly thought leadership blogs to news, videos, case studies, tutorials and more. Take a look and join the conversation now. http://goparallel.sourceforge.net/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Servo Drive Help?
I would work at the problem from the motor perspective and forget about the drive maker. Do you have the motor specs? Is it a permanent magnet brushed motor? Dave On 2/6/2015 3:32 PM, Todd Zuercher wrote: Well, this is a little excessive, it has been about 2years since I last tried to contact them, and about 6 since the first time (with a number of tries in between). I think it is safe to assume I am being officially (and quite effectively) ignored. - Original Message - From: Viesturs Lācis viesturs.la...@gmail.com To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net Sent: Friday, February 6, 2015 8:15:20 AM Subject: Re: [Emc-users] Servo Drive Help? 2015-02-05 18:06 GMT+02:00 Todd Zuercher zuerc...@embarqmail.com: Does anyone know anything about one of these drives? http://www.easys.it/prod_file/azionamento_dc_ind.pdf I don't know Italian, and I have not been able to get any email response from the drive's manufacturer. Don't worry, that is common practice in italian companies. Last summer it took me 2 _months_ to get a correct invoice from Elte to purchase 3 standard spindle motors, it has been 2 or 3 weeks since I am waiting for a price quote for torque limiter - they replied quickly, asking additional details about my company, sent them everything and now they are gone. No offence to Alex and possibly any other italians on this list, but I have not seen for myself or heard about any italian company with prompt customer service. Viesturs -- Dive into the World of Parallel Programming. The Go Parallel Website, sponsored by Intel and developed in partnership with Slashdot Media, is your hub for all things parallel software development, from weekly thought leadership blogs to news, videos, case studies, tutorials and more. Take a look and join the conversation now. http://goparallel.sourceforge.net/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Dive into the World of Parallel Programming. The Go Parallel Website, sponsored by Intel and developed in partnership with Slashdot Media, is your hub for all things parallel software development, from weekly thought leadership blogs to news, videos, case studies, tutorials and more. Take a look and join the conversation now. http://goparallel.sourceforge.net/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users --- This email has been checked for viruses by Avast antivirus software. http://www.avast.com -- Dive into the World of Parallel Programming. The Go Parallel Website, sponsored by Intel and developed in partnership with Slashdot Media, is your hub for all things parallel software development, from weekly thought leadership blogs to news, videos, case studies, tutorials and more. Take a look and join the conversation now. http://goparallel.sourceforge.net/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Servo Drive Help?
Well, this is a little excessive, it has been about 2years since I last tried to contact them, and about 6 since the first time (with a number of tries in between). I think it is safe to assume I am being officially (and quite effectively) ignored. - Original Message - From: Viesturs Lācis viesturs.la...@gmail.com To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net Sent: Friday, February 6, 2015 8:15:20 AM Subject: Re: [Emc-users] Servo Drive Help? 2015-02-05 18:06 GMT+02:00 Todd Zuercher zuerc...@embarqmail.com: Does anyone know anything about one of these drives? http://www.easys.it/prod_file/azionamento_dc_ind.pdf I don't know Italian, and I have not been able to get any email response from the drive's manufacturer. Don't worry, that is common practice in italian companies. Last summer it took me 2 _months_ to get a correct invoice from Elte to purchase 3 standard spindle motors, it has been 2 or 3 weeks since I am waiting for a price quote for torque limiter - they replied quickly, asking additional details about my company, sent them everything and now they are gone. No offence to Alex and possibly any other italians on this list, but I have not seen for myself or heard about any italian company with prompt customer service. Viesturs -- Dive into the World of Parallel Programming. The Go Parallel Website, sponsored by Intel and developed in partnership with Slashdot Media, is your hub for all things parallel software development, from weekly thought leadership blogs to news, videos, case studies, tutorials and more. Take a look and join the conversation now. http://goparallel.sourceforge.net/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Dive into the World of Parallel Programming. The Go Parallel Website, sponsored by Intel and developed in partnership with Slashdot Media, is your hub for all things parallel software development, from weekly thought leadership blogs to news, videos, case studies, tutorials and more. Take a look and join the conversation now. http://goparallel.sourceforge.net/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Servo Drive Help?
2015-02-05 18:06 GMT+02:00 Todd Zuercher zuerc...@embarqmail.com: Does anyone know anything about one of these drives? http://www.easys.it/prod_file/azionamento_dc_ind.pdf I don't know Italian, and I have not been able to get any email response from the drive's manufacturer. Don't worry, that is common practice in italian companies. Last summer it took me 2 _months_ to get a correct invoice from Elte to purchase 3 standard spindle motors, it has been 2 or 3 weeks since I am waiting for a price quote for torque limiter - they replied quickly, asking additional details about my company, sent them everything and now they are gone. No offence to Alex and possibly any other italians on this list, but I have not seen for myself or heard about any italian company with prompt customer service. Viesturs -- Dive into the World of Parallel Programming. The Go Parallel Website, sponsored by Intel and developed in partnership with Slashdot Media, is your hub for all things parallel software development, from weekly thought leadership blogs to news, videos, case studies, tutorials and more. Take a look and join the conversation now. http://goparallel.sourceforge.net/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] Servo Drive Help?
Does anyone know anything about one of these drives? http://www.easys.it/prod_file/azionamento_dc_ind.pdf I don't know Italian, and I have not been able to get any email response from the drive's manufacturer. I have one that was used to run a servo saw stop/pusher system. It's control died and I would love to be able to revive it using Linuxcnc. The stop manufacturer wasn't much more help but at least they would talk to me. They sent me a pdf for the machines schematics but were unable to provide any information on how to control the drive. I started a thread on the forum where I was able to post a copy of the schematics the stop's manufacturer sent me. http://linuxcnc.org/index.php/english/forum/27-driver-boards/28847-help-with-servo-drive#55722 What would I need to know in order to use the RS-485 to control this, and any ideas where or how to glean it? -- Todd Zuercher mailto:zuerc...@embarqmail.com -- Dive into the World of Parallel Programming. The Go Parallel Website, sponsored by Intel and developed in partnership with Slashdot Media, is your hub for all things parallel software development, from weekly thought leadership blogs to news, videos, case studies, tutorials and more. Take a look and join the conversation now. http://goparallel.sourceforge.net/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Servo Drive Help?
Hi Todd. I'm italian but I don't know anything about this drive. The manufacturer company is small and the product seem to be a sort of custom made (maybe for the stop manufacturer) . The documentation pdf that you posted is not sufficient to understand how to connect properly the drive. The rs-485 serial line maybe it's not a modbus compliant communication. The drive should have a +/-10Vdc command voltage (speed command control) but you need to understand if the dc motor have a tachometer for the speed feedback or the motor is controlled for the speed loop using the encoder showed on the electrical drawing . The drive documentation is just a concise information about it , not really usable. The only chance that you have is to try to contact again the Easys (drive manufacturer) in order to get the complete documentation (if it really exist) . Alex On Thu, Feb 5, 2015 at 5:06 PM, Todd Zuercher zuerc...@embarqmail.com wrote: Does anyone know anything about one of these drives? http://www.easys.it/prod_file/azionamento_dc_ind.pdf I don't know Italian, and I have not been able to get any email response from the drive's manufacturer. I have one that was used to run a servo saw stop/pusher system. It's control died and I would love to be able to revive it using Linuxcnc. The stop manufacturer wasn't much more help but at least they would talk to me. They sent me a pdf for the machines schematics but were unable to provide any information on how to control the drive. I started a thread on the forum where I was able to post a copy of the schematics the stop's manufacturer sent me. http://linuxcnc.org/index.php/english/forum/27-driver-boards/28847-help-with-servo-drive#55722 What would I need to know in order to use the RS-485 to control this, and any ideas where or how to glean it? -- Todd Zuercher mailto:zuerc...@embarqmail.com -- Dive into the World of Parallel Programming. The Go Parallel Website, sponsored by Intel and developed in partnership with Slashdot Media, is your hub for all things parallel software development, from weekly thought leadership blogs to news, videos, case studies, tutorials and more. Take a look and join the conversation now. http://goparallel.sourceforge.net/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Dive into the World of Parallel Programming. The Go Parallel Website, sponsored by Intel and developed in partnership with Slashdot Media, is your hub for all things parallel software development, from weekly thought leadership blogs to news, videos, case studies, tutorials and more. Take a look and join the conversation now. http://goparallel.sourceforge.net/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] Servo drive question
Hello! I have a question about motor position feedback to this servo drive: http://www.zappautomation.co.uk/en/cd-range/322-cd420-0075-0039-aa-000.html Its manual is available here: http://www.zappautomation.co.uk/en/attachment.php?id_attachment=57 The thing is that page 20 lists pin names on the connector, where encoder feedback is supposed to be attached: phase-A, phase-B, phase-Z, phase-U, phase-V, phase-W. A and B are both quadrature channels, Z is index. What is U, V and W? It does not mention Hall sensors anywhere in the manual. And page 90 has tech specs table, where is a line Feedback signal and it only mentions 2500 PPR incremental encoder. And nothing else. I would appreciate any reasonable suggestions, what are those U,V and W signals from encoders! :) Thanks! -- Viesturs -- Get 100% visibility into Java/.NET code with AppDynamics Lite! It's a free troubleshooting tool designed for production. Get down to code-level detail for bottlenecks, with 2% overhead. Download for free and get started troubleshooting in minutes. http://pubads.g.doubleclick.net/gampad/clk?id=48897031iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Servo drive question
On 14 August 2013 17:43, Viesturs Lācis viesturs.la...@gmail.com wrote: I would appreciate any reasonable suggestions, what are those U,V and W signals from encoders! :) Almost certainly commutation signals for the drive. There are quite a few 6-channel encoders out there (often called commutation encoders) They are extra encoder tracks rather than actual Hall sensors. (and you need to either get the right one, or program them for the motor pole count). -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto -- Get 100% visibility into Java/.NET code with AppDynamics Lite! It's a free troubleshooting tool designed for production. Get down to code-level detail for bottlenecks, with 2% overhead. Download for free and get started troubleshooting in minutes. http://pubads.g.doubleclick.net/gampad/clk?id=48897031iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] Servo drive with resolver input
Hello! I would appreciate any links for servo drives with resolver feedback. Motor is brushless DC, rated at 330 V and 1,3 A. Intended to be used with LinuxCNC, so simulated encoder output and +/- 10V analog input would be nice. Price is a significant factor at this moment, so I expect to be looking at manufacturers in china. Thanks in advance! -- Viesturs If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto -- See everything from the browser to the database with AppDynamics Get end-to-end visibility with application monitoring from AppDynamics Isolate bottlenecks and diagnose root cause in seconds. Start your free trial of AppDynamics Pro today! http://pubads.g.doubleclick.net/gampad/clk?id=48808831iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Servo drive?
2012/1/11 andy pugh bodge...@gmail.com: On 11 January 2012 11:58, Viesturs Lācis viesturs.la...@gmail.com wrote: http://docs-europe.electrocomponents.com/webdocs/0dca/0900766b80dca34c.pdf On page nr 9 I found a scheme of Typical application connection. Do I understand correctly that anything within the blue frame already is on that board? Yes. I would suggest opto-isolators between the IRAMS and the 5i23 or whatever, though. Anyone willing to consult me? I made mine do this: https://picasaweb.google.com/108164504656404380542/Gibbs#5469721364857131746 So might not be the ideal consultant Mk2 had heatsinking, but I think that died too: https://picasaweb.google.com/108164504656404380542/Gibbs#5471910659108799346 I can't recally if it was just the surge-limiter that went, or if it died completely when I was trying to use it as a VFD with an ordinary induction motor. Ok, I think that I finally got it - the heatsink is under the board and only its very black side can be seen... At least I think so after taking a look at next picture, which shows the board from bottom (and without heatsink I suppose). How big was that motor? Should something be differently with AC servo motor? I am not sure anymore that I do understand, what is inside AC servo motor. Normal DC brushless motors have permanent magnets, but I have difficulties understanding, how AC servo drives work (the fact that it still supplies DC to motors is confusing me), so I am not sure anymore that AC servo motors are synchronous electrical motors with permanent magnets. What is the rated voltage of Your rectifier bridge? Yesterday I had a discussion with an electronics guy and he told me, that rectifier bridge should not get warm at all - if that is happening, there is something wrong - either connections, either rated voltage too low and it basically should already be damaged... BTW did You have something for the current sensing and over-current sense? I suspect I would not need current feedback to EMC, because it will have resolver/ encoder data, but I suppose over-current signal could be used as a fault signal. I also wanted to ask about GND in the schematics in page 9 of the datasheet: http://docs-europe.electrocomponents.com/webdocs/0dca/0900766b80dca34c.pdf If I understand correctly, then V+ is the place to connect + from power supply, but I do not see GND connected to that chip anywhere. Ok, maybe it does not need GND for motor power, but I suspect there should be something, to which the incoming PWM signals are referenced to. Andy, I also would like to ask, if You could share the scheme layout and list of components that You used with that IRAMS chip, it really seems that I might try to build something. 2012/1/11 andy pugh bodge...@gmail.com: On 11 January 2012 14:11, Viesturs Lācis viesturs.la...@gmail.com wrote: BTW I was warned that there should be considered protection for the board from overvoltages, coming from motors. Is that correct and how is that usually implemented? Freewheeling diodes. You can see one across every power stage in the H-bridge. Effectively there is a 3-phase bridge-rectifier built into the H-bridge, and any voltages bus voltage are shuttled into the bus caps. Those need to be big enough to absorb the current without pushing the voltage too high. Thanks for the explanation, but I do not get, where to look for them? :) Do You mean the schematics in the manual? Viesturs -- RSA(R) Conference 2012 Mar 27 - Feb 2 Save $400 by Jan. 27 Register now! http://p.sf.net/sfu/rsa-sfdev2dev2 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Servo drive?
On 12 January 2012 11:49, Viesturs Lācis viesturs.la...@gmail.com wrote: Ok, I think that I finally got it - the heatsink is under the board and only its very black side can be seen... Yes, that was the main change. How big was that motor? It was a 2HP motor. On reflection, I probably drained the capacitor and then bad things happened. I am not sure anymore that I do understand, what is inside AC servo motor. Normal DC brushless motors have permanent magnets, Many AC servos are identical in construction to brushless DC motors. There is a class of motor which is a true AC induction servo motor, but they are very rare now. http://en.wikipedia.org/wiki/AC_motor#Two-phase_AC_servo_motors Any AC servo motor you find on eBay will be basically a brushless motor with an encoder. What is the rated voltage of Your rectifier bridge? Yesterday I had a discussion with an electronics guy and he told me, that rectifier bridge should not get warm at all It didn't, but it had a mounting tab so it was convenient to bolt it to the heatsink too. BTW did You have something for the current sensing and over-current sense? I think I just put in the minimal components to make it wake up. I also wanted to ask about GND in the schematics in page 9 of the datasheet: http://docs-europe.electrocomponents.com/webdocs/0dca/0900766b80dca34c.pdf If I understand correctly, then V+ is the place to connect + from power supply, but I do not see GND connected to that chip anywhere. Ok, maybe it does not need GND for motor power, but I suspect there should be something, to which the incoming PWM signals are referenced to. The gates are AC-coupled through capacitors. So, DC power supply voltage is connected to V+ and the PSU gnd to the three VR(U/V/W) lines. Typically through current-monitoring shunt resistors. Some variants of the IRAMS chips have the shunt resistors built in. Vss is the logic ground. http://en.wikipedia.org/wiki/IC_power_supply_pin I don't think you want to connect the logic and PSU grounds in this case, especially if VR is rectified mains. That might actually be where I went wrong, on reflection. Can I suggest getting advice from someone with half a clue, rather than me? (Freewheel diodes) Thanks for the explanation, but I do not get, where to look for them? :) Yes, on the datasheet, each of the 6 IGBTs has a diode in parallel with it. -- atp The idea that there is no such thing as objective truth is, quite simply, wrong. -- RSA(R) Conference 2012 Mar 27 - Feb 2 Save $400 by Jan. 27 Register now! http://p.sf.net/sfu/rsa-sfdev2dev2 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Servo drive?
2012/1/12 andy pugh bodge...@gmail.com: On 12 January 2012 11:49, Viesturs Lācis viesturs.la...@gmail.com wrote: How big was that motor? It was a 2HP motor. On reflection, I probably drained the capacitor and then bad things happened. How do I determine, what size capacitors should be used? Right on the rectifier and also for those boot-strap capacitors? BTW did You have something for the current sensing and over-current sense? I think I just put in the minimal components to make it wake up. What is that on the upper right corner? https://picasaweb.google.com/108164504656404380542/Gibbs#5471910659108799346 The gates are AC-coupled through capacitors. So, DC power supply voltage is connected to V+ and the PSU gnd to the three VR(U/V/W) lines. Typically through current-monitoring shunt resistors. Some variants of the IRAMS chips have the shunt resistors built in. Ok, thanks, now it makes sense! Do I need those shunt resistors for normal operation of the chip or are they meant just for feedback to controller? Vss is the logic ground. Ok, great! Is it supposed to receive any additional 5V, 12V or something similar for logic power? I don't think you want to connect the logic and PSU grounds in this case, especially if VR is rectified mains. That might actually be where I went wrong, on reflection. Agreed on that. Page 4 of the manual is telling something about the offsets of voltage, but I have only small clue, what exactly is that all about. (Freewheel diodes) Thanks for the explanation, but I do not get, where to look for them? :) Yes, on the datasheet, each of the 6 IGBTs has a diode in parallel with it. Ok, found them. So does it mean that it already is protected? Viesturs -- RSA(R) Conference 2012 Mar 27 - Feb 2 Save $400 by Jan. 27 Register now! http://p.sf.net/sfu/rsa-sfdev2dev2 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Servo drive?
On 12 January 2012 15:02, Viesturs Lācis viesturs.la...@gmail.com wrote: How do I determine, what size capacitors should be used? Right on the rectifier and also for those boot-strap capacitors? On the basis of maximum current draw and allowable ripple. And capacitor ESR too. What is that on the upper right corner? https://picasaweb.google.com/108164504656404380542/Gibbs#5471910659108799346 A connector for logic power, I think. It was over a year ago. Ok, thanks, now it makes sense! Do I need those shunt resistors for normal operation of the chip or are they meant just for feedback to controller? They are meant for feedback. Vss is the logic ground. Ok, great! Is it supposed to receive any additional 5V, 12V or something similar for logic power? Yes, Vdd. (Freewheel diodes) Ok, found them. So does it mean that it already is protected? It should be. But I still managed to break at least one. -- atp The idea that there is no such thing as objective truth is, quite simply, wrong. -- RSA(R) Conference 2012 Mar 27 - Feb 2 Save $400 by Jan. 27 Register now! http://p.sf.net/sfu/rsa-sfdev2dev2 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Servo drive?
On 12 January 2012 15:27, andy pugh bodge...@gmail.com wrote: Is it supposed to receive any additional 5V, 12V or something similar for logic power? Yes, Vdd. On reflection, it might be wise to use a DC/DC convertor for Vdd, so that it has a floating, isolated logic power, that can be safely referenced to PSU gnd. -- atp The idea that there is no such thing as objective truth is, quite simply, wrong. -- RSA(R) Conference 2012 Mar 27 - Feb 2 Save $400 by Jan. 27 Register now! http://p.sf.net/sfu/rsa-sfdev2dev2 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Servo drive?
2012/1/12 andy pugh bodge...@gmail.com: On 12 January 2012 15:27, andy pugh bodge...@gmail.com wrote: Is it supposed to receive any additional 5V, 12V or something similar for logic power? Yes, Vdd. On reflection, it might be wise to use a DC/DC convertor for Vdd, so that it has a floating, isolated logic power, that can be safely referenced to PSU gnd. And how much would such a convertor cost? I would need to convert 330VDC to 12VDC. Since I have to connect controller's GND to Vss, I could take +12V from PC PSU for logic power. But that introduces a risk of burning down a PC, if something happens in the chip, so I could sacrifice a PC PSU just for +12V supply to the logics of these chips. Viesturs -- RSA(R) Conference 2012 Mar 27 - Feb 2 Save $400 by Jan. 27 Register now! http://p.sf.net/sfu/rsa-sfdev2dev2 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Servo drive?
On Thu, Jan 12, 2012 at 10:32 AM, andy pugh bodge...@gmail.com wrote: On reflection, it might be wise to use a DC/DC convertor for Vdd, so that it has a floating, isolated logic power, that can be safely referenced to PSU gnd. This is what I did. I had trouble getting the IRAMS to fire without tying logic ground to the PSU ground. To this mechanical engineer's reading, the data sheet is not clear on that, but it didn't seem to work otherwise. I used a high power laboratory power supply, so my experience isn't probably that helpful. Eric -- RSA(R) Conference 2012 Mar 27 - Feb 2 Save $400 by Jan. 27 Register now! http://p.sf.net/sfu/rsa-sfdev2dev2 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Servo drive?
On Thu, 12 Jan 2012, Viesturs L?cis wrote: Date: Thu, 12 Jan 2012 17:43:21 +0200 From: [UTF-8] Viesturs L?cis viesturs.la...@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] Servo drive? 2012/1/12 andy pugh bodge...@gmail.com: On 12 January 2012 15:27, andy pugh bodge...@gmail.com wrote: Is it supposed to receive any additional 5V, 12V or something similar for logic power? Yes, Vdd. On reflection, it might be wise to use a DC/DC convertor for Vdd, so that it has a floating, isolated logic power, that can be safely referenced to PSU gnd. And how much would such a convertor cost? I would need to convert 330VDC to 12VDC. Since I have to connect controller's GND to Vss, I could take +12V from PC PSU for logic power. But that introduces a risk of burning down a PC, if something happens in the chip, so I could sacrifice a PC PSU just for +12V supply to the logics of these chips. Viesturs Yow! Yow! Yow! Dont even think about running a line operated drive with a PC power supply _Everything_ connected to the IRAM module must be isolated with a minimum test voltage of 3750VAC from low side control and 2500VAC from ground! I am advising against this unless you are familiar with high voltage high power circuits, isolation circuits, and guaranteeing that DC-DC converters and isolators to not fail in such a way as to compromise isolation. -- RSA(R) Conference 2012 Mar 27 - Feb 2 Save $400 by Jan. 27 Register now! http://p.sf.net/sfu/rsa-sfdev2dev2 ___ 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. -- RSA(R) Conference 2012 Mar 27 - Feb 2 Save $400 by Jan. 27 Register now! http://p.sf.net/sfu/rsa-sfdev2dev2 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Servo drive?
On Thu, 2012-01-12 at 13:49 +0200, Viesturs Lācis wrote: ... snip How big was that motor? Should something be differently with AC servo motor? I am not sure anymore that I do understand, what is inside AC servo motor. Normal DC brushless motors have permanent magnets, but I have difficulties understanding, how AC servo drives work (the fact that it still supplies DC to motors is confusing me), so I am not sure anymore that AC servo motors are synchronous electrical motors with permanent magnets. ... snip My understanding is that AC and DC brushless motors have nearly the same construction, being a multi pole permanent magnet rotor and three phase wound outer stator. The difference is in the details of the magnetic shape between the stator and rotor. The result is an AC brushless motor will give close to constant torque output from a constant (non-feedback) sinusoidal AC input. A DC motor will output close to a constant torque with a step or trapezoidal or DC input. Since, with EMC2, we are interested in tight feedback control, AC or DC motors will give close to the same result. So, AC or DC motors should work well enough and the feedback should provide the proper input. -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/index.html California, USA -- RSA(R) Conference 2012 Mar 27 - Feb 2 Save $400 by Jan. 27 Register now! http://p.sf.net/sfu/rsa-sfdev2dev2 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Servo drive?
On 12 January 2012 15:43, Viesturs Lācis viesturs.la...@gmail.com wrote: On reflection, it might be wise to use a DC/DC convertor for Vdd, And how much would such a convertor cost? I would need to convert 330VDC to 12VDC. I was meaning a 12 to 12 (or 12 to 15) one, like http://uk.rs-online.com/web/p/dc-dc-converters/6727408/ That gives the IRAMS board an isolated 15V supply, But, on the basis of the questions you are asking, you probably want to consider Pete's advice. -- atp The idea that there is no such thing as objective truth is, quite simply, wrong. -- RSA(R) Conference 2012 Mar 27 - Feb 2 Save $400 by Jan. 27 Register now! http://p.sf.net/sfu/rsa-sfdev2dev2 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Servo drive?
2012/1/12 andy pugh bodge...@gmail.com: On 12 January 2012 15:43, Viesturs Lācis viesturs.la...@gmail.com wrote: On reflection, it might be wise to use a DC/DC convertor for Vdd, And how much would such a convertor cost? I would need to convert 330VDC to 12VDC. I was meaning a 12 to 12 (or 12 to 15) one, like http://uk.rs-online.com/web/p/dc-dc-converters/6727408/ That gives the IRAMS board an isolated 15V supply, Thanks for the link! But You probably want to consider Pete's advice. Oh yes, I really would like to do that. Unfortunately I do not have much of a choice to get those motors running. So it is just one more case, where I will have to learn things the hard way. So I understand that it is required to: 1) insert optoisolators in PWM signal lines to insulate controller from the chip, I checked that optocouplers have Vrms = 2500 V; 2) I can use any external PSU as long as I insulate it from the chip with a DC-DC converter, DC converter's output is connected to Vdd and Vss, keeping it insulated from rectified motor power supply, DC converter in Andy's link has isolation voltage 3000 VDC; 3) connect rectifier (220VAC to 330VDC) output to: +330 VDC to V+ GND to LeU, LeV, LeW I pasted the schematics here: http://picpaste.com/chip-cgYQizaV.JPG Is 1:1 transformer needed for rectifier AC input to insulate from the AC supply? Viesturs -- RSA(R) Conference 2012 Mar 27 - Feb 2 Save $400 by Jan. 27 Register now! http://p.sf.net/sfu/rsa-sfdev2dev2 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Servo drive?
On 12 January 2012 18:14, Viesturs Lācis viesturs.la...@gmail.com wrote: I was meaning a 12 to 12 (or 12 to 15) one, like http://uk.rs-online.com/web/p/dc-dc-converters/6727408/ That gives the IRAMS board an isolated 15V supply, Thanks for the link! I have a feeling that that might not have a large enough current capacity, though. I just found my proto circuit, and it has a transformer on it, and I probably did that for a reason. Oh yes, I really would like to do that. Unfortunately I do not have much of a choice to get those motors running. So it is just one more case, where I will have to learn things the hard way. With large capacitors at 300VDC the hard way can be very hard indeed. You might not get the chance to learn from mistakes. Re your question about a 1:1 transformer, I think you probably want a 2:1 anyway, as rectified mains will give you 300V and your motors are specced for 160V. -- atp The idea that there is no such thing as objective truth is, quite simply, wrong. -- RSA(R) Conference 2012 Mar 27 - Feb 2 Save $400 by Jan. 27 Register now! http://p.sf.net/sfu/rsa-sfdev2dev2 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Servo drive?
2012/1/12 andy pugh bodge...@gmail.com: On 12 January 2012 18:14, Viesturs Lācis viesturs.la...@gmail.com wrote: I was meaning a 12 to 12 (or 12 to 15) one, like http://uk.rs-online.com/web/p/dc-dc-converters/6727408/ That gives the IRAMS board an isolated 15V supply, Thanks for the link! I have a feeling that that might not have a large enough current capacity, though. I just found my proto circuit, and it has a transformer on it, and I probably did that for a reason. The manual says: Quiscent VCC supply current: typical = 1.6, max = 2.3 mA Do I understand that this is how much current does logics consume with 15VDC? In that case one for each chip should be totally fine, because that dc-dc converter has 200 mA output. Oh yes, I really would like to do that. Unfortunately I do not have much of a choice to get those motors running. So it is just one more case, where I will have to learn things the hard way. With large capacitors at 300VDC the hard way can be very hard indeed. You might not get the chance to learn from mistakes. Do You mean risk of high voltage and even higher power electrical shock here? Re your question about a 1:1 transformer, I think you probably want a 2:1 anyway, as rectified mains will give you 300V and your motors are specced for 160V. Am I missing something? Where do You see 160V? Here is motor data (from the first email of this thread): Motor type: T3-0130-60-560 Winding number: 01-00111 Rated Speed: 6000 min^-1 DC Bus Voltage: 560 V Nominal AC Voltage: 330 V Rated Motor Voltage: 309 V Rated Torque: 1,00 Nm Rated AC Current: 1,40 A Stall Torque: 1,30 Nm Stall AC Current: 1,67 A Peak Torque: 5,2 Nm Peak Current: 7,2 A Max. Speed: 12000 min^-1 EMF Constant: 47,0 V/1000 Torque Constant: 0,78 Nm/A Terminal Resistance: 12,7 Ω Terminal Inductance: 21,5 mH Number of poles: 6 El. Time Constant: 1,7 ms Mech. Time Constant: 2,4 ms Thermal Time Constant: 30 min Rotor Inertia: 0,65 kg*cm^2 If motors were meant for 160V, I would already had purchased GraniteDevices drives weeks ago... Viesturs -- RSA(R) Conference 2012 Mar 27 - Feb 2 Save $400 by Jan. 27 Register now! http://p.sf.net/sfu/rsa-sfdev2dev2 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Servo drive?
On Thu, 12 Jan 2012, Viesturs L?cis wrote: Date: Thu, 12 Jan 2012 21:49:16 +0200 From: [UTF-8] Viesturs L?cis viesturs.la...@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] Servo drive? 2012/1/12 andy pugh bodge...@gmail.com: On 12 January 2012 18:14, Viesturs L??cis viesturs.la...@gmail.com wrote: I was meaning a 12 to 12 (or 12 to 15) one, like http://uk.rs-online.com/web/p/dc-dc-converters/6727408/ That gives the IRAMS board an isolated 15V supply, Thanks for the link! I have a feeling that that might not have a large enough current capacity, though. I just found my proto circuit, and it has a transformer on it, and I probably did that for a reason. The manual says: Quiscent VCC supply current: typical = 1.6, max = 2.3 mA Quiesent means inactive (I would expect 60 - 100 MA at 20 KHz gate drive) Do I understand that this is how much current does logics consume with 15VDC? In that case one for each chip should be totally fine, because that dc-dc converter has 200 mA output. Oh yes, I really would like to do that. Unfortunately I do not have much of a choice to get those motors running. So it is just one more case, where I will have to learn things the hard way. With large capacitors at 300VDC the hard way can be very hard indeed. You might not get the chance to learn from mistakes. Do You mean risk of high voltage and even higher power electrical shock here? Re your question about a 1:1 transformer, I think you probably want a 2:1 anyway, as rectified mains will give you 300V and your motors are specced for 160V. Am I missing something? Where do You see 160V? Here is motor data (from the first email of this thread): Motor type: T3-0130-60-560 Winding number: 01-00111 Rated Speed: 6000 min^-1 DC Bus Voltage: 560 V Nominal AC Voltage: 330 V Rated Motor Voltage: 309 V Rated Torque: 1,00 Nm Rated AC Current: 1,40 A Stall Torque: 1,30 Nm Stall AC Current: 1,67 A Peak Torque: 5,2 Nm Peak Current: 7,2 A Max. Speed: 12000 min^-1 EMF Constant: 47,0 V/1000 Torque Constant: 0,78 Nm/A Terminal Resistance: 12,7 ?? Terminal Inductance: 21,5 mH Number of poles: 6 El. Time Constant: 1,7 ms Mech. Time Constant: 2,4 ms Thermal Time Constant: 30 min Rotor Inertia: 0,65 kg*cm^2 If motors were meant for 160V, I would already had purchased GraniteDevices drives weeks ago... Viesturs -- RSA(R) Conference 2012 Mar 27 - Feb 2 Save $400 by Jan. 27 Register now! http://p.sf.net/sfu/rsa-sfdev2dev2 ___ 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. -- RSA(R) Conference 2012 Mar 27 - Feb 2 Save $400 by Jan. 27 Register now! http://p.sf.net/sfu/rsa-sfdev2dev2___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Servo drive?
2012/1/12 Peter C. Wallace p...@mesanet.com: On Thu, 12 Jan 2012, Viesturs L?cis wrote: Date: Thu, 12 Jan 2012 21:49:16 +0200 From: [UTF-8] Viesturs L?cis viesturs.la...@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] Servo drive? 2012/1/12 andy pugh bodge...@gmail.com: On 12 January 2012 18:14, Viesturs Lяяcis viesturs.la...@gmail.com wrote: I was meaning a 12 to 12 (or 12 to 15) one, like http://uk.rs-online.com/web/p/dc-dc-converters/6727408/ That gives the IRAMS board an isolated 15V supply, Thanks for the link! I have a feeling that that might not have a large enough current capacity, though. I just found my proto circuit, and it has a transformer on it, and I probably did that for a reason. The manual says: Quiscent VCC supply current: typical = 1.6, max = 2.3 mA Quiesent means inactive (I would expect 60 - 100 MA at 20 KHz gate drive) Thanks! I do not see anything else... Could it be that they have not bothered to specify max current that logics consume? Anyway, 100 mA also would do... I suspect that these are for the PWM input lines: Input bias current (OUT=LO): typical 100, max 220 μA Input bias current (OUT=HI): typical 200, max 300 μA Viesturs -- RSA(R) Conference 2012 Mar 27 - Feb 2 Save $400 by Jan. 27 Register now! http://p.sf.net/sfu/rsa-sfdev2dev2 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Servo drive?
On Thu, 2012-01-12 at 21:49 +0200, Viesturs Lācis wrote: 2012/1/12 andy pugh bodge...@gmail.com: On 12 January 2012 18:14, Viesturs Lācis viesturs.la...@gmail.com wrote: ... snip In case it might be useful, here is a link to other bridge driver information: http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?Bridges_-_Half,_Full,_Three_Phase -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/index.html California, USA -- RSA(R) Conference 2012 Mar 27 - Feb 2 Save $400 by Jan. 27 Register now! http://p.sf.net/sfu/rsa-sfdev2dev2 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Servo drive?
2011/12/23 Viesturs Lācis viesturs.la...@gmail.com: Hello, gentlemen! I have 3 servo motors and I am looking for appropriate servo drives for them. I managed to get a technical specification of my servo motors: Motor type: T3-0130-60-560 Winding number: 01-00111 Rated Speed: 6000 min^-1 DC Bus Voltage: 560 V Nominal AC Voltage: 330 V Rated Motor Voltage: 309 V Rated Torque: 1,00 Nm Rated AC Current: 1,40 A Stall Torque: 1,30 Nm Stall AC Current: 1,67 A Peak Torque: 5,2 Nm Peak Current: 7,2 A Max. Speed: 12000 min^-1 EMF Constant: 47,0 V/1000 Torque Constant: 0,78 Nm/A Terminal Resistance: 12,7 Ω Terminal Inductance: 21,5 mH Number of poles: 6 El. Time Constant: 1,7 ms Mech. Time Constant: 2,4 ms Thermal Time Constant: 30 min Rotor Inertia: 0,65 kg*cm^2 I have a serious problem finding a servo drives for these motors. With a help from Peter Wallace it was determined that I have ~750W AC servo motors. Can someone suggest me appropriate servo drive for these motors? Viesturs -- Ridiculously easy VDI. With Citrix VDI-in-a-Box, you don't need a complex infrastructure or vast IT resources to deliver seamless, secure access to virtual desktops. With this all-in-one solution, easily deploy virtual desktops for less than the cost of PCs and save 60% on VDI infrastructure costs. Try it free! http://p.sf.net/sfu/Citrix-VDIinabox ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Servo drive?
On 11 January 2012 08:40, Viesturs Lācis viesturs.la...@gmail.com wrote: I have 3 servo motors and I am looking for appropriate servo drives for them. I have a serious problem finding a servo drives for these motors. I suppose you could try making your own? http://uk.rs-online.com/web/p/motion-motor-control/6880723/ It should be possible to run one of those from a 3ppwm on a Mesa card The Granite drives should give you 3000rpm, is there any chance that that is enough? FWIW I am intending to run my 600W / 300V motors with 8i20s, but that is mainly because I have some to experiment with. I don't yet know how well it is going to work as I have been distracted by other projects. -- atp The idea that there is no such thing as objective truth is, quite simply, wrong. -- Ridiculously easy VDI. With Citrix VDI-in-a-Box, you don't need a complex infrastructure or vast IT resources to deliver seamless, secure access to virtual desktops. With this all-in-one solution, easily deploy virtual desktops for less than the cost of PCs and save 60% on VDI infrastructure costs. Try it free! http://p.sf.net/sfu/Citrix-VDIinabox ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Servo drive?
2012/1/11 andy pugh bodge...@gmail.com: On 11 January 2012 08:40, Viesturs Lācis viesturs.la...@gmail.com wrote: I have 3 servo motors and I am looking for appropriate servo drives for them. I have a serious problem finding a servo drives for these motors. I suppose you could try making your own? http://uk.rs-online.com/web/p/motion-motor-control/6880723/ It should be possible to run one of those from a 3ppwm on a Mesa card The price is such that I really could experiment with it. The problem is that I do not understand, what to do :)) I found manual on that page: http://docs-europe.electrocomponents.com/webdocs/0dca/0900766b80dca34c.pdf On page nr 9 I found a scheme of Typical application connection. Do I understand correctly that anything within the blue frame already is on that board? Anyone willing to consult me? The Granite drives should give you 3000rpm, is there any chance that that is enough? Andrew provided me with this formula: EMF constant * RPM + Peak current * Terminal resistance = Voltage So it can be transformed as RPM = ( Voltage - Peak current * Terminal resistance) / EMF Constant I just am not sure, if AC or DC voltage is meant there. Motors' parameters are: EMF Constant: 47,0 V/1000 Peak Current: 7,2 A Terminal Resistance: 12,7 Ω Max voltage for Granite drives is 160 VDC So max RPM would be 1000 * (160 - 7,2*12,7)/47 = 1458 RPM I really would like hit at least 2000 RPM for better max velocity - now I do not reach even 10m/min, which is not very fast for waterjet/plasma/laser machine. I might keep this in mind for case, if there really are no other options. FWIW I am intending to run my 600W / 300V motors with 8i20s, but that is mainly because I have some to experiment with. I don't yet know how well it is going to work as I have been distracted by other projects. Any chance You might do some basic tests in a nearest future? That would give me some idea, if 8i20s might be used for the task. Viesturs -- Ridiculously easy VDI. With Citrix VDI-in-a-Box, you don't need a complex infrastructure or vast IT resources to deliver seamless, secure access to virtual desktops. With this all-in-one solution, easily deploy virtual desktops for less than the cost of PCs and save 60% on VDI infrastructure costs. Try it free! http://p.sf.net/sfu/Citrix-VDIinabox ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Servo drive?
On 11 January 2012 11:58, Viesturs Lācis viesturs.la...@gmail.com wrote: http://docs-europe.electrocomponents.com/webdocs/0dca/0900766b80dca34c.pdf On page nr 9 I found a scheme of Typical application connection. Do I understand correctly that anything within the blue frame already is on that board? Yes. I would suggest opto-isolators between the IRAMS and the 5i23 or whatever, though. Anyone willing to consult me? I made mine do this: https://picasaweb.google.com/108164504656404380542/Gibbs#5469721364857131746 So might not be the ideal consultant Mk2 had heatsinking, but I think that died too: https://picasaweb.google.com/108164504656404380542/Gibbs#5471910659108799346 I can't recally if it was just the surge-limiter that went, or if it died completely when I was trying to use it as a VFD with an ordinary induction motor. EMF constant * RPM + Peak current * Terminal resistance = Voltage Ah, yes, I forgot to consider the ohmic losses, 1500rom is a bit pedestrian. Any chance You might do some basic tests in a nearest future? That would give me some idea, if 8i20s might be used for the task. I am a bit puzzled. The 8i20 is a 2.2kW drive, with up to 30A. Pete is concerned that 1A (and currents from there to zero) are a bit small for the internal calculations. However, a 750W motor is good proportion of the power rating, if not the current rating. Matt Shaver is running a 1kW motor with a max current of 7.5A on an 8i20, though that is a spindle application, so might not be directly comparable. I am going to be away from all computers for 6 weeks at the end of March, if you are not sorted out by then then I might be able to loan you one of my 8i20s. (sourceforge blocked this message the first time I sent it, so I have cc-ed Visteurs directly. I don't know if this will get through to the list) -- atp The idea that there is no such thing as objective truth is, quite simply, wrong. -- Ridiculously easy VDI. With Citrix VDI-in-a-Box, you don't need a complex infrastructure or vast IT resources to deliver seamless, secure access to virtual desktops. With this all-in-one solution, easily deploy virtual desktops for less than the cost of PCs and save 60% on VDI infrastructure costs. Try it free! http://p.sf.net/sfu/Citrix-VDIinabox ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Servo drive?
2012/1/11 andy pugh bodge...@gmail.com: On 11 January 2012 11:58, Viesturs Lācis viesturs.la...@gmail.com wrote: http://docs-europe.electrocomponents.com/webdocs/0dca/0900766b80dca34c.pdf On page nr 9 I found a scheme of Typical application connection. Do I understand correctly that anything within the blue frame already is on that board? Yes. I would suggest opto-isolators between the IRAMS and the 5i23 or whatever, though. Are You saying that optoisolator will not disturb PWM signal? Somehow I am convinced that it will... BTW I was warned that there should be considered protection for the board from overvoltages, coming from motors. Is that correct and how is that usually implemented? Anyone willing to consult me? I made mine do this: https://picasaweb.google.com/108164504656404380542/Gibbs#5469721364857131746 So might not be the ideal consultant Mk2 had heatsinking, but I think that died too: https://picasaweb.google.com/108164504656404380542/Gibbs#5471910659108799346 I can't recally if it was just the surge-limiter that went, or if it died completely when I was trying to use it as a VFD with an ordinary induction motor. The first picture is so obvious that I even I understand, but I have difficulties with the second picture - what should I look at? I am going to be away from all computers for 6 weeks at the end of March, if you are not sorted out by then then I might be able to loan you one of my 8i20s. Thank You for the offer! But then I have to get You a replacement, if I blow it up... (sourceforge blocked this message the first time I sent it, so I have cc-ed Visteurs directly. I don't know if this will get through to the list) At least I got it... Viesturs -- Ridiculously easy VDI. With Citrix VDI-in-a-Box, you don't need a complex infrastructure or vast IT resources to deliver seamless, secure access to virtual desktops. With this all-in-one solution, easily deploy virtual desktops for less than the cost of PCs and save 60% on VDI infrastructure costs. Try it free! http://p.sf.net/sfu/Citrix-VDIinabox ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Servo drive?
On 11 January 2012 14:11, Viesturs Lācis viesturs.la...@gmail.com wrote: Yes. I would suggest opto-isolators between the IRAMS and the 5i23 or whatever, though. Are You saying that optoisolator will not disturb PWM signal? Somehow I am convinced that it will... It shouldn't, much, if you have a fast enough one. BTW I was warned that there should be considered protection for the board from overvoltages, coming from motors. Is that correct and how is that usually implemented? Freewheeling diodes. You can see one across every power stage in the H-bridge. Effectively there is a 3-phase bridge-rectifier built into the H-bridge, and any voltages bus voltage are shuttled into the bus caps. Those need to be big enough to absorb the current without pushing the voltage too high. The first picture is so obvious that I even I understand, but I have difficulties with the second picture - what should I look at? Well, it just shows that I added a huge heat-sink for the drive and rectifier. Thank You for the offer! But then I have to get You a replacement, if I blow it up... Yes, what my motorcycling friends call Big boy's rules (you crash it, you fix/replace it) -- atp The idea that there is no such thing as objective truth is, quite simply, wrong. -- Ridiculously easy VDI. With Citrix VDI-in-a-Box, you don't need a complex infrastructure or vast IT resources to deliver seamless, secure access to virtual desktops. With this all-in-one solution, easily deploy virtual desktops for less than the cost of PCs and save 60% on VDI infrastructure costs. Try it free! http://p.sf.net/sfu/Citrix-VDIinabox ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Servo drive?
2011/12/23 Viesturs Lācis viesturs.la...@gmail.com: Hello, gentlemen! I have 3 servo motors and I am looking for appropriate servo drives for them. I managed to get a technical specification of my servo motors: Motor type: T3-0130-60-560 Winding number: 01-00111 Rated Speed: 6000 min^-1 DC Bus Voltage: 560 V Nominal AC Voltage: 330 V Rated Motor Voltage: 309 V Rated Torque: 1,00 Nm Rated AC Current: 1,40 A Stall Torque: 1,30 Nm Stall AC Current: 1,67 A Peak Torque: 5,2 Nm Peak Current: 7,2 A Max. Speed: 12000 min^-1 EMF Constant: 47,0 V/1000 Torque Constant: 0,78 Nm/A Terminal Resistance: 12,7 Ω Terminal Inductance: 21,5 mH Number of poles: 6 El. Time Constant: 1,7 ms Mech. Time Constant: 2,4 ms Thermal Time Constant: 30 min Rotor Inertia: 0,65 kg*cm^2 Can any one suggest me, what is the rated power of these motors? I thought that it is calculated this way: Rated power = rated voltage * rated current Andy Pugh told me that motor power could be calculated also this way: Power = 2 x pi x torque x rps How do they actually calculate that? Thanks in advance! Viesturs -- Write once. Port to many. Get the SDK and tools to simplify cross-platform app development. Create new or port existing apps to sell to consumers worldwide. Explore the Intel AppUpSM program developer opportunity. appdeveloper.intel.com/join http://p.sf.net/sfu/intel-appdev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Servo drive?
2011/12/27 Viesturs Lācis viesturs.la...@gmail.com 2011/12/23 Viesturs Lācis viesturs.la...@gmail.com: Hello, gentlemen! I have 3 servo motors and I am looking for appropriate servo drives for them. I managed to get a technical specification of my servo motors: Motor type: T3-0130-60-560 Winding number: 01-00111 Rated Speed: 6000 min^-1 DC Bus Voltage: 560 V Nominal AC Voltage: 330 V Rated Motor Voltage: 309 V Rated Torque: 1,00 Nm Rated AC Current: 1,40 A Stall Torque: 1,30 Nm Stall AC Current: 1,67 A Peak Torque: 5,2 Nm Peak Current: 7,2 A Max. Speed: 12000 min^-1 EMF Constant: 47,0 V/1000 Torque Constant: 0,78 Nm/A Terminal Resistance: 12,7 Ω Terminal Inductance: 21,5 mH Number of poles: 6 El. Time Constant: 1,7 ms Mech. Time Constant: 2,4 ms Thermal Time Constant: 30 min Rotor Inertia: 0,65 kg*cm^2 Can any one suggest me, what is the rated power of these motors? I thought that it is calculated this way: Rated power = rated voltage * rated current This is consumed electrical power, actually. Andy Pugh told me that motor power could be calculated also this way: Power = 2 x pi x torque x rps And this is output mechanical power. And I guess this is the rated power you seek for. Andrew -- Write once. Port to many. Get the SDK and tools to simplify cross-platform app development. Create new or port existing apps to sell to consumers worldwide. Explore the Intel AppUpSM program developer opportunity. appdeveloper.intel.com/join http://p.sf.net/sfu/intel-appdev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Servo drive?
Rated power = rated voltage * rated current This is consumed electrical power, actually. So ~749 W (1.4A x 309V x SQRT(3)) in (assuming A is A RMS per phase) Andy Pugh told me that motor power could be calculated also this way: Power = 2 x pi x torque x rps And this is output mechanical power. And I guess this is the rated power you seek for. and ~628W out About 83% efficient so the motor needs to dissipate ~121 watts of heat at full load Andrew -- Write once. Port to many. Get the SDK and tools to simplify cross-platform app development. Create new or port existing apps to sell to consumers worldwide. Explore the Intel AppUpSM program developer opportunity. appdeveloper.intel.com/join http://p.sf.net/sfu/intel-appdev ___ 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. -- Write once. Port to many. Get the SDK and tools to simplify cross-platform app development. Create new or port existing apps to sell to consumers worldwide. Explore the Intel AppUpSM program developer opportunity. appdeveloper.intel.com/join http://p.sf.net/sfu/intel-appdev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Servo drive?
2011/12/27 Peter C. Wallace p...@mesanet.com: 2011/12/27 Andrew parallel.kinemat...@gmail.com: Rated power = rated voltage * rated current This is consumed electrical power, actually. So ~749 W (1.4A x 309V x SQRT(3)) in (assuming A is A RMS per phase) Andy Pugh told me that motor power could be calculated also this way: Power = 2 x pi x torque x rps And this is output mechanical power. And I guess this is the rated power you seek for. and ~628W out Andrew, Peter, thank You! Viesturs -- Write once. Port to many. Get the SDK and tools to simplify cross-platform app development. Create new or port existing apps to sell to consumers worldwide. Explore the Intel AppUpSM program developer opportunity. appdeveloper.intel.com/join http://p.sf.net/sfu/intel-appdev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] Servo drive?
Hello, gentlemen! I have 3 servo motors and I am looking for appropriate servo drives for them. I managed to get a technical specification of my servo motors: Motor type: T3-0130-60-560 Winding number: 01-00111 Rated Speed: 6000 min^-1 DC Bus Voltage: 560 V Nominal AC Voltage: 330 V Rated Motor Voltage: 309 V Rated Torque: 1,00 Nm Rated AC Current: 1,40 A Stall Torque: 1,30 Nm Stall AC Current: 1,67 A Peak Torque: 5,2 Nm Peak Current: 7,2 A Max. Speed: 12000 min^-1 EMF Constant: 47,0 V/1000 Torque Constant: 0,78 Nm/A Terminal Resistance: 12,7 Ω Terminal Inductance: 21,5 mH Number of poles: 6 El. Time Constant: 1,7 ms Mech. Time Constant: 2,4 ms Thermal Time Constant: 30 min Rotor Inertia: 0,65 kg*cm^2 Intended to be used with EMC2 :) I have 2 questions: 1) can anyone suggest me, where can I get appropriate servo drive? This is for my own machine, my first priority is cost efficiency. It does not have to look good, it is ok to spend additional time on wiring etc. It just has to work reliably. I already looked at 8i20, but it does not fit due to motor's current being too low for the drive, I also looked at Granite Devices, but their drives are working with max 160 VDC. I cannot open KelingInc website (something wrong with my ISP, I got confirmation that the site is actually working), so I have not checked, if they have something that would fit. 2) since closing feedback loop in servo drive is not a requirement for EMC2, I would like to find out, if some motor controller could be used in this situation. Although I would like to avoid using Chinese stuff for several reasons, here is one example, where I cannot understand, if it can be used for my application or no: http://www.hzmgdj.com.cn/product/257548762-209298864/motor_controller.html Thanks in advance for any hints! Viesturs -- Write once. Port to many. Get the SDK and tools to simplify cross-platform app development. Create new or port existing apps to sell to consumers worldwide. Explore the Intel AppUpSM program developer opportunity. appdeveloper.intel.com/join http://p.sf.net/sfu/intel-appdev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
