Peter,
Not a problem, 100mA is current to spare. The 100mA outputs are open- drain and diode clamped to the 24VDC power supply of your choice. You supply the 24VDC to run your relays or whatever, that is not taken from the USB 5VDC. Mariss --- In [EMAIL PROTECTED], Peter Homann <[EMAIL PROTECTED]> wrote: > Hi Mariss, > > You will need to add an alternative power source, such as a wall adapter > or other power supply. The USB specification imposes limits on current > draw. The host first recognizes any peripheral as a low-power device, > which is limited to less than 100 mA of current. The peripheral can ask > the host to recognize it as a high-power device through a process called > enumeration. Once enumeration is complete and permission is granted, the > peripheral current limitation increases to 500 mA. > > Even 500mA is not enough for 16 outputs at 100mA each, let alone the > other power requirements of the G2002. > > Cheers, > > Peter. > > Mariss Freimanis wrote: > > > > Hi, > > > > The G204V "Vampire" drive design is finished. The first 100 beta > > units will be available at the beginning of January. > > > > That means I'm back on the G2002 (G2005?) project. The FPGA for the > > design is being coded right now. In summary, the G2002 will have: > > > > 1) 6 axis of step / direction (up to 4 MHz step rate) > > 2) 6 axies of encoder feedback (CH-A, CH-B, Index and Fault) > > 3) 8 analog output channels (+/-10V, 0-5V) > > 4) 8 analog input channels (0-5V) > > 5) 16 general purpose outputs (5-24VDC, 100mA) > > 6) 16 general purpose inputs (+/- 100V protected) > > 7) USB interface, USB powered > > > > Mariss > > > > > > > > --- In [EMAIL PROTECTED], Jon Elson <[EMAIL PROTECTED]> wrote: > > > >>R Rogers wrote: > >> > >> > >>>Wasn't Art Fenerty working on a system like this for Mach2? He > > > > referred to it as a "cube" or something like that? Basically a remote > > pulse generator. However, I understood it was to work from the > > parallel port. Maybe he already released it and I'm unaware of it. > > > >>> > >>> > >> > >>Yes, hardware by Mariss Freimanis of Gecko Drives, called the > > > > G2002, I > > > >>think. There is a group > >>of people working on it. It runs through the USB, I believe. > >> > >>Jon > > > > > > > > > > > > > > Addresses: > > FAQ: http://www.ktmarketing.com/faq.html > > FILES: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/files/ > > Post Messages: [EMAIL PROTECTED] > > > > Subscribe: [EMAIL PROTECTED] > > Unsubscribe: [EMAIL PROTECTED] > > List owner: [EMAIL PROTECTED], [EMAIL PROTECTED], [EMAIL PROTECTED] > > Moderator: [EMAIL PROTECTED] [EMAIL PROTECTED] [EMAIL PROTECTED] [Moderators] > > URL to this group: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO > > > > OFF Topic POSTS: General Machining > > If you wish to post on unlimited OT subjects goto: aol://5863:126/rec.crafts.metalworking or go thru Google.com to reach it if you have trouble. > > http://www.metalworking.com/news_servers.html > > > > http://groups.yahoo.com/group/jobshophomeshop I consider this to be a sister site to the CCED group, as many of the same members are there, for OT subjects, that are not allowed on the CCED list. > > > > NOTICE: ALL POSTINGS TO THIS GROUP BECOME PUBLIC DOMAIN BY POSTING THEM. DON'T POST IF YOU CAN NOT ACCEPT THIS.....NO EXCEPTIONS........ > > bill > > List Mom > > List Owner > > > > > > Yahoo! Groups Links > > > > > > > > > > > > > > > > > > > > > > -- > ------------------------------------------------------------------ > Web: www.homanndesigns.com > email: [EMAIL PROTECTED] > Phone: +61 421 601 665 > www.homanndesigns.com/DigiSpeedDeal.html - DC Spindle control > www.homanndesigns.com/TurboTaig.html - Taig Mill Upgrade board Addresses: FAQ: http://www.ktmarketing.com/faq.html FILES: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/files/ Post Messages: [EMAIL PROTECTED] Subscribe: [EMAIL PROTECTED] Unsubscribe: [EMAIL PROTECTED] List owner: [EMAIL PROTECTED], [EMAIL PROTECTED], [EMAIL PROTECTED] Moderator: [EMAIL PROTECTED] [EMAIL PROTECTED] [EMAIL PROTECTED] [Moderators] URL to this group: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO OFF Topic POSTS: General Machining If you wish to post on unlimited OT subjects goto: aol://5863:126/rec.crafts.metalworking or go thru Google.com to reach it if you have trouble. http://www.metalworking.com/news_servers.html http://groups.yahoo.com/group/jobshophomeshop I consider this to be a sister site to the CCED group, as many of the same members are there, for OT subjects, that are not allowed on the CCED list. NOTICE: ALL POSTINGS TO THIS GROUP BECOME PUBLIC DOMAIN BY POSTING THEM. DON'T POST IF YOU CAN NOT ACCEPT THIS.....NO EXCEPTIONS........ bill List Mom List Owner Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
