Hi, If you don't want to or can't use Modbus, you could use a DC-03 DigiSpeed (that I sell). http://www.homanndesigns.com/store/index.php?main_page=product_info&cPath=1&products_id=21
It accepts a PWM waveform where the duty cycle is converted into an analog control voltage hat replaces the potentiometer that controls the VFD speed. Cheers, Peter On 4/03/2012 6:43 PM, Viesturs Lācis wrote: > 2012/3/4 Kirk Wallace<[email protected]>: >> I'm just wondering, how many out there have VFD's without Modbus or >> other communication and might want it on their existing drives? > > I built a routing machine and spindle has a VFD, which is now operated > only by its control panel - Start/Stop button and a potentiometer for > setting speed. I guess that it has built-in Modbus capability, but I > have so much trouble with the machine already that I have not even > started of thinking, how to get VFD under LinuxCNC control. > > I do think that I might try to upsell that to my customer, once > everything else is sorted out, but for that I need some very explicit > "how-to" instructions in documentation, because I do not yet have any > experience with Modbus. > > Viesturs > > ------------------------------------------------------------------------------ > Virtualization& Cloud Management Using Capacity Planning > Cloud computing makes use of virtualization - but cloud computing > also focuses on allowing computing to be delivered as a service. > http://www.accelacomm.com/jaw/sfnl/114/51521223/ > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users > -- ----------------------------------------------------------------------------- eStore: http://www.homanndesigns.com/store Web : http://www.homanndesigns.com ModIO - Modbus Interface Unit email : [email protected] DigiSpeed - Isolated 10Vdc I/F Phone : +61 421 601 665 TurboTaig - Taig Mill Upgrade board ------------------------------------------------------------------------------ Virtualization & Cloud Management Using Capacity Planning Cloud computing makes use of virtualization - but cloud computing also focuses on allowing computing to be delivered as a service. http://www.accelacomm.com/jaw/sfnl/114/51521223/ _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
