Just change it to volts/hz. I'd set it up like it is one big motor. Add the full load amps together, etc like you mentioned.
It should work with a volts/hz setting. Some drives are just too smart. :-) Dave On 11/25/2014 4:09 PM, Viesturs Lācis wrote: > Thank you! Yes, there is such a setting. > Could you, please, explain in more detail, if there are any > addditional settings I should pay attention to, when switching over to > vector control? Or should I just start with this one change and check > for any improvements? > > Viesturs > > > 2014-11-25 23:00 GMT+02:00 Andrew <stormbringe...@mail.ru>: >> Hi Viesturs! >> If your VFD has a vector control, maybe you should switch it over to V/F >> control with constant torque. I had the same trouble with my Hyundai VFD. >> Regards,Andrew >> ... >> >> >> >> >> >> >> >> 23:43 +0300 от Viesturs Lācis <viesturs.la...@gmail.com>: >> Hello! >> >> I need to drive 2 high-speed spindle motors, 3,7 kW each. For that I >> have 11 kW VFD. >> The problem is that I attached motors to the drive, tried to run them, >> but VFD does not increase frequency above 8-9 hertz (all the default >> frequency values are 50 hertz, I checked them and set to 100 to make >> sure that it not a problem). And in addition to that motors get really >> hot in a minute or so. I set "no load current" to 0,2 A, max current >> currently is set to 17 A (max current for each motor is 8,7A). >> >> This VFD worked fine few weeks ago with 7 kW motor. I checked the >> motors today with 2kW VFD - worked just fine. >> >> Ok, I can decrease max current to 2-3 amps, while testing, probably >> that should fix the overheating, but why does it not allow to increase >> frequency? >> >> I would appreciate also any additional advices on how to run 2 motors >> with 1 VFD. >> >> Viesturs >> >> ------------------------------------------------------------------------------ >> Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server >> from Actuate! Instantly Supercharge Your Business Reports and Dashboards >> with Interactivity, Sharing, Native Excel Exports, App Integration & more >> Get technology previously reserved for billion-dollar corporations, FREE >> http://pubads.g.doubleclick.net/gampad/clk?id=157005751&iu=/4140/ostg.clktrk >> _______________________________________________ >> Emc-users mailing list >> Emc-users@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/emc-users >> ------------------------------------------------------------------------------ >> Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server >> from Actuate! Instantly Supercharge Your Business Reports and Dashboards >> with Interactivity, Sharing, Native Excel Exports, App Integration & more >> Get technology previously reserved for billion-dollar corporations, FREE >> http://pubads.g.doubleclick.net/gampad/clk?id=157005751&iu=/4140/ostg.clktrk >> _______________________________________________ >> Emc-users mailing list >> Emc-users@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/emc-users > ------------------------------------------------------------------------------ > Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server > from Actuate! Instantly Supercharge Your Business Reports and Dashboards > with Interactivity, Sharing, Native Excel Exports, App Integration & more > Get technology previously reserved for billion-dollar corporations, FREE > http://pubads.g.doubleclick.net/gampad/clk?id=157005751&iu=/4140/ostg.clktrk > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users --- This email is free from viruses and malware because avast! Antivirus protection is active. http://www.avast.com ------------------------------------------------------------------------------ Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server from Actuate! Instantly Supercharge Your Business Reports and Dashboards with Interactivity, Sharing, Native Excel Exports, App Integration & more Get technology previously reserved for billion-dollar corporations, FREE http://pubads.g.doubleclick.net/gampad/clk?id=157005751&iu=/4140/ostg.clktrk _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
