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
