I think the spindle manufacturers expressly forbid auto tune. Try setting the inverter to 400Hz, this indicates to the inverter that it is a low inductance motor and will be able to control the current better, remember to set both base frequency and max frequency.
-----Original Message----- From: alex chiosso [mailto:[email protected]] Sent: 26 November 2014 17:40 To: Enhanced Machine Controller (EMC) Subject: Re: [Emc-users] VFD trouble This VFD has also a Auto tune function , did you tried it ? Alex On Wed, Nov 26, 2014 at 4:34 PM, alex chiosso <[email protected]> wrote: > Hi Viesturs. > How did you connect the motor phases (on the motor terminal blocks) > star or triangle ? > The motor seems to be a 2 poles (12000rpm at 200Hz) and the phase > voltage is 220VAC so you should connect the motor phases to "star" type isn't it ? > Are you driving the speed reference with an analog input or via a > digital input o via the VFD keypad ? > Are you sure that you're giving the right reference value to the VFD ? > > Alex > > > On Wed, Nov 26, 2014 at 4:19 PM, <[email protected]> wrote: > >> The VFD manufacturers have white papers specifically covering driving >> multiple motors from one larger VFD so it's absolutely a supported >> configuration. You need separate overcurrent protection for each >> connected motor though since the VFD's OCP can't work to protect an >> individual motor in such a configuration. >> >> >> ------Original Mail------ >> From: "Ron Ginger" <[email protected]> >> To: <[email protected]> >> Sent: Wed, 26 Nov 2014 07:38:27 -0500 >> Subject: Re: [Emc-users] VFD trouble >> >> Are you trying to run 2 motors wired in parallel to one VFD? I dont >> think that will work. Their rotors will never be in phase so any >> feedback generated is going to be really strange to the VFD. >> >> ron ginger >> >> On 11/25/2014 10:30 PM, [email protected] wrote: >> >>I need to drive 2 high-speed spindle motors, 3,7 kW each. For that >> >>I have 11 kW VFD. >> >> >> >> --------------------------------------------------------------------- >> --------- 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 >> [email protected] >> 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 >> [email protected] >> 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 [email protected] 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 [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
