Had you done that before? Resetting the drive is the first step in all the directions that I have seen. I'm happy with mine, but I wish I could add an external braking resistor.
On Sun, Aug 20, 2017 at 10:45 AM, David Berndt <ber...@uberwin.com> wrote: > Sigh, resetting the drive to defaults cured the reverse issue. No idea > what setting could have been set to cause some sort of a reverse bias or ?? > issue. > > > On Sun, 20 Aug 2017 03:40:56 -0400, David Berndt <ber...@uberwin.com> > wrote: > > I'm having some issues commissioning my HY VFD. 4kw unit driving a 5hp >> 3450rpm motor at 30hz max frequency (temporary 2 pole motor, 4 pole motor >> is in the mail). Works great in "forward", but when it accels in reverse it >> trips out and throws an E.OC.N error. Which appears to be an over current >> error. >> >> I've flipped 2 leads to the motor, reversing the physical rotation and it >> still works great in vfd "forward", proving that the motor and mechanical >> aspects work in both directions. But the VFD does not. Accel times are >> quite conservative/slow. Problem happens about 1 second into acceleration. >> No clue.... There don't seem to be any relevant settings. Problem happens >> regardless of control method, modbus or operator panel. >> >> Unrelated, but wow, at low speeds this VFD seems to throw off a ton of >> interference. The symptom I've noticed is that my usb mouse connected to >> the PC in the control cabinet that also houses the VFD basically gives up >> on life if the motor is running below 15hz. USB dongle modbus was fairly >> impacted as well until I grounded the cable shield to the pc case. >> >> Just to make this slighlty more on topic. Is there a config somewhere for >> maximum spindle RPM? With the drive configured correctly it won't overspeed >> the motor, but it would be nice if the software was aware of a top end for >> spindle speed as well. >> >> >> Thanks, >> Dave >> >> ------------------------------------------------------------ >> ------------------ >> Check out the vibrant tech community on one of the world's most >> engaging tech sites, Slashdot.org! http://sdm.link/slashdot >> _______________________________________________ >> Emc-users mailing list >> Emc-users@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/emc-users >> >> > > -- > Using Opera's mail client: http://www.opera.com/mail/ > > > ------------------------------------------------------------ > ------------------ > Check out the vibrant tech community on one of the world's most > engaging tech sites, Slashdot.org! http://sdm.link/slashdot > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
