On Fri, 1 Mar 2024 at 13:53, lloyd wilson <llwilso...@rochester.rr.com> wrote:
> program operates properly (I think)- run/stop behaves as expected, speed > commands are generated and accepted by the VFD, but the motor speed > stays the same. What is that speed? It could be a scaling issue (rpm being interpreted as Hz, such that everything looks like max speed), or the reverse, so that the VFD is constantly running at minimum programmed speed. It might be necessary to set up the VFD to accept speed commands from the com port rather than the front panel / potentiometer. (Although looking at what might be the relevant manual (or might not) I see "3. When the parameter unit (FR-PU04) is used, the external terminals are used for control of the inverter. The inverter does not have terminals for direct control of operation commands or frequency setting." ) -- atp "A motorcycle is a bicycle with a pandemonium attachment and is designed for the especial use of mechanical geniuses, daredevils and lunatics." — George Fitch, Atlanta Constitution Newspaper, 1912 _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
