On Friday 16 June 2017 11:20:16 Sebastian Kuzminsky wrote: > On 06/16/2017 08:32 AM, andy pugh wrote: > > On 16 June 2017 at 14:43, Sebastian Kuzminsky <[email protected] > > <mailto:[email protected]>> wrote: > > > > No, .base-freq was an Out pin, it got read from the VFD and > > reported to HAL, but never used in the hy_vfd driver. > > > > Did the OP have some Hal circuitry that depended on it maybe? > > > > > > He appears to want to set it from HAL. (Because he has one VFD > > connected to either of two motors, I think for either a low speed > > (50Hz) or high speed (400Hz) spindle. > > Many VFD motor-configuration registers, including PD005 "Maximum > Operating Frequency", can be set by hy_vfd at startup based on > command-line arguments. None of them can be changed at runtime via > HAL pins.
The little booklet that came with mine, seems to assume it has a working rs-485/22 interface. There are sequences of data that could be sent thru that interface, to select the PDxx register and then write to it. I'd have to assume that this could be done in real time since I can manipulate it while its running the motor from its own front panel. That is not a hal job unless hy_vfd can access a file for all that data, and the hal pin switched then would cause it to (re)load one of the two profiles to run the given motor. 2 pins would allow 4 profiles etc. However, he would be taking a high chance of destroying the vfd when switching motors while its live since they do NOT like loose connections or switches whose conacts bounce on their outputs, and they ALL do. And if he is actually switching the motor in its mounts on the same machine, I'd think he would be far safer by just having two configs, loading the one for that motor. Thats only a small slice of time compared to physically switching out the motor itself. There's a guy named Murphy watching such things carefully, just waiting to stick out a foot and trip us up. No use tempting him. Cheers, Gene Heskett -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) Genes Web page <http://geneslinuxbox.net:6309/gene> ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Emc-developers mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-developers
