> Hi John, hi Andy! > > On 23.03.20 17:13, John Dammeyer wrote: > > In, Vancouver there is > > http://www.dmm-tech.com > > > > Any particular reason why you want 48V? I use the Bergerda 220VAC units > > and although shipping is expensive the motor/drive components do end up > > costing less than the similar units from dmm-tech. > > ... > The reason for the 48V system is mainly safety, as it makes the design > so much simpler if you don't have to care about all the HV stuff inside > the machine. Everything else runs off 24V, there is no single wire > running through the machine carrying mains power.
Common mode voltage will also be lower, maybe inductance for electric time constant is lower and possibility to use MOFSET instead of IGBT might be a third reason. Lower inductance make possible faster dynamic response as torque change faster but also increase current ripple. > The drive system supports several standard encoder interfaces, but > nothing proprietary. Using the motor manufacturer's drive is not an > option, as all motion components need to be connected to a high speed > serial bus (similar to EtherCAT). Similar to Ethercat, Sercos? > Thanks and best regards, > Philipp _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
