2011/12/28 <kqt4a...@gmail.com>: > > I got this response > >> The 40V 10Amp power supply is more than capable of handling all 4 drivers >> running the 3 amp motors. The formula breaks down like this: 3A x 4 x 60% = >> 7.2 amps >> This would be what your draw would be on the power supply. > > Would someone elaborate on this just a bit > I am not questioning their response I just do not understand it
When stepper motor is moving, current in the windings is turned on and off, it fluctuates from 0 to 3A and back, so overall current does not reach 3A, but is somewhere inbetween. There are stepper drives, that are doing this also when motor is not moving, probably their drives are doing this. BTW I used Gecko drives for one of my machines. Their manual says that drive will draw 67% of motor winding current from the power supply. If motors are set (with DIP switches or resistor) for 3A, it will draw ~2A from power supply. Viesturs ------------------------------------------------------------------------------ Ridiculously easy VDI. With Citrix VDI-in-a-Box, you don't need a complex infrastructure or vast IT resources to deliver seamless, secure access to virtual desktops. With this all-in-one solution, easily deploy virtual desktops for less than the cost of PCs and save 60% on VDI infrastructure costs. Try it free! http://p.sf.net/sfu/Citrix-VDIinabox _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
