On 01/15/2015 11:32 PM, Marius Liebenberg wrote: ... snip > I use similar drives all the time and I put 110vdc on a 80vdc drive > the other week.
The cover shows 80VAC max. which would be (80 * 1.4 =) 112VDC max. and shows 110VDC max on the cover. > I thought that the drives was cooked but when I tested it with the > correct voltage it was fine. It seems that hey have an input current > and voltage sensing circuit and will not damage easily. I took the cover off to see inside. I need to take some close up pictures to document the various bits. > Most of these drive originate from the same factory and my exerience > with them has been very good. Some of them does have a fuse on the > pcb. I looked for a fuse but didn't find one, although giving it more thought a fuse these days might look like a SMT resistor. I'll have to look closer. > I did break one drive when I unplugged the motor while the drive was > still under power. There was some chatter on the CNCzone/Tormach forum recently about unplugging a fourth axis and killing the driver. Some people said they do it all the time, which sees hard to believe. It came to mind that it would be nice to have the connector latch interlocked with the drive power so the drive is turned off well before the connector breaks output contact. -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ ------------------------------------------------------------------------------ New Year. New Location. New Benefits. New Data Center in Ashburn, VA. GigeNET is offering a free month of service with a new server in Ashburn. Choose from 2 high performing configs, both with 100TB of bandwidth. Higher redundancy.Lower latency.Increased capacity.Completely compliant. http://p.sf.net/sfu/gigenet _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
