Machsupport Forum

Mach Discussion => General Mach Discussion => Topic started by: rhtuttle on February 27, 2019, 03:58:36 PM

Title: Spindle control - db25
Post by: rhtuttle on February 27, 2019, 03:58:36 PM

Have been cleaning up my wiring that has accumulated over the years (limit switches, spindle tach, probe) by adding a db25 connector to my power/control box.  Really eliminates a lot of cords/cables.

I have plenty of pins left but was wondering whether it is okay/normal to use those for the VFD 10v+, Output and Ground on a Gecko g540?  Don't know anything about electrical limits.  Any help appreciated.

TIA

RT

Title: Re: Spindle control - db25
Post by: reuelt on March 11, 2019, 04:21:45 AM

Each pin of DB25 can take max. of 2A and Max. of 250V
It is the wire used that may be limiting

Title: Re: Spindle control - db25
Post by: joeaverage on March 11, 2019, 04:29:37 AM

Hi,
if you get a flash over at 250V its going to explode. I'd be reluctant to push it out to 80V.

If you are talking conductors  supplying motors; inductive voltage spikes could spell a flashover!!!!

Craig