CAD CAM EDM DRO - Yahoo Group Archive

Capacitors for Geckos when using fuses

Posted by jagco1998
on 2002-10-24 10:45:21 UTC
I have a few more dumb questions....
I dont want to burn anything up, in using components that are
incapable of handling voltage/currents correctly.
The gecko white papers say that when using a 5A fast-blow fuse to
protect the drivers, that a 470uF 100V cap needs to be placed on
across power leads.

My 1st question is this..Can a 470uF 35V cap be used, instead of
100V as the white papers suggest? I can find them at every elec.
supplier in my small town of residence.

I am only using a 24Vdc/10A switching power supply to power 3 gecko
G201's, and have already placed a 4700uF 35V cap across the PS
outputs(I couldnt find anything larger than 35V. I live in the
sticks!)

Also, is the 4700uF 35V cap going to be sufficient for my PS?
Without the cap, a dig. voltagemeter across the output leads tell me
that the power only fluctuates from 24V to 24.2V no load.

I realize that this probably will become a substantially larger
fluctutation once a load is applied.

Will a spike or short in the power going to the motors damage them
if not protected with a fuse? Would it be wise to also fuse the
lines going to the motors also, or is this necessary?

Any suggestions or comments will be appreciated.
Thanks.

Regards,
Jim

Discussion Thread

jagco1998 2002-10-24 10:45:21 UTC Capacitors for Geckos when using fuses turbulatordude 2002-10-24 12:18:11 UTC Re: Capacitors for Geckos when using fuses Jim Brown 2002-10-24 12:59:19 UTC Re: [CAD_CAM_EDM_DRO] Re: Capacitors for Geckos when using fuses Tim Goldstein 2002-10-24 13:11:09 UTC Re: [CAD_CAM_EDM_DRO] Re: Capacitors for Geckos when using fuses turbulatordude 2002-10-25 09:47:47 UTC Re: Capacitors for Geckos when using fuses Jim Brown 2002-10-25 17:22:41 UTC Re: [CAD_CAM_EDM_DRO] Re: Capacitors for Geckos when using fuses turbulatordude 2002-10-25 19:06:40 UTC Re: Capacitors for Geckos when using fuses Jim Brown 2002-10-25 20:33:56 UTC Re: [CAD_CAM_EDM_DRO] Re: Capacitors for Geckos when using fuses