Re: [CAD_CAM_EDM_DRO] gecko burned again

Hi Keith,

Finding a suitable low cost drive for big steppers on a B/port was the reason I changed over to servos. Your setup is working save the occasional drive problem. Can you possibly limit the current on that one drive for holding torque? You said it was during a move so, maybe turn down the velocity and acceleration in Mach2 axis configuration for "Y"?. It's probable that some fine tuning might eliminate future problems. If it works one month it should work many months. I lost a Gecko 320 last week and it was because the current coming into the shop was surging for a few days. Many on here said if I'd had a capacitor on the leads coming from the power supply right at the drive it would probably not have blown. Possibly this is your issue as well?


Ron

Keith Clark <mail@...> wrote:


Well, the y axis gecko drive burned again this morning. This time
there are no loose wires. I was doing very little with the machine
and had just turned it on when during a y axis G0 move, the drive
burned up. I assume this is an indication that the Gecko cannot
handle the motor I am using. This is an old topic and I have asked
for help with this problem before. The mill is a Bridgeport Series
1 CNC originally controlled by Boss 6 but now using Anaheim Nema 42
high torque stepper motors and Mach2 software with a Campbell
breakout board.

At this point is seems reasonable to try another brand drive?

Thanks
Keith Clark
clarkfamily5@...





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