Re: [CAD_CAM_EDM_DRO] Re: new stepper motors wiring mess ?fixed!

Keith,

Just curious, why the battery backup system. Is it in case of power failures? PC programs back up to the hard-drive when you save them as whatever. You arent using encoders. Like a battery system would store the accurate position during a power outage.

Ron

Keith Clark <mail@...> wrote:
Hold everything. I was wrong. The problem was that whenever I
plugged in the powersupply to the battery backup system it kept
producing a fault. When I first plut the power supply into the
backup then turn the backup on there is no problem. Fortunately I
tried this little trick before rewiring the motor the way I thought
it should be. I did leave it as was suggested by the factory and
GEcko and it works!!!! No burned GEcko this time! Only problem now
is getting the settings at the software level adjusted. The new
motor is quiet and smooth! Do other software such as Mach2 that
control the axis motors have settings for rapid speed acceleration
and deceleration? I have the step rate set fine and get accurate
distances, but still stalls with higher speeds as before with the
old Bridgeport stepper motors.

Keith Clark

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "Keith Clark"
wrote:

> Help again! My repaired motion board, replacement Gecko 210

driver

> and new stepper motors arrived. I assembled them all but

installed

> only one stepper motor to the Z axis for testing.
>
> I talked to the Anaheim Automation factory person to get advice on
> the wiring for the Gecko drives and his new motor. It is wired
> bipolar in series and is rated at 4.9 amps. It is one of the new
> square Nema 42 high torque motors.
>
> There are 2 windings wired in series together on one side of the
> motor and another 2 windings wired in series on the other side. I
> was instructed to connect one end of a set of series windings to

the

> Gecko phase A and the other end to Phase B then connect the second
> set of series windings to Phase C and D. This is exactly what I

did

> on the original Bridgeport motor and the Gecko burned up! I told

him

> this but he thought it would be correct.
>
> So on I merrily went according to the plan and it was apparently
> wrong. Luckily I had purchased a backup powersupply for the setup
> and it recognized an overload and shutdown before (I hope) ruining
> the Gecko drive. I wonder if I can just switch Phase B and C

wires

> as I did before and get it to run.
>
> I just don't understand why both the Gecko instructions and the
> Anaheim Automation instructions describe the same wiring method

and

> it does not work. What am I not understanding here?
>
> Thanks! (again)
> Keith Clark
>
> HEART FELT APPRECIATION! I think I will get to the bottom of all
> this eventually, but not without a lot of help from my new CAD-CAM-
> EDM-DRO friends! The advice, insruction and suggestions given so
> far have saved me from giving up and are truly appreciated!

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