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

On Sat, 28 Aug 2004 13:57:40 -0000, you 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.

Don't know, but remember the technique I suggested, it might (if this
is a potential problem) help the next time you or anybody else wires
up an 8 wire stepper.

Harvey

>
>Keith Clark
>
>--- In CAD_CAM_EDM_DRO@yahoogroups.com, "Keith Clark" <mail@t...>
>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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