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General Mach Discussion / Re: Mach Crashed - won't restart after setting kernel speed too hi
« on: June 13, 2011, 06:16:15 PM »
No probs
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1) Is it ok to run shielded wire from the Gecko drives to the servo motors for the power? If so, should the shielding be grounded at the Gecko end?
2) Will regular wiring be ok from the bridge rectifier to the Geckos? I have them twisted in pairs to maybe cut down on noise or (EMF?). They are close to each other.
3)When putting the power wires and encoder wires in separate conduit. Is it ok to use metal flex conduit that isn't fluid sealed?
4) My encoders are the AMT-102 type from Digi-ikey. http://search.digikey.com/scripts/DkSearch/dksus.dll?vendor=0&keywords=AMT102-V
What setting should I use for starting out? Here are the switch settings and different resolutions. http://products.cui.com/CUI_AMT102-V_Dip_Switch_Settings.pdf?fileID=3816
Everyone says to use differential encoders for less noise. This particular encoder doesn't have A, A-, B, B-, etc. But, this is the encoder that Mariss Fremanis recommended for the Geckos.Differential is the ideal as it helps guard against noise, you could get a line driver and a receiver so that the majority of the wiring is differential but you will probably be ok as long as you take care to shield properly.
5) On grounding the shielding for all of these shielded wires: They have a pigtail soldered to the shielding at the end connected to the motherboard or breakout board. Should all of these be daisy chained together and then grounded to the cabinet?