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#1
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Good day all, I have a few Yaskawa Minertia DC servo motors, Part No. UGJMEE-02SJB31 I wish to know what wires are what on the encoder, there are 5 wires and a screen into a 6 pin plug, blue, brown purple,orange and white. Any others specs on these motors also appreciated. Thanks Greg www.hobbycnc.co.za |
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#2
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| There is some info for the motor in this document: http://www.yaskawa.com/site/dmservo.nsf/link2/TKUR-5ELHNF/$file/KAE-C240-0H.pdf For the encoder: did you open it? The Minertia I have has wire markings on the PCB. |
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#3
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| Hi Lucas, Thanks for the link, it doesn't have any info on the encoders though. There are no markings on the PCD. There is a capacitor on the board and I would guess that it goes across the power and that would leave A,B and I. Maybe I will just try. Thanks Greg www.hobbycnc.co.za |
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#5
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| Hi Nic, I opened the cover and determined the pin outs, I never did find a datasheet with the pinouts. I haven't used these motors as they were destined for a laser project, I bought a sealed laser tube last year Feb, it arrived in March, smashed to a thousand pieces. I submitted my insurance claim then and what followed can only be described as an exercise of sheer frustration! Once I had the mobile number of the CEO (he was dimissed two weeks after I got my cheque incidently) my claim was paid within a month, that was four weeks ago. I might restart my project now that the matter is settled but I am still shaking from the experience. (I won't go into details, maar ek is seker jy weet wat ek bedoel!)Greg |
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#6
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| Hi there, Glad the matter is at least settled ![]() I am trying to determine it myself but I am not very good at it I am afraid. Sat the hole night last night and still not sure what is going where. I will wait on your reply. Thanks in advance. Regards Nic |
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#7
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| Hi Nic, If your encoder is similar to my own, do this: Remove the cover and you will find a small capacitor across the power terminals (a small blue blob about 2mm square), mine were blue and brown, brown being positive and blue negative, connect a 5V (regulated) power supply across these and then connect any 2 of the other wires to an oscilliscope, when turning the motor you should see either 2 quadrature signals 90deg. out of phase in which case the third is the index pulse or you will see one quadrature and a single pulse per rev, the single pulse is difficult to see unless you can turn the motor really slowly. Hope this helps. |
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