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Old 02-19-2021, 01:40 AM   #41
CBoulic
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Default Re: Mitsubishi Melservo MR-J2S-100A alarm: AL.E9

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Originally Posted by Per Hansson View Post
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Your servo also has the LCD display, it is just in another location.
Yes it has a LCD display , 2 digit but no button on face to access in the internal menu. i believe this model is only drive by numerical bus.


Yesterday i order lot of components (opto cap)
i will change it step by step !
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Old 02-19-2021, 10:20 AM   #42
Per Hansson
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Default Re: Mitsubishi Melservo MR-J2S-100A alarm: AL.E9

Ok, you can always connect via serial, see post #12.
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Old 02-26-2021, 08:23 AM   #43
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Default Re: Mitsubishi Melservo MR-J2S-100A alarm: AL.E9

Hello, I have good news on my model I replaced the caps and the IO12 optocoupler a TLP621 (he had a little brother, which I also changed), it was the right solution my system is again operational. Thank you for your help !
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Old 02-26-2021, 11:24 AM   #44
Per Hansson
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Default Re: Mitsubishi Melservo MR-J2S-100A alarm: AL.E9

Nice, thanks for posting the solution.
It might be a good idea to get the communication cable.
So you can actually check the bus voltage and be 100% sure of the fix
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