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Post by clyevo on Nov 20, 2015 13:48:17 GMT
So my current setup is P 18 I 0 D O Motor speed is 100% Acc/dec ramp of inverter is set to 0.1sec I reduced the oscillation at parking with "motor min speed" 9hz And i am convinced that the axis 1 sensor is faulty during this video in which there is travel between sensor position, probably loosed internals of the sensor causing the axis 1 arm to overshoots all the time
Does anyone thinks it can be improved if i add misalignment spacers to increase the angle of movement? I set acc/dec ramp to 0.1 sec only because 0sec settings are to bumpy. There is no acc/dec overcurrent fault even at 0 sec, maybe because power to load ratio is too high (my motor is 1.5kw)? I am not even using the brake resistors. Should i installed it anyway?
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Post by clyevo on Nov 28, 2015 8:16:06 GMT
i am having problem with the extension board of the analog output 0-10v, the 1st axis always produce 14v on rest position while the other 5 axis produce 0.00-0.02v. When i turn the sensor of each of the analog output, analog signal will of course increase to correct the displacement : 1st axis will go up to 23v while the others will be at most 5v. So i conclude there is something wrong with the 1st axis analog output. Can you tell me which chip is responsible for giving this analog signal. Btw i am using 24v power supply. Thanks tronicgr
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Post by tronicgr on Nov 28, 2015 14:51:57 GMT
Hi Haliff, The analog outputs should not go over 9.6v the most. That could happen if the LM324 IC gone bad, or the setting resistors for that axis are not matching (should be 10K each). The Axis 1 analog output is located on the top LM324 IC, on the photo below you could see there is some numbering for each axis on the side of the ICs. Also, you can remove the LM324 IC from its socket and swap it with the other LM324 IC below it, to see if the issue transfers to analog output 5, in that case the LM324 IC is bad. I mark the Power ICs with RED arrows, and the 0-5v analog and digital outputs with BLUE arrows. Another thing you can do is to check the 0-5v outputs as well. For analog and Digital outputs to make sure the logic part is ok. Follow this video how to properly check the outputs: www.youtube.com/watch?v=aUoZ_3tSuNkI would suggest replacing the LM324 chips and the ULN2981 chips if you have any problems. You can find those easily, if not see some links: www.ebay.com/itm/171060432792?_trksid=p2059210.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AITwww.ebay.com/itm/10PCS-LM324N-LM324-DIP-14-TI-Low-Power-Quad-Op-Amp-IC-/130963517925?hash=item1e7e08b1e5:g:cZ0AAOSw2s1UrQFMI'll include some extra of these IC for you in the package I'm going to send you, but if you can't wait, see the above links. Thanks Thanos
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Post by clyevo on Nov 28, 2015 16:29:39 GMT
Hi Haliff, The analog outputs should not go over 9.6v the most. That could happen if the LM324 IC gone bad, or the setting resistors for that axis are not matching (should be 10K each). The Axis 1 analog output is located on the top LM324 IC, on the photo below you could see there is some numbering for each axis on the side of the ICs. Also, you can remove the LM324 IC from its socket and swap it with the other LM324 IC below it, to see if the issue transfers to analog output 5, in that case the LM324 IC is bad. I mark the Power ICs with RED arrows, and the 0-5v analog and digital outputs with BLUE arrows. Another thing you can do is to check the 0-5v outputs as well. For analog and Digital outputs to make sure the logic part is ok. Follow this video how to properly check the outputs: www.youtube.com/watch?v=aUoZ_3tSuNkI would suggest replacing the LM324 chips and the ULN2981 chips if you have any problems. You can find those easily, if not see some links: www.ebay.com/itm/171060432792?_trksid=p2059210.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AITwww.ebay.com/itm/10PCS-LM324N-LM324-DIP-14-TI-Low-Power-Quad-Op-Amp-IC-/130963517925?hash=item1e7e08b1e5:g:cZ0AAOSw2s1UrQFMI'll include some extra of these IC for you in the package I'm going to send you, but if you can't wait, see the above links. Thanks Thanos I did like you describe and 0-5v analog is fine. But the 1st axis is 14v like i said before. When i change swap the chip, the 5th axis is 14v. So one of my LM324 chip is damaged. What is the possible explanation for the damage? Could it be the 1st inverter causing overcurrent on the 1st analog output? Thanks for including the chip in the package, its hard to find this thing locally. I ll try ordering from aliexpress since its cheap in case you ship the package late. BTW i am using relays so the udn2981 is not needed. I probably can try using uln2803 in the future because of the annoying sound from the relays.
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Post by tronicgr on Nov 28, 2015 17:23:56 GMT
Its rare for the LM324 ICs to get damaged, as they are not carrying any current (a few mA), it could be damaged from static electricity or if you set the inverter in Current input for reference instead of voltage. But still these chips can withstand voltages up to 30v!
Thanks Thanos
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