Rsanalb Posted November 29, 2015 Report Share Posted November 29, 2015 I have this problem, I do a pointfile with 15 star, bat every 300-400 seg, the guidding jump 5-6 pix. Can you help me?. Thanks Link to comment Share on other sites More sharing options...
0 Rsanalb Posted December 20, 2015 Author Report Share Posted December 20, 2015 I'm hopeless with the mount. I climb picture and log, does strange things Link to comment Share on other sites More sharing options...
0 GeorgeCarey Posted December 20, 2015 Report Share Posted December 20, 2015 It looks like you may have a similar problem to one I had. See this thread http://forum.astrosysteme.com/index.php?/topic/526-what-does-this-mean/ Your RA axis has a rising current problem. When the current gets to 5A the mount does a slew to try and fix it. This is why your images show those spikes. This can happen because the balance is not good but sometimes it is because there is a mechanical problem with the mount such as a stiff bearing. I advise you to contact ASA. Link to comment Share on other sites More sharing options...
0 MarkS Posted December 21, 2015 Report Share Posted December 21, 2015 Your log shows both axes have higher current than they should. However, the log does not show that there has been a Position Error. I agree with George that you should contact ASA about this. But you should also check balance very carefully. With the DDM60 I would expect current on both axes to settle to around 0.8 - 1.2 amps within 10 minutes or so of starting to track. Mark Link to comment Share on other sites More sharing options...
0 Rsanalb Posted December 21, 2015 Author Report Share Posted December 21, 2015 Your log shows both axes have higher current than they should. However, the log does not show that there has been a Position Error. I agree with George that you should contact ASA about this. But you should also check balance very carefully. With the DDM60 I would expect current on both axes to settle to around 0.8 - 1.2 amps within 10 minutes or so of starting to track. Mark Thaks to both. I do that, balancing better and change the USB. I send you the results. THANKSSSSS¡¡¡¡¡¡ Link to comment Share on other sites More sharing options...
0 GeorgeCarey Posted December 21, 2015 Report Share Posted December 21, 2015 I plotted your motor currents. The rising RA current is plain to see: Link to comment Share on other sites More sharing options...
0 Rsanalb Posted December 21, 2015 Author Report Share Posted December 21, 2015 I plotted your motor currents. The rising RA current is plain to see: Thanks. I try this afternoon change my balance and the USB. This night i do again 20 stars and i try do a track. This night tall you Link to comment Share on other sites More sharing options...
0 Rsanalb Posted December 21, 2015 Author Report Share Posted December 21, 2015 Thanks. I try this afternoon change my balance and the USB. This night i do again 20 stars and i try do a track. This night tall you I have seen this afternoon that the mount does not exceed 1.4, 1.5 Amps, never goes out of them. Link to comment Share on other sites More sharing options...
0 GeorgeCarey Posted December 21, 2015 Report Share Posted December 21, 2015 Have you changed the balance? Link to comment Share on other sites More sharing options...
0 Rsanalb Posted December 21, 2015 Author Report Share Posted December 21, 2015 (edited) Have you changed the balance? Yes i do. I change USB, balance ( only have 5g of diference in DE) , i do a new autotune and now I try to track. Edited December 21, 2015 by Rsanalb Link to comment Share on other sites More sharing options...
0 GeorgeCarey Posted December 21, 2015 Report Share Posted December 21, 2015 When you are finished, send the log file and I can make a graph. Link to comment Share on other sites More sharing options...
0 Rsanalb Posted December 21, 2015 Author Report Share Posted December 21, 2015 (edited) When you are finished, send the log file and I can make a graph. I try again and it´s worse. each 3 min. I send you http://www.dselectronica.com/catalog/product_info.php?products_id=715, this is the transform. Log file Photo. I have, new computer a new USB, new balance, what else? jajajajajaaj 2015_12_21_20h21m.txt Edited December 21, 2015 by Rsanalb Link to comment Share on other sites More sharing options...
0 Rsanalb Posted December 21, 2015 Author Report Share Posted December 21, 2015 I think that this mount go to Austria. Link to comment Share on other sites More sharing options...
0 MarkS Posted December 21, 2015 Report Share Posted December 21, 2015 (edited) Looking at your latest file shows that the DE current is much lower, but RA current is still too high. Did you rebalance the RA axis? There are Position Errors after the RA current runs up to 5A. Balance the RA axis with the counterweight bar horizontal on one side. Then go to the other side and check it. Repeat two or three times until the difference between the sides is minimised. Post us the new log file. If this balance exercise fails to bring the RA current down, you will need to organise a remote session with ASA. They will advise whether the mount must go back to them. Mark Edited December 21, 2015 by MarkS Link to comment Share on other sites More sharing options...
0 Rsanalb Posted December 21, 2015 Author Report Share Posted December 21, 2015 (edited) Looking at your latest file shows that the DE current is much lower, but RA current is still too high. Did you rebalance the RA axis? There are Position Errors after the RA current runs up to 5A. Balance the RA axis with the counterweight bar horizontal on one side. Then go to the other side and check it. Repeat two or three times until the difference between the sides is minimised. Post us the new log file. If this balance exercise fails to bring the RA current down, you will need to organise a remote session with ASA. They will advise whether the mount must go back to them. Mark You are right. The wires are guilty. Tomorrow i try to balance again. Now i need thinks about that, its a problem. I HAVE 8¡¡¡¡¡. Thanks and I feel like a stupid Edited December 21, 2015 by Rsanalb Link to comment Share on other sites More sharing options...
0 GeorgeCarey Posted December 22, 2015 Report Share Posted December 22, 2015 your latest log: Link to comment Share on other sites More sharing options...
0 Rsanalb Posted December 27, 2015 Author Report Share Posted December 27, 2015 (edited) your latest log: The last log, i balanced all, tube, wire, motors........ the result is the red bars it´s pefectly balanced in both parts. Now i have: 1.- New computer 2.- New USB 3.- New Balance 4.- The same result the mount go when she wants to walk through space This is the last log 2015_12_27_16h40m.txt Edited December 27, 2015 by Rsanalb Link to comment Share on other sites More sharing options...
0 Rsanalb Posted December 27, 2015 Author Report Share Posted December 27, 2015 I dont understqnd that its the problem. Link to comment Share on other sites More sharing options...
0 robertp Posted December 27, 2015 Report Share Posted December 27, 2015 Hi, does your RA axis spin free and smooth when you have no scope attached? Does the axis feel uneven when you rotate it? And just to rule out simple issues: are the clutch fastening screws/rotation limits unscrewed (see product manual page 13)? Best regards, Robert Link to comment Share on other sites More sharing options...
0 Rsanalb Posted December 28, 2015 Author Report Share Posted December 28, 2015 (edited) Yes RA axis spin and the screws are unscrewed. thanks for you interested. Edited December 28, 2015 by Rsanalb Link to comment Share on other sites More sharing options...
0 MarkS Posted January 4, 2016 Report Share Posted January 4, 2016 Ask ASA for a remote session to identify the problem Mark Link to comment Share on other sites More sharing options...
0 Andrzej F. Posted January 9, 2016 Report Share Posted January 9, 2016 Hello I guess my problem is of the same nature. My mount ASA DDM60pro (serial no. 10110, production year 2012) makes the mistake on RA axis while using at low temperatures. The lower the temperature the more faulty exposures. Worst effects are observed in temperatures below freezing. In fact I am unable to take any pictures in such weather conditions. I can feel greater resistance on the bearing then. On the other hand, during spring while the air temperature exceeds 8 degrees Celsius, mount works without any disruptions. My two colleagues from Poland have experienced exactly the same issues and it appears the production dates of their mounts are the same as mine. I have performed two tests on my mount DDM60pro. First took place on 15th April 2015 and night temperature was 12 °C then. I haven’t observed any issues during taking photos. I did second test on 21st April 2015 and temperature was lower on that day: 6 °C. I noticed two exposures with errors: 1st exposure 600s, dated 21-04-2015, time: 23:09:51 2nd exposure 600s, dated 22-04-2015, time: 00:23:49 Below you can find photos taken on the same day during bad exposures at 600s as well as CIServoLogs file. For clarity I am providing a selection of CIServolog lines where tracking errors have occurred. -23:01:28 error 2.41 arcsec 7.3A -23:01:40 error 2.87 arcsec 5.0 A -23:01:46 error 21.85 arcsec 5.0 A -23:01:58 error 21.42 arcsec 5.0 A -23:02:04 error 84.91 arcsec 5.0 A, end of exposure 1 - 23:09:51 -00:15:11 error 1.77 arcsec 6.2 A -00:15:28 error 2.13 arcsec 3.8 A -00:15:40 error 2.71 arcsec 4.9 A -00:15:47 error 10.27 arcsec 5.0 A, end of exposure 2 - 00:23:49. Best Regards Andrzej 2015_4_21_20h58m (5).txt Link to comment Share on other sites More sharing options...
0 Waldemar Posted January 9, 2016 Report Share Posted January 9, 2016 Hi Andrzej, To me this sound like a mechanical problem, which can only be solved by ASA. I would contact them and make an appointment to send it back and have it checked by them. You are probably wasting time and get frustrated by trying to solv this yourself. Just explain to problem to them and let them solve it. Best regards, Waldemar Link to comment Share on other sites More sharing options...
0 Andrzej F. Posted January 10, 2016 Report Share Posted January 10, 2016 Hi Waldemar, At the beginning of April 2015 I have reported this issue to ASA. I was asked by them to send CISerolog file with the record of faulty tracking of my mount DDM60. I have sent them the CiServolog 2015_4_21 file (attached to my message above) as well as the pictures on 26th April 2015. To this day I have not received any reply to my query. Later on I found out that there are other Polish colleagues who experienced exactly the same problem with ASA mount DDM60. That's why I decided share my story on this ASA message board. Best regards, Andrzej Link to comment Share on other sites More sharing options...
0 Waldemar Posted January 11, 2016 Report Share Posted January 11, 2016 I have very good experiences with contacting Dietmar Weinzinger, Andrzej. (d.weinzinger@astrosysteme.at) Please try it, This takes almost a year now... I really admire your patience, but the problem should be solved. Best regards, Waldemar Link to comment Share on other sites More sharing options...
0 Rsanalb Posted January 12, 2016 Author Report Share Posted January 12, 2016 Thanks for your story, it's the same problem and the same temperature. someone has solved the problem? It is not just that it takes so long to respond it is not a Chinese mount or the price of a Chinese mount. Link to comment Share on other sites More sharing options...
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Rsanalb
I have this problem, I do a pointfile with 15 star, bat every 300-400 seg, the guidding jump 5-6 pix. Can you help me?.
Thanks
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