Date   

Re: Lost control of declination with new firmware #UniversalFirmware

Wes Mcdonald
 

Liuz:

We need to rewind and start over.  Your thread listing is very long, and discusses disconnect.  This discussion began long before the latest update firmware.  This is worth noting.  Unless the present issues are different from those you linked to, one can surmise the issue lies somewhere in your particular situation/hardware (computer, cables, PMC8).  If the problem has persisted from the old firmware then you must have a hardware problem (my guess would be a cable).

Please add a signature to your account so we can see your equipment types.

1.  What is your PMC8 mount, an iexos 100 or an exos2?  The tread implies an iexos.

2.  If the issues in the thread are different than yours, please restate the exact issue.

Wes.



--
Wes, Southport NC
EXos2-GT PMC-8, iExos 100
ES ED 127, 10" LX200GPS+wedge, Astro-Tech 8" Newt, ETX-90, 60mm no-name guide scope ~ 260mm FL
Polemaster, Orion ST-80 and SAG, ZWO 290MM, D5300 astro modified
Nina, Bootcamped Mac Mini control computer, RDP to iMAC
110 amp hour lead acid deep discharge battery for field power
Electrical Engineer, Retired


Re: Lost control of declination with new firmware #UniversalFirmware

Andreas
 


Re: Lost control of declination with new firmware #UniversalFirmware

Jennifer Shelly
 

Luiz:

That is exactly what I experienced and I did not have an ST-4 cable plugged in.
--
Sincerely,

Jennifer Shelly
AstroPorch, VA

Mounts
: ES PMC-8 G-11, ES PMC-8 iEXOS-100
Scopes: ES ED127 FCD-100, Askar FRA 400, ES Levy Comet Hunter, ES N208CF, QHY Mini Guide Scope, Solomark F60 Guide Scope
Cameras: QHY600M, QHY128C, QHY168C
Misc: MoonLite CFL 2.5 / High Res Stepper / V2 Mini Controller, Baader SteelTrack NT / SteelDrive II, Baader UFC, Optolong 2" L-Pro / L-eNhance, QHY CFW3-L, Baader 2” LRGBSHO CCD
Imaging Software:  NINA, APT, SharpCap Pro
Processing Software: PixInsight, Lightroom, Premiere Elements


Re: Lost control of declination with new firmware #UniversalFirmware

Luiz Sanches
 

When this log was made, what app were you using to control the mount, and what hub did you use?
I ws using POTH, as you recomend (but the old problem that I mentioned in the post https://espmc-eight.groups.io/g/MAIN/topic/iexos_100_disconecting_from/78243484?p=Created,,,20,1,20,0::recentpostdate%2Fsticky,,,20,2,20,78243484&jump=1 never was fixed in POTH or Device Hub, even with the upgrade, only on Generic Hub this mentioned problem dont appear, reason why I all days use Generic Hub)
By any chance do you have your guide camera connected to the mount via the ST4 cable? If this is the case then that is what is causing the problem. The camera signal is being interpreted by the PMC-Eight as driving your mount West and canceling out the motion to the East.
I will try this in the next observing night.
Do you have your Sidereal Rate Fraction (SRF) set to 100 in the ASCOM driver also by any chance?
I never change. 


Re: Lost control of declination with new firmware #UniversalFirmware

Luiz Sanches
 

When this log was made, what app were you using to control the mount, and what hub did you use? 
For control RA and DEC, APT and Cartes Du Ciel or few times, Device Hub. (I prefer Generic Hub than POTH or Device Hub, and, with the new Upgrade, the arrows of Cartes Du Ciel don't work with Device Hub )
Was "continuous track with loss of comms" turned on?
Yes
Do you have an ST4 cable from your guide camera plugged in? 
No, I use PHD 2 with a computer.


Re: Lost control of declination with new firmware #UniversalFirmware

Jerry Hubbell - Explore Scientific VP Engineering
 

On Sat, May 8, 2021 at 12:28 PM, Wes Mcdonald wrote:
Interesting.  When this log was made, what app were you using to control the mount, and what hub did you use?  Was "continuous track with loss of comms" turned on?  You did not lose comms though.  I honestly don't know what could cause this.
Hi Luiz,

Wes has caught me up on your interesting problem. We have been discussing different failure modes that could cause the motor not to move even when issuing the ESTr commands as shown in the log. We came to the conclusion that your problem was impacting the motor driver portion of the firmware and is independent of the command. The driver not only handles changes to motor speed from commands, but also handles changes that come in via the legacy ST4 port which is via the PMC-Eight hardware. By any chance do you have your guide camera connected to the mount via the ST4 cable? If this is the case then that is what is causing the problem. The camera signal is being interpreted by the PMC-Eight as driving your mount West and canceling out the motion to the East. Do you have your Sidereal Rate Fraction (SRF) set to 100 in the ASCOM driver also by any chance?

We will have to go back and consider other failures if you are not using the ST4 cable between your camera and the PMC-Eight.

Thanks, looking forward to your reply.
 
--
Jerry Hubbell
Vice President of Engineering

Explore Scientific, LLC.
jrh at explorescientific.com

www.explorescientificusa.com
1010 S. 48th Street
Springdale, AR 72762
1-866-252-3811

Author: Scientific Astrophotography: How Amateurs Can Generate and Use Professional Imaging Data
             Remote Observatories for Amateur Astronomers: Using High-Powered Telescopes From Home


Mark Slade Remote Observatory (MSRO) IAU MPC W54 Equipment
Wilderness, VA
Mounts
: ES PMC-Eight G11 + Telescope Drive Master (TDM)
Scopes: ES 165 FPL-53 ED APO CF, ES 102 FCD100 ED APO CF
Cameras:  QHY174M-GPS + FW, QHY163C
Misc: 3-inch 0.7x Focal Reducer Field Flattener, Filters: Luminance,
Red, V-band Photometric, Diffuser, 200 lpmm Spectral Grating

Software: MaxIm DL 6, Cartes du Ciel, Astrometrica, AstroImageJ, AutoStakkert!


Re: Lost control of declination with new firmware #UniversalFirmware

Wes Mcdonald
 

Luiz:

Jerry and I have discussed this.  We believe your ST4 port  is a possible reason for this lack of response in the RA axis.  Is your Sidereal rate fraction set to 1 in the driver?  Do you have an ST4 cable from your guide camera plugged in?  In any event, please use the UFCT to disable ST4 guiding and see if the issue goes away.

Wes.

--
Wes, Southport NC
EXos2-GT PMC-8, iExos 100
ES ED 127, 10" LX200GPS+wedge, Astro-Tech 8" Newt, ETX-90, 60mm no-name guide scope ~ 260mm FL
Polemaster, Orion ST-80 and SAG, ZWO 290MM, D5300 astro modified
Nina, Bootcamped Mac Mini control computer, RDP to iMAC
110 amp hour lead acid deep discharge battery for field power
Electrical Engineer, Retired


Re: Lost control of declination with new firmware #UniversalFirmware

Wes Mcdonald
 

Luiz:

Well the log is helpful.  It does appear that the mount began refusing to track upon command at 10:38:13 and continued to refuse until 10:38:49.  That is a 36 second drop out.  The log indicates the tracking rate command being issued over and over again , the pmc8 responding with the correct response, but the reported position of the mount in RA was not changing.  As for the DEC axis, it seems it responded correctly at all times.  This is from analysis of the log you pointed out had the problem at 10:43.   Interesting.  When this log was made, what app were you using to control the mount, and what hub did you use?  Was "continuous track with loss of comms" turned on?  You did not lose comms though.  I honestly don't know what could cause this.  
--
Wes, Southport NC
EXos2-GT PMC-8, iExos 100
ES ED 127, 10" LX200GPS+wedge, Astro-Tech 8" Newt, ETX-90, 60mm no-name guide scope ~ 260mm FL
Polemaster, Orion ST-80 and SAG, ZWO 290MM, D5300 astro modified
Nina, Bootcamped Mac Mini control computer, RDP to iMAC
110 amp hour lead acid deep discharge battery for field power
Electrical Engineer, Retired


Re: Lost control of declination with new firmware #UniversalFirmware

Luiz Sanches
 

The Log when the problem happened is ASCOM.ES_PMC8.1031.363060 at 10:43


Re: Lost control of declination with new firmware #UniversalFirmware

Luiz Sanches
 

And the Logs


Re: Lost control of declination with new firmware #UniversalFirmware

Luiz Sanches
 

Yes Jennifer, I did.
Lock at the video that show the problem: https://youtu.be/K5RlaSSTyNk


Re: Lost control of declination with new firmware #UniversalFirmware

Jennifer Shelly
 

Did you follow the instructions below?


--
Sincerely,

Jennifer Shelly
AstroPorch, VA

Mounts
: ES PMC-8 G-11, ES PMC-8 iEXOS-100
Scopes: ES ED127 FCD-100, Askar FRA 400, ES Levy Comet Hunter, ES N208CF, QHY Mini Guide Scope, Solomark F60 Guide Scope
Cameras: QHY600M, QHY128C, QHY168C
Misc: MoonLite CFL 2.5 / High Res Stepper / V2 Mini Controller, Baader SteelTrack NT / SteelDrive II, Baader UFC, Optolong 2" L-Pro / L-eNhance, QHY CFW3-L, Baader 2” LRGBSHO CCD
Imaging Software:  NINA, APT, SharpCap Pro
Processing Software: PixInsight, Lightroom, Premiere Elements


Re: Doubts about alignment

Jorge
 

Thanks very much Wes. I'll keep trying... and I'll my info.. :) 


Re: Doubts about alignment

Wes Mcdonald
 

Jorge:

Hi, please add your info to your signature.

No, unfortunately when you polar align you must move the mount in azimuth and altitude mechanically, not by using the motors.  This requirement is not related to the pmc8 not remembering motor counts when powered off.  Rather, the polar alignment is done to get the RA axis pointing directly along the earths axis of rotation.  When this is done, rotation of the RA axis does not change the fact it is parallel to the axis.  One can get the scope to point to any point in the sky no matter how the RA axis is aligned...but when the axis is rotated the pointing angle relative to the axis will change, which means the mount cannot track stars.

If you are using the iexos for visual, physical polar alignment need not be very good, rather you can use the virtual alignment provided by the 2-3 star alignment procedure built into Explorestars.  What happens is that during the alignment process,  Explorestars computes a model that tells it how to translate between sidereal coordinates and mount motor counts for all places in the sky, even whn the RA axis is not perfectly aligned.  By using this model Explorestars can find objects, and continually adjusts both the RA and DEC axies to point where the object is at any given time -- this is done when EXplorestars is employing "P" mode, for Point mode.  

Explore Scientific does sell an azimuth adjuster ring which can be added to your iexos.  I bought one, and many others have reported they have on the forum.  It works quite well and allows you to get polar aligned in azimuth easily, at least more easily that without it.

Hope this helps,
Wes.


Virus-free. www.avg.com

--
Wes, Southport NC
EXos2-GT PMC-8, iExos 100
ES ED 127, 10" LX200GPS+wedge, Astro-Tech 8" Newt, ETX-90, 60mm no-name guide scope ~ 260mm FL
Polemaster, Orion ST-80 and SAG, ZWO 290MM, D5300 astro modified
Nina, Bootcamped Mac Mini control computer, RDP to iMAC
110 amp hour lead acid deep discharge battery for field power
Electrical Engineer, Retired


Doubts about alignment

Jorge
 

Hi all, let me ask the experts a silly question.

I have iEXOS-100 without polar finder nor azimuth adjust adapter, but I have a CCD and I'd like to use sharcap for the alignment.

I can see the polar in the field and it is supposed I have to move the entire tripod to make the azimuth adjustments to align to CP (and the altitude as well . My question is: can I switch on the mount and make the AZ adjustments moving the mount via Cartes du Ciel, p.e., and, once sharcap says it's good or excelent, switch off the mount and switch on again so that the position is reset and being aligned to CP? I know  I have to adjust the altitude manually, but it's frustrating moving the entire tripod to get CP alignment without th AZ adjuster.

Thanks and regards!!


Re: Lost control of declination with new firmware #UniversalFirmware

Luiz Sanches
 

Thank you Jennifer. Last night I had many problems when I was taking photos of jupiter e I needed to move constantly the mount. I will record a video showing the problem.


Re: Pulse guiding settings. #ASCOM #EXOS2

 

Thanks, Jennifer!

Yes, yes it is an adventure, and this is just a simple F5!  I did have a small dob, a couple of decades ago, but this is a different world. 

There was some clear sky here a few weeks ago, just enough to give me an idea of how much trouble I was in.  :-))

Collimation, plus coma corrector spacing, plus an edge that needed masking, etc...  I did get Menard's book, and have made enough progress indoors that I'm ready for another outdoor session, if the skies here ever clear. 

- Bob


On Mon, May 3, 2021, at 09:25, Jennifer Shelly via groups.io wrote:
Bob:

Will this be your first Newtonian?  If so, you have a new adventure to embark on....collimation which can be challenging at times.  I highly recommend reading anything written by Vic Menard who is the king of collimating Newtonians.  Cat’s Eye collimation tools are a good investment as well.
--
Sincerely,

Jennifer Shelly
AstroPorch, VA

Mounts
: ES PMC-8 G-11, ES PMC-8 iEXOS-100
Scopes: ES ED127 FCD-100, Askar FRA 400, ES Levy Comet Hunter, ES N208CF, QHY Mini Guide Scope, Solomark F60 Guide Scope
Cameras: QHY600M, QHY128C, QHY168C
Misc: MoonLite CFL 2.5 / High Res Stepper / V2 Mini Controller, Baader SteelTrack NT / SteelDrive II, Baader UFC, Optolong 2" L-Pro / L-eNhance, QHY CFW3-L, Baader 2” LRGBSHO CCD
Imaging Software:  NINA, APT, SharpCap Pro
Processing Software: PixInsight, Lightroom, Premiere Elements


--
Mounts: ES PMC-8 EXOS2, Serial
Scopes: SW 130P-DS, SV 102EDT, ZWO 60/280 Guide
Cameras:  Nikon D5300, Altair GPCAM2 290M
Software: ASCOM 6.3, CdC, AstroTortilla, BYN Pro, Sharpcap, PHD2
Computer:  Thinkpad x230, Win7Pro/64


Re: Pulse guiding settings. #ASCOM #EXOS2

Jennifer Shelly
 

Bob:

Will this be your first Newtonian?  If so, you have a new adventure to embark on....collimation which can be challenging at times.  I highly recommend reading anything written by Vic Menard who is the king of collimating Newtonians.  Cat’s Eye collimation tools are a good investment as well.
--
Sincerely,

Jennifer Shelly
AstroPorch, VA

Mounts
: ES PMC-8 G-11, ES PMC-8 iEXOS-100
Scopes: ES ED127 FCD-100, Askar FRA 400, ES Levy Comet Hunter, ES N208CF, QHY Mini Guide Scope, Solomark F60 Guide Scope
Cameras: QHY600M, QHY128C, QHY168C
Misc: MoonLite CFL 2.5 / High Res Stepper / V2 Mini Controller, Baader SteelTrack NT / SteelDrive II, Baader UFC, Optolong 2" L-Pro / L-eNhance, QHY CFW3-L, Baader 2” LRGBSHO CCD
Imaging Software:  NINA, APT, SharpCap Pro
Processing Software: PixInsight, Lightroom, Premiere Elements


Re: Pulse guiding settings. #ASCOM #EXOS2

Wes Mcdonald
 

Bob

It’s gonna be great. In the end it’s only gonna have more sail area to deal with.  The rest is incidental to the mounts performance in my view

Wes


--
Wes, Southport NC
EXos2-GT PMC-8, iExos 100
ES ED 127, 10" LX200GPS+wedge, Astro-Tech 8" Newt, ETX-90, 60mm no-name guide scope ~ 260mm FL
Polemaster, Orion ST-80 and SAG, ZWO 290MM, D5300 astro modified
Nina, Bootcamped Mac Mini control computer, RDP to iMAC
110 amp hour lead acid deep discharge battery for field power
Electrical Engineer, Retired


Re: Pulse guiding settings. #ASCOM #EXOS2

 

Wes,
 
Thanks!  No, the FL is almost the same, so that shouldn't be a problem.
 
My venerable SV 102EDT is 621mm (without reducer), and the 130P-DS is 650mm, with a 1.0 coma corrector, so almost the same on that score.  I may pick up a bit of resolution, but that's all.  
 
I know... why change if the FL is the same and the resolution will be close?  Color.  The EDT's color correction is excellent for a non-APO, but it ain't an APO, and when I bought it an L-Extreme for nebula work, that was that.  Time for better color convergence.  :-))   
 
The folks on the other side of the pond are pretty fond of the 130P-DS for imaging, and even with a good coma corrector, it's still much less expensive than a good APO, so I shipped one in, and here I am, and we'll see how this works out.
 
- Bob
 
 
 
--
Mounts: ES PMC-8 EXOS2, Serial
Scopes: SW 130P-DS, SV 102EDT, ZWO 60/280 Guide
Cameras:  Nikon D5300, Altair GPCAM2 290M
Software: ASCOM 6.3, CdC, AstroTortilla, BYN Pro, Sharpcap, PHD2
Computer:  Thinkpad x230, Win7Pro/64

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