I'm running a fairly straight-forward imaging system with a Skywatcher AZEQ6, Explore Scientific 127ED, and a 50mm guide scope. The QHY 163C camera and QHY 5LII mono guide camera are connected through a 12V powered USB hub on the main scope. The hub and mount are each directly connected to a brand new ASUS Windows 10 pro laptop via their own USB cables (EQDIR in the case of the mount). I'm controlling everything with NINA 1.10, the latest build. 12.8 volts of regulated DC power are supplied by an Alinco dm-340 switching power supply. I have been using NINA with this set-up for about 6 months, mostly very happily, getting it to successfully plate solve, focus, and execute sequences on targets. It has been a joy to use until the past week or two.
Over the past three imaging sessions I have been getting a persistent cluster of issues in NINA which I think may be all related. I dearly hope someone here can help me determine the cause.
1. My main imaging camera seems to work properly for between 5 and 10 minutes or so (starts to cool to reach its set-point for imaging, will collect images for plate solving and auto focusing which NINA displays) but then appears to begin a series of random wild temperature and power swings, with temperature readings of 6000C, all of this displayed on the NINA camera panel. It stops delivering images either from a sequence or from a snapshot command. The camera appears to be maintaining its connection to the laptop via USB, but according to NINA, is seriously misbehaving.
2. PHD stalls out. The program opens initially on cue from NINA, connects the camera, picks a guide star, and loops patiently waiting for the command from NINA to start guiding, but at the same time the imaging camera goes nuts, PHD stops responding. The image loop stops and freezes and is unresponsive, or upon hitting the stop button, stalls out saying "Waiting for devices...".
In trying to address this, I have updated the camera drivers; changed out the EQDIR and main USB2 cable from the hub; changed the power cable to the imaging camera. I've tried most things I could think of but problem persists. This is additionally perplexing because I have no idea what might cause this stuff to happen, whether it is one problem or several working in tandem.
Any clues or suggestions?
I'm thinking I should try a different power supply or battery power to eliminate the Alinco as a possibility, and different control software like APT or SGP to manage the integration and sequencing.
Thanks in advance,
Edited by siriusarcher, 11 August 2020 - 01:27 AM.