Re: #Keypad Park Positions: AP 1100 GTO with encoders #Keypad
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You have basically a permanent setup and I believe you are missing a fundamental fact about the mount CP4 controller. The fact is that the controller always knows where the mount is pointed, even after the power is removed. That assumes that you do not take the telescope off the mount and disturb the positions of the axes by loosening the clutches. Therefore, once you have established the mount's position in the sky by having it go to a known object and doing a Recal on it, then all other positions will be correct. There is never a need to go to a known park position and doing a "Resume from Park X" routine.
The absolute simplest and most foolproof way to operate your mount is to change the setting in the keypad from Autoconnect "NO" to Autoconnect "YES". This will insure that the logic in the mount servo controller is always in charge of the operation and is never fooled by human error during startup. With Autoconnect YES the mount will start automatically and will never be lost or go to wrong park positions. You can move your mount on the dolly and it will not change the mount's internal calibration - as long as you never loosen the clutches and move the axes manually.
You have a permanent setup, which is defined as having the telescope attached to the mount and never removed and not disturbing the axes by loosening the clutches. Therefore the best, easiest and most sure-fire way to start your mount is to allow the mount's controller to determine where the axes are, and not over-riding this internal knowledge by starting manually every time. Set the keypad to Autostart YES and your startup will be seamless and accurate every time. Of course you can park your mount at any of the park positions at the end of your session, even Park 1 if that's where the setup clears your roof. Autostart YES will take all that into consideration, EVEN if the mount is parked with counterweight up and past the meridian!!
IMPORTANT: as long as you never loosen the clutches and move the axes manually.
We put a lot of smarts into the CP4 controllers in order to make operation of the mount as simple as possible. You take advantage of that by setting the keypad to Autostart "YES". If you always start with Autostart "NO", then you are throwing away all the smarts that are built into the mount, and it becomes just another mediocre mount that needs a lot of babysitting to get it going every night. Does all this make sense to you?
From: Thomas Giannaccini <tgiann3@...>
Sent: Wed, Sep 22, 2021 11:42 am
Subject: Re: [ap-gto] #Keypad Park Positions: AP 1100 GTO with encoders
The mount and pier are on a motorized dolly. The dolly moves about 20-30 ft. I have not taken the setup apart yet but in the future, yes, it will be disassembled and substantially moved.
I think updating the keypad to Park 5 and using the sequence you suggested will go a long way.