Parallax Servo Controller and Girder - AVS Forum
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post #1 of 7 Old 09-22-2011, 11:57 AM - Thread Starter
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Hello,

I am wondering if anybody has integrated girder and the parallalx servo controller. I am looking to used this for servo control of my hvac system and would love to be able to drive these from girder.

Thanks,

Greg
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post #2 of 7 Old 09-22-2011, 11:58 AM - Thread Starter
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...also, I am open to anything where the servo controller has been integrated with Homeseer as well.
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post #3 of 7 Old 09-22-2011, 11:58 AM - Thread Starter
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I forgot to mention that eventghost would be an option as well.
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post #4 of 7 Old 09-22-2011, 02:06 PM
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You've captured my attention. I have used a serial (Pololu) servo controller in a automated projection screen project I was working on with great results.
I'm curious what value or application where a servo would be needed in a HVAC system. Are you looking for a cheap way to make dampers???

Current owner of the last/best AmPro on the planet. The mighty 4600HD, and it's still running...better than Barco's, especially southern ones.
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post #5 of 7 Old 09-22-2011, 06:55 PM - Thread Starter
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I have the dampers and have modified to servos for greater modulation. The standard motor on the damper was fully opened or closed. I have pressure transducers where I can achieve equilibrium for the system. I have seen the diy zoning package which runs on linux. I was hoping to achieve something similar using my windows server.

Thanks,

Greg
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post #6 of 7 Old 09-24-2011, 11:29 AM
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Probably the most important thing you need is a weighted by-bass damper between the supply and return so that airflow over the coil is not effected by zoning.

There are many multi and single (or less) turn servo's that you could use. You just need to understand the serial protocol required to make it do what you want. Keep in mind the torque requirements for the damper you are modding

Look at the HiTec HS-785HB sail winch servo. IT's small, powerfull and provides up to 3 full turns with positioning feedback

Current owner of the last/best AmPro on the planet. The mighty 4600HD, and it's still running...better than Barco's, especially southern ones.
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post #7 of 7 Old 08-11-2012, 10:34 AM
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You got my attention as well. I have implemented the parrallax controller into homeseer with perfect results and widely configurable thanks to a user on their forum. I never went back and updated any results, Slacker. But now that it has been in test for the past 6-8 months it is safe to say it works for my applications.
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