Paraclipse 3.8 on H to H mount restoration/installation

Discussion in 'C-BAND Satellite Discussion' started by martin-f, Oct 16, 2017.

  1. martin-f

    martin-f Topic Starter SatelliteGuys Family

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    Hi, put power the motor yesterday it working perfect, one issue I did notice I was getting sensor error on the TIT maybe read switch needs replacing/the TITs not compatible ?

    Titanium, Hi Brian any suggestions please,
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  2. martin-f

    martin-f Topic Starter SatelliteGuys Family

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    Checked the dish ribs for anything misshaped all perfect :), pressed bottom oilite bushes in and cleaned shaft.
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  3. Titanium

    Titanium AI6US
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    Is the sensor a reed switch? If not, use the optional OHR adapter to interface with Hall effect or optical sensors.

    Are sensor switch cycles present? Reed switches are often magnetized during long periods of inactivity (parked against a magnet) and could require replacement.

    If a reed switch, use an analog tester in resistance (continuity mode) or a scope to see if the sensor switch is opening/closing. Might use a 12Vdc battery to slow down the motor movement and make the switch cycle observation easier.

    Also note: The HH motors are often quite RF noisy especially as the motors age. Be sure that the motor has a capacitor installed across the terminals, use shielded sensor and servo distribution wire, if needed, reroute the sensor wires away from the motor inside the housing and make sure the sensor terminals are located on the far side of the strip away from the motor.
     
    #43 Titanium, Oct 26, 2017
    Last edited: Oct 26, 2017
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  4. martin-f

    martin-f Topic Starter SatelliteGuys Family

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    Thank you Brian its this motor, I'm not familiar with it and not the best with wiring now days,
    gggggfffddsssa.PNG

    You did send me the OHR adapter
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    I've picked the sprockets up I need to drill the two side ones out to fit over the pins,
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  5. martin-f

    martin-f Topic Starter SatelliteGuys Family

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    Hi a bit of an update, i am just about ready for building the H-H back up.
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  6. martin-f

    martin-f Topic Starter SatelliteGuys Family

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    Hi Brian I picked these 100 Volt ones up today I just want to make sure I have the correct item for the job ?,

    I'm presuming I could get a little circuit board to plug them into and solder up to keep things nice and neat, any pictures how others have connected them would help if possible please.
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  7. martin-f

    martin-f Topic Starter SatelliteGuys Family

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    A few pictures how things are coming along.
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  8. martin-f

    martin-f Topic Starter SatelliteGuys Family

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    Forget about that, looking more closely I will splice it in inside the motor probably best place for it.
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  9. Titanium

    Titanium AI6US
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    The capacitor could be placed anywhere on the motor leads. Either as the last photos depicts or even as simple as across the terminal strip connections.

    Speaking of terminal strip. Magic Static and I discussed long ago that some terminal strips were installed with the reed switch lead terminals placed next to the motor and the motor leads on the far end. This routed the sensor leads against the motor and exposed the circuit to increased electrical noise. Got into the habit of flipping the terminal strip so the motor leads are nearest the motor and the sensor lead are routed to the reed switch further away from the motor.
     
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  10. martin-f

    martin-f Topic Starter SatelliteGuys Family

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    Many thanks for getting back to me Brian I will place it inside the motor the closer I get it the better,

    I will replace the thermal strip for something more modern and only use one side furthest away from the motor to connect the wires thanks again.
    sssss.PNG
     
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  11. Greg Mueller

    Greg Mueller Munich Oktoberfest
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    Excellent project!
    Well done!
    I've always lusted after the big Paraclipse Dishes.

    Maybe I'll have to talk the wife in to cruising some of the back roads with me around out new house in NM
     
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  12. martin-f

    martin-f Topic Starter SatelliteGuys Family

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    Many thanks i do hope you find one, a very rare dish here in the UK probably the only one.
     
  13. satwrench

    satwrench New Member

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    I have several of these for 3.8 cog drive,they were upgrades from Paraclipse there new and are free
     

    Attached Files:

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  14. martin-f

    martin-f Topic Starter SatelliteGuys Family

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    Hi ive been busy with other projects but managed to find time to jet wash most of the dish down today,
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    Next job is fabricating a wind up/down tilt over tower, something similar to this,
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    Obviously the up/down movement needs to be rigid unlike a radio ham tower, i have devised a method on how i will do this, basically i will be using 20 stainless steel roller bearings
    20180328_181133.jpg

    These will hold a 6x6 inch box section a winch will raise and lower the dish.
     
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