[TowerTalk] Yaesu rotator problem

[Per Molund]

Steve,

I am not quite sure how You have wired up the rotator. As far as I know, the
G-800S, G-1000 use the same wiring, and they need minimum 5 wires.
The indicator use 3 wires, 0V,  5V and one for the feedback from the pot
meter. In addition You need two wires for the motor, this is floating 
DC voltage
12-24V depending on model (plus and minus depends on turning direction).
There is no common ground shared between the indicator and the motor.

In the G-2800 there is also a sixth wire which are connected to an additional
pair of limit switches.

regards,
---per
LA9XKA





At 17:48 21.10.2005, K7LXC at aol.com wrote:
>Howdy, TowerTalkians --
>
>     I ran into a problem that's got me stumped. I've got a Yaesu G-800
>rotator that doesn't seem to work. It was not tested prior to 
>installation on the
>tower but I haven't ever had any infant mortality problems with 
>Yaesus so maybe
>it's something on our end.
>
>     I think I remember that Yaesu rotators changed voltage systems 
> recently -
>they went from ac to dc or vice versa - I don't remember which, but the
>result is that instead of using 6 wires, now they only use 4. Which 
>is fine except
>they don't tell you that in the instruction manual so you wind up soldering 4
>extra wires (2 on each end) that aren't needed. And they're not the easiest
>buggers to work with in the first place. :-(
>
>     Anyway, we got the 4 wires hooked up and it doesn't work - no rotation,
>no indication, etc. We've got power and had to replace the little internal 3A
>fuse but as Mark would say, no worky worky. We couldn't find any pin-out
>measurements like you find with Hy-Gain rotors so we couldn't do any 
>measurements.
>Can anyone give us any simple measurements/tests we can do? We haven't run a
>cable continuity check but I haven't had that sort of problem before 
>but I'm not
>ruling anything out.
>
>     Any help appreciated.
>
>Cheers,
>Steve    K7LXC
>TOWER TECH
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