my manually operated ( switched) motorized mdpl72 us tower does not
have such safeguards....
Sooo when i built my own remote i did put some 5$ ebay delay relays
to control the big motor relays... ..
Imagine while the tower is going up , and you flick the switch to
down.... it keeps going up. RUNNING AWAY as Joe puts it.
The only thing you did was take the appropriate limit switch out of
the circuit .... OUCH...
At 05:31 PM 8/30/2010, Joe Subich, W4TV wrote:
> > I don't know what the factory settings are - probably a bunch
> > of delay to keep "amateur" owners out of trouble. Set them anywhere
> > you want; I'd suggest a long delay and then turning it down until
> > you have a delay you can live with.
>Note, the delay is a safety measure to prevent the tower from
>"running away." A single phase motor will continue to run in
>the current direction it any time power is applied. Because of
>this, it is necessary to make sure the motor is completely
>stopped when reversing operation so the capacitor/start winding
>can "kick" it in the correct direction.
>When setting the delay you want to err on the long side ...
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