[TowerTalk] Why time delay on UST MDPL?

[Rick Karlquist]

Tod -ID wrote:
>  Rick:
>
> Isn't the time delay pluggable? There is too much snow between me and the
> tower base to want to check personally, but I would certainly hope it is
> easy to change if needed.

Yes, it is pluggable.  It will be interesting to see how
"responsive" UST is if I try to order a replacement relay :-)

> I had assumed that the time delay was to let any 'wind down' of the
> winch/motor assembly to happen before the motor tries to move things in a
> different direction. Although the rate at which everything is moving seems
> pretty slow I suppose there is something in the system with just enough
> inertia to put a serious load on the motor when it is trying to run in a
> different direction.
>
> To me the fact that your motor stalls when you change direction is indeed
> a
> 'clue'. One should allow things to stop moving before changing directions
> is

I can understand a situation where the motor is still moving in
one direction and you try to go the other direction.  But what
I am seeing is that the motor has stopped moving and I am merely
trying to start up again in original direction (IE, going up, stop,
then going up again).  The time delay evidentally prevents the
motor from stalling in this case, but I don't understand why it
would stall in the first place.

I'll plan on replacing the relay if diddling the time delay adjustment
pot does not bring it back.

Rick N6RK