All of my rotators use a soft start and stop so yes I would recommend this
feature. In my case I use all Green Heron rotator controllers which have
an adjustable ramp speed. I believe that it pulses the voltage while
ramping but I could be wrong. I am not sure if this controller can be made
to work with your large base rotator. I would contact Jeff at Green Heron.
GL,
John KK9A
To: "'towertalk@contesting.com'" <towertalk@contesting.com>
Subject: [TowerTalk] rotating tower or stack : rpm
From: Richard Riley <Richard.Riley@tango.hr>
Date: Wed, 4 Oct 2017 16:54:16 +0000
Hi guys,
my previous post (reference soft-start and frequency regulation of motor on a
rotating tower) drew no responses :( :(...
...so I'll try it from another angle. I'm about to erect 102ft of 20inch-
to-
a-side, triangular rotating tower (loaded with 12-15m boomed monobanders from
40-10) on a 3 phase motor, with a projected speed of 1rpm..and am concerned
about the potential for start/stop stress.
You have a large stack or a rotating tower.
How fast does it rotate?
Have you employed a soft-start-stop system to prevent mechanical shock?
If so, what did you choose?
Your input appreciated!
73 9a1tt
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