Date: Sun, 19 Jul 2020 10:32:55 -0500
From: Edward stallman <ed.n5dg@gmail.com>
To: towertalk@contesting.com
Subject: [TowerTalk] Problem with M2 Orion controller
<Had a car hit a power pole , this created mutable rapid power surges .
<My RC-2800P-A controller has not worked properly since . Before buying a
<Green Heron controller I need to be sure the pulse counter in the rotor
<is still good.
<The first time I turned the controller on after the surge , the rotor
<started turning immediately as soon as I pressed the (CW) went to (L
<346.0 ) Limit .? Pushing the CW / CCW does nothing . Using one of the
<ten presets , I used the 30 degree , the rotor turned 30 deg and counted
<on the controller from the (L_346.0) limit , now reading 16 deg ... What
<ever preset I use , the rotor turns that much from say 16deg . Pressing
<and holding the MODE up arrow in hope to program the numbers only makes
<the 16 deg jump back to (L_346.0)? .
<I checked the MOV across 5 and 6 ,? and I also have the 11.3 VDC across
<5 and 6
<If I'm counting numbers while using the presets , would you think the
<pulse counter at the rotor is good ? Is their a way to test the pulse
<counter using the 2 leads in the shack ?
<Not trying to repair the Orion controller but hoping the Green Heron
<will work if I buy one
<Thanks Ed N5DG
## Which version of the M2 controller, do you have ? The latest version
is called a RC2800PXAZ..and uses a switching supply...good from
88-264 vac.
## Does your controller have a MOV on the 120 vac input ? Mine doesnt,
thats most of your problem right there. The 130 vac rated mov can installed
inside
the controller, between hot 120 leg...and chassis. For the price of the
controller box,
you would have thought they woulda spent the extra 1 dollar, to install a HD
MOV
across the incoming 120 vac.
## Ideally, you want MOVS right at the main 200A entrance panel. Typ they
will use
a 2 pole breaker installed into a spare slot in main panel.... then cabled
over to commercial
MOV box. MOV box will consist of 2 x 130 Vac MOVS, one from each hot
leg..to neutral.
## Then, everything in the home is protected. Otherwise, you could easily
get a repeat performance.
make sure the GH box has a MOV across the incoming 120 vac line too.
Jim VE7RF
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