Message 28031 in TECH.WW
From: G8MNY
Date: Sun, 16 Aug 26 07:50:00 Z
Newsgroups: TECH.WW
Subject: Rotator Western WE1145 info
Message-ID: <2128_GB7CIP>
Path: K7EK|F1UBL|K1AJD|GB7BED|EI2GYB|GB7CIP
R:260816/0752z @:K7EK.#NOKY.KY.USA.NOAM $:2128_GB7CIP
R:260816/0752Z 15074@F1UBL.FRPA.FRA.EURO LinBPQ6.0.24
R:260816/0751Z 7156@K1AJD.#AUG.GA.USA.NOAM LinBPQ6.0.25
R:260816/0751Z 15963@GB7BED.#21.GBR.EU LinBPQ6.0.25
R:260816/0751Z 57726@EI2GYB.DGL.IRL.EURO LinBPQ6.0.25
R:260816/0750Z @:GB7CIP.#32.GBR.EURO #:2128 [Caterham Surrey GBR] $:2128_GB7CIP
From: G8MNY@GB7CIP.#32.GBR.EURO
To : TECH@WW
By G8MNY (Updated Nov 05)
(8 Bit ASCII graphics use code page 437 or 850, Terminal Font)
_.-'.- ' " `;_ _.-' | / \
.-' \__ . -'/_/.-' | 5 Wire (__________) ROTATOR
This is quite a complex circuit design with 2 relays etc.
DIAGRAM
X=No of Contacts o = PCB Connection * = External Connection
OPERATION
After rotating the HEADING pot to the desired direction and pressing the START
button the LED is lit. Then the CW RELAY (Clockwise) either operates or stays
released, this determines the AC phase direction selected for the motor. In
either case the RUN relay is powered until the balance point of the 2 pot
resistance bridge is reached when Q1, Q2, and the CW relay change state. The
RUN relay is then fast released with reverse power and the mains supply is
disconnected and the LED extinguishes.
Preset pots VR1 & VR2 set the scale length for both the HEADING & ROTATOR pots,
and should be set so that the rotator always stops before the mechanical end
stop is reached at either end of the HEADING pot.
MODS
As with other rotators the motor is well over run, so if you want more than 2
mins run time add a high wattage low value R (e.g. 8R 10W) in series with the
CW2 switch common, this will increase motor run time before it overheats or
burns out!
Why Don't U send an interesting Bul?
73 de John G8MNY @ GB7CIP
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