AlfaSpid Rotator
www.alfaspid.com
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Page 6 of 23
A
lfa Radio Ltd. 11211 - 154 St. Edmonton, Alberta, Canada T5M 1X8 780 466 5779
Wiring Connections
The rotator unit must be wired to the control unit with 4-wire cable. The gauge of
the 4-wire cable to connect the control unit to the rotator depends upon the distance
between rotator and controller. The wire for the impulse sensing may be quite thin -
#22 or similar, even for relatively long distances.
Length
Gauge
Motor
10 m (32')
#18 (1.19 mm)
30
m
(100')
#16
(1.42
mm)
60
m
(200')
#14
(1.75
mm)
Remove cover from the motor body as shown and make connections as follows:
1 Motor Drive to 1 on controller terminal
2 Motor Drive to 2 on controller terminal
3 Impulse Sense to 3 on controller terminal
4 Impulse Sense to 4 on controller terminal
We suggest that the coax from the antenna be made with extra length to allow for
the “Over Travel” 720 degrees in total. You may wish to also allow for the coax to
come off the “South” side of the tower ( 180 degrees ).
CAUTION!:
Do not accidentally switch
the motor wires with the
impulse wires. Damage to the
control unit may occur!
Installation
