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HAM ©
2016
All rights reserved
Rotator Port
The ROTOR port connects to external rotator hardware. There are three (3)
SPDT relay contacts for controlling CW and CCW direction and AUX for
custom purpose (BRAKE or SPEED), analog pot input, pulse contact input,
reference output for pot and 12V output for external power relays.
NOTE:
The Rotor port does not provide power for the motor. The original
controller or an appropriate replacement power supply is required for
commercial rotators.
IMPORTANT:
The maximum rating for the CW, CCW and AUX relay contacts
is 24V AC/DC, 3A. If greater capacity is required, use external 12V DC
relays. Pin 1 su12V DC which can be used to power external
relays.
To the right are examples of the
connection for home brew AC and
DC motors. Only one type of
position sensor is needed. For
analog systems, 500 ohms
provides proper power supply
loading and optimum immunity to
RFI. However, any value from 500
to 5K ohm is acceptable.
IMPORTANT:
Don't forget to
protect motor supply with a
fuse! The fuse will protect
relays contacts as well.
Commercial rotators can be connected two ways. Rotators with
an external control port as Yaesu DXA or DXC series can be
connected as shown here.
Commercial rotators without external control ports will require
connections inside original controller. Please refer to the
manual of your rotator or ask us for help.
88
Simplified schematic of ROTOR port
Connection to Yaesu DXA/DXC rotator series.
Typical connection for an AC motor
Typical connection for a DC motor
