RC4500 Antenna Controller Chapter 3 Mechanical & Electrical Installation
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3.4.2.2 Motor Drive
The RC4500 drive section is designed to drive azimuth, elevation and polarization motors up to 24 volt
DC. The absolute maximum allowed motor current is 10 Amps. The motor drive module supports IR
compensation, current limiting, adjustable acceleration / deceleration profiles, dual speed operation and
dynamic braking. The drive train is also protected with resettable fuses.
The motor drive terminal blocks can accept wire diameters up to 10 AWG (6 mm
2
).
The following table describes the polarity of the RC4500’s motor drive output signals.
Axis Motor Polarity
Elevation TB2: EL MOTOR + has higher polarity when moving Elevation Up
Azimuth TB3: AZ MOTOR + has higher polarity when moving Azimuth CW
Polarization TB4: POL MOTOR + has higher polarity when moving Polarization CW
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