J5 - Motor Drive - RESEARCH CONCEPTS RC4000 User Manual

RC4000 ACU Boardset

2.1.2.1.5 J5 - Motor Drive

Designation
J5 " MOTOR/BRAKES"
The RC4000 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, dual speed operation, and dynamic braking. The drive train is also
protected with resettable fuses.
The following table describes the polarity of the RC4000's motor drive output signals.
Axis J5 Terminals
Azimuth 4,5
Elevation 7,8
Polarization 10,11
The azimuth and elevation brake signals provide 24 VDC to energize brakes if present. Each brake
signal has a 1 Amp resettable fuse inline and could be allocated for other functions (fairing drives, etc.)
Chapter 2
PCB Pin Count
13
Polarity
Azimuth CW – 4 has higher potential
Elevation UP – 7 has higher potential
Polarization CW – 10 has higher potential
17
Hardware
Connector
Drive Terminal Block
Type #
5