Research Concepts RC1000 - Manual (Page 6)

RC1000A Antenna Controller Chapter 4.0 Installation 4
4.0 INSTALLATION
1.
Use (4) #10-32 panel mounting screws to fasten unit into a standard 19" rack.
2.
Refer to Figures 4.1 (page 6) and 4.2A and B (page 7 & 8) for detailed interconnect
legends.
a. Motor Drive Controls (3 wires)
This cable connects J1 of the RC1000A and the motor mounted at the antenna. It must
be capable of carrying the required motor current the desired distance without a
significant drop in voltage. Since this cable carries 36VDC, it is very important to protect
it in conduit at all times to minimize the potential hazard for electric shock.
b. Polarotor (Skew Control) (3 wires)
This cable connects J1 of the RC1000A to the polarotor mounted at the antenna feed. A
three-conductor shielded cable is necessary for this application. To minimize noise
pickup and ground loop problems, be sure to ground the shield or drain wire at terminal 8
of J1 ONLY. Failure to do so may result in poor polarotor operation, or even possible
damage to the polarotor circuits.
c. Sensor (Reed - 2 wires, Hall Effect - 3 wires)
This cable connects J1 of the RC1000A to the position sensor located at the antenna.
Shielded cable is necessary, and the shield or drain should be grounded at pin 2 of J1
ONLY. Again, the purpose is to minimize noise pickup and eliminate ground loop
problems. Failure to do so could result in antenna tracking errors or even damage to the
microcontroller itself. Refer to Figures 4.2A and 4.2B for connections.
d. Auto-Pol (2 wires)
This cable connects J1 to the receiver H/V toggle output. Connect the signal line to pin
12, J1, and the ground or return signal line to pin 8, J1.
Note : It is critical that as the antenna moves from West to East the position count shown on the
display MUST decrease - if it does not, pins 9 and 11 (motor drive) on J1 must be
reversed - recheck Figure 4.2 and correct.