Research Concepts RC2500 User Manual
Page 122
RC2500 Antenna Controller
Appendix K
Driving 36VDC Motors 115
Research Concepts, Inc. • 5420 Martindale Road • Shawnee, Kansas 66218-9680 • USA
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Terminal
Signal Name
Description
on the J7 mating terminal.
14, 15
AZ DRIVE FAULT, EL
DRIVE FAULT
These inputs indicate the fault status of the azimuth and
elevation drives. When current flows into these inputs the
controller assumes that the drives are OK. The input current
associated with these inputs returns via the SUMMARY LIMIT
RETURN. In this design these inputs are connected to the
Alarm Status outputs of the azimuth and elevation drives.
16
ESTOP RETURN
This is the return associated with the emergency stop input. In
this design this pin is tied to one of the SUMMARY LIMIT
RETURN terminals (which is at ground potential) via bus wire
on the J7 mating connector.
17, 18
SUMMARY LIMIT
RETURN
The return associated with the SUMMARY LIMIT input. Tied to
ground in this design. Note that this signal is also present on
the Auxiliary I/O connector (J6).
19
ESTOP
Emergency stop switch input. When current flows into this
terminal the controller assumes that the AIU Emergency Stop is
not active. If the controller senses that the Emergency Stop is
active the controller disables antenna control and displays the
‘Emergency Stop’ message. Not used in this design. This
terminal is tied to 24 VDC.
20
Not Connected
In this design this terminal is tied to pin 19 via bus wire on the
J7 mating connector. Pin 19 is tied to 24 VDC. This terminal is
used to connect other circuits to 24 VDC.
21, 22
AZ FAST, EL FAST
Azimuth and elevation fast/slow current drivers – not used in
this design.
23
DRIVE ENABLE
This output is used to reset the azimuth and elevation drives.
The controller pulls this pin low to reset the drives. The return
associated with this current driver is DRIVE COMMON. On
this design this output is connected to the drive Reset In inputs.
24
MAINT
Maintenance input. When current flows in this circuit the
controller assumes that the AIU is able to accept drive
commands from the controller. If current is not flowing in this
circuit the controller disables antenna control and displays the
‘Maintenance’ alarm message. In this design this feature is not
used and this terminal is tied to 24 VDC.
25
MAINT RETURN
The return associated with the MAINT input.
The following table discusses the signals on the RC2500’s Auxiliary I/O connector (J6) …
Terminal
Signal Name
Description
4
AZ CCW LIMIT RETURN
This terminal is internally connected to the SUMMARY LIMIT
RETURN signal of the Antenna I/O connector (J7). In this
design this terminal is tied to ground to provide a ground return
for circuits whose terminals are on the J7 connector.
5, 6, 7, 8
EL DOWN LIMIT
RETURN, EL UP LIMIT
RETURN, POL CW LIMIT
RETURN, POL CCW
LIMIT RETURN
These pins are the return signals associated with various limit
inputs found on the J6 connector. The circuits are not
supported with the RC2500 Vertex 7134 AIU interface
software. In this design these terminals are tied with bus wire
to the AZ CCW LIMIT RETURN and the DRIVE COMMON
terminals only to facilitate connecting those two terminals
together.