Auxiliary i/o connection – Research Concepts RC2500 User Manual
Page 23
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RC2500 Antenna Controller
Chapter 3
Installation/Setup
Research Concepts, Inc. • 5420 Martindale Road • Shawnee, Kansas • 66218-9680 • USA
www.researchconcepts.com
Auxiliary I/O Connection
J6, located directly above J7, is the Auxiliary I/O connector. This port, based on a DB-25 receptacle,
supports isolated, axis-specific limit inputs as well as contact closures for summary faults and peripheral
equipment control. A +5 VDC regulated output (200mA max), a +24 VDC unregulated output (1 Amp
max), and an analog voltage input, all referenced to the RC2500 ground, are also available The individual
pin definitions are shown in the table below. Both J6 and J7 are required when operating with a Vertex
7134 A.I.U. that support separate limits.
Pin #
Description
1
Summary Fault dry contact COM, (3A @ 125VAC or 3A @ 30VDC).
2
Summary Fault dry contact NO, (3A @ 125VAC or 3A @ 30VDC).
3
Azimuth CW Limit return.
4
Azimuth CCW Limit return(same as Summary Limit-AZ/EL Drive Fault return,J7-17&-18)
5
Elevation Down Limit return.
6
Elevation Up Limit return
7
Polarization CW Limit return.
8
Polarization CCW Limit return.
9
Drive Common (return path, same as J7, pins 2,5,8)
10
PC0 output dry contact NC, (3A @ 125VAC or 3A @ 30VDC).
11
P0.2 Auxiliary analog/digital input 0 - +5 VDC.
12
Ground (for digital/analog I/O).
13
Ground for system bus voltages.
14
Summary Fault dry contact NC, (3A @ 125VAC or 3A @ 30VDC).
15
Azimuth CW Limit input, 24 VDC low current. (0V = CW Limit reached)
16
Azimuth CCW Limit input, 24VDC (0V = CCW Limit reached) (same as J7-10 ).
17
Elevation Down Limit input, 24 VDC low current. (0V = Down Limit reached)
18
Elevation UP Limit input, 24 VDC low current. (0V = Up Limit reached)
19
Polarization CW Limit input, 24 VDC low current. (0V = CW Limit reached)
20
Polarization CCW Limit input, 24 VDC low current. (0V = CCW Limit reached)
21
PC1 Relay Driver, 700mA max sink. (0.4V = Relay On)
22
PC0 output dry contact COM, (3A @ 125VAC or 3A @ 30VDC).
23
PC0 output dry contact NC, (3A @ 125VAC or 3A @ 30VDC).
24
+5 Volts DC digital power, 200mA max.
25
Unregulated +24 VDC bus voltage, 1 Amp max..
Once the above connections have been made, verify that antenna motion in the appropriate direction can
be affected from the front panel in MANUAL mode.