Risco ProSYS Plus - Typical Wired Expansion Modules Installed on RISCO Bus Lines

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2017 Page 37 5IN2413 B
Typical Wired Expansion Modules Installed on RISCO Bus Lines
The following shows different types of wired expansion modules typically
installed on a RISCO bus line (all are bus devices). Note that wireless expanders
can also be wired to a RISCO bus line.
NOTES:
• The parallel wiring system supports parallel connections from any point along
the wiring.
• For maximum system stability, it is best not to exceed a wire run of 300 meters
(1000 feet) for each leg of a bus line. For a distance of more than 300 meters,
contact RISCO Customer Support.
• In case of bus communication problems, connect two of the supplied 2.2K Ω
resistors, with one at each end of the bus data terminals (connecting the green
to the yellow terminals).
• For long cable runs, please use the correct cable / gauge sizes as stated in the
Appendix B: Wiring, page 219.
• If connecting remote power supply units, do not connect the red wire (+12 V)
between the power supply unit and the ProSYS Plus main panel. Break the
+12V at the input to each power supply expansion module (keep 0V common).
• If additional current is required on a bus line, install power supply expansion
module(s).