GE 90-30 PLC Series Installation And Hardware Manual page 69

9.
10. On the last I/O Bus Expansion Connector, plug in an I/O Bus Expansion Terminator, Catalog
11. Install the modules in their correct slots using your system layout drawings. (The label on the
12. Connect cables to Option modules. Route cables away from noise-producing wires. See the
13. Be sure to follow the information in the "Wiring Guidelines" section of this chapter to protect
14. Connect the signal (switches, sensors, solenoids, etc.) wires to the terminal boards, or terminal
15. When finished wiring the I/O terminal boards (if used and if you removed them for ease of
GFK-0356Q Chapter 2 Installation
the baseplate. Please refer to the "Baseplates" chapter for details on setting these DIP
switches. Rack numbers should be assigned by the system programmer because they
correspond to system configuration settings and program memory addressing.
If you have more than one baseplate (rack), connect the I/O Bus Expansion Cables between
the I/O Bus Expansion Connectors, which are located on the right end of the baseplates. The
cables are connected in a "daisy-chain" arrangement from one baseplate to the other. This is
made possible by the fact that the cables have a dual connector on one end. Therefore, when
the cable is plugged into a baseplate connector, the second connector on that end of the cable
provides a socket for connecting to the next cable. The data sheet for the I/O Bus Expansion
cables (IC693CBL300 etc.) in the "Cables" chapter has sample wiring figures.
Number IC693ACC307 (unless using a cable with built-in terminator resistors, which would
either be GE cable IC693CBL302, or your own custom-built cable).
side of each module identifies the module type and catalog number.) Refer to the section
"Installing Modules" if you are not familiar with how to do this.
"Wire Routing" section of this chapter.
the system from electrical noise. Install the power wires to the Power Supply and I/O
modules:
I/O modules with removable terminal boards. You can wire the terminal boards in-
place on the modules or remove them from the modules before wiring. Although
removing them may help make wiring easier (a previous section "Working with
Removable Terminal Boards" shows how to remove a terminal board), care should be
taken to avoid mixing them (each terminal board has the catalog number of the module
printed on it, and the hinged cover has a wiring diagram for that module type). If you are
using wire duct, routing each module's wires through the opening in the duct directly
under the module will help to keep each terminal board in its correct position.
I/O Modules with terminal blocks. Some modules use terminal blocks that mount to the
enclosure panel. This includes all 32-point modules and, can include other I/O modules if
they are fitted with the optional Terminal Block Quick Connect Assembly. Connect the
terminal blocks to the connectors on the modules with the provided cables.
blocks/strips. If wiring to terminal boards, these can be removed for ease of wiring, if desired.
See the section "Removing a Module's Terminal Board."
wiring), re-install them on the modules, being careful to match each one with the correct
module.
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