Installing and wiring modules – Rockwell Automation 2755-DM9, -DM9E High Speed Decoder User Manual

Page 80

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Chapter 5
Installing the Decoder

5–6

Step 4 - Connect the terminal that will be used for programming to the port
labeled AUX or AUXILIARY on the decoder. Since the programming may
have been done earlier, this step is optional.

Note: It is possible to program the decoder from a host device. However, it
is preferable to use a programming terminal as described in Chapter 4.

Step 5 - The initial programming should be done at this time, if it was not
done earlier (at a simulation).

Step 6 - If a host device will be used, connect it to the port labeled HOST on
the back of the decoder. Refer to Chapter 6 and Figures 2.3 and 3.3.

Step 7 - If input or output devices are used, perform the following:

Verify that fuses are installed. Refer to section titled Module Fuse
Replacement (Chapter 9).

Install additional modules, if needed. Refer to section titled Installing and
Wiring Modules.

Connect wiring to the module connectors (located under access cover).
Refer to Installing and Wiring Modules.

Step 8 -

Make sure the power switch on the decoder is in an off

position, plug cord into the decoder, and connect the power cord to a power
source.

Note: The 2755-DM9E is supplied with an unterminated cable. Attach a
suitable connector using the diagram below.

Blue

Brown

Green/Yellow

Earth Ground

Line (L1)

Neutral (L2)

Remove and install modules as follows:

1) Disconnect the power from the output modules and the decoder.

2) Remove the two hex head screws (5/64 inch) which secure the module
access cover and remove cover.

3) There are eight positions for the modules. Locations #1 through #8 accept
any combination of output modules. Location #8 may also be configured to
accept an input module for the Auto Load function. Refer to Figure 5.4. The
first two modules are installed at the factory.

Installing and Wiring Modules

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