Rockwell Automation 1440-SDM02-01RA XM-124 Standard Dynamic Measurement Module - Manuel (Page 23)

Rockwell Automation Publication 1440-UM001C-EN-P - May 2014 23
Install the XM-124 Standard Dynamic Measurement Module Chapter 1
DeviceNet Grounding
The XM-124 and XM-940 are able to use an external DeviceNet power supply. If
DeviceNet V- is not grounded elsewhere, connect DeviceNet V- to earth ground
at one of the XM modules, as shown in
Figure 7 .
Figure 7 - Grounded DeviceNet V- at XM Module
Figure 8 - Grounded DeviceNet V- at DeviceNet Power Supply
For more information on the DeviceNet installation, refer to the ODVA
Planning and Installation Manual - DeviceNet Cable System, which is available
on the ODVA website (
http://www.odva.org ).
Mount the Terminal Base
Unit The XM family includes several different terminal base units to serve all of the
XM modules. The 1440-TB-A/C terminal base is the only terminal base used
with the XM-124 standard dynamic measurement module (catalog number
1440-SDM02-01RA).
The terminal base can be DIN rail or wall/panel mounted.
To
Ground
Bus
DNet
Power
Supply
DNet Power V+
DNet Power V-
V- V+
WARNING: If you insert or remove the module while backplane power is on, an
electrical arc can occur. This could cause an explosion in hazardous location
installations.
Be sure that power is removed or the area is nonhazardous before proceeding.