Allen-Bradley 1440-SDM02-01RA, Руководство пользователя, Страница: 24 / 168

24 Rockwell Automation Publication 1440-UM001D-EN-P - September 2016
Chapter 1 Install the XM-124 Standard Dynamic Measurement Module
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
Grounded DeviceNet V- at DeviceNet Power Supply
For more information on the
DeviceNet installation, see 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 the XM
modules. The 1440-TB-A/C terminal base is the only terminal base that is
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.
DeviceNet V-
To ground bus
WARNING: If you insert or remove the module while backplane power is on,
an electric arc can occur. This arc could cause an explosion in hazardous
location installations.
Be sure that power is removed or the area is nonhazardous before
proceeding.
ATTENTION: Do not remove or replace a Terminal Base unit while power is
applied. Interruption of the backplane can result in unintentional operation
or machine motion.
IMPORTANT Install the overlay slide label to protect serial connector and electronics when
the serial port is not in use.