Rockwell Automation 1440-REX00-04RD XM-441 Expansion Relay Module - Manual (Page 17)

Rockwell Automation Publication GMSI10-UM019C-EN-P - June 2011
Installing the XM-441 Expansion Relay Module 17
The terminal base can be DIN rail or wall/panel mounted. Refer to the
specific method of mounting below.
DIN Rail Mounting
Use the following steps to mount the XM-943 terminal base unit on a DIN rail
(A-B pt no. 199-DR1 or 199-DR4).
1. Position the terminal base on the 35 x 7.5mm DIN rail (A).
2. Make certain the side connector (B) if fully retracted into the base unit.
ATTENTION
The XM modules make a chassis ground connection
through the DIN rail. Use zinc plated, yellow chromated
steel DIN rail to assure proper grounding. Using other
DIN rail materials (e.g. aluminum, plastic, etc.), which can
corrode, oxidize or are poor conductors can result in
improper or intermittent platform grounding.
You can also mount the terminal base to a grounded
mounting plate. Refer to Panel/Wall Mount Grounding on
page 15.
IMPORTANT
The XM-943 terminal base unit is mounted to the right of
the XM module to which it is providing additional relays.
Position terminal base at a slight angle and hook over the top of the DIN rail.