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Figure 2: Mounting positions
Mounting features and dimensions
See the following figure for mounting dimensions listed
in millimeters and inches. Inches are listed in parenthesis.
The following figure also illustrates the DIN rail channel
and the mounting clips in an extended position.
Figure 3: Back of expansion module
DIN rail mount applications
Mounting the expansion module horizontally on 35 mm
(1.4 in.) DIN rail is the preferred method.
To mount an expansion module on a 35 mm DIN rail,
complete the following steps:
1.
Securely mount a 20 cm (8 in.) or longer section of 35
mm (1.4 in.) DIN rail, horizontally and centered in the
desired space, so that the expansion module mounts
in the position shown in Figure 2.
2.
Pull the two bottom mounting clips outward from
the expansion module to the extended position
(Figure 3).
3.
Hang the expansion module on the DIN rail by the
hooks at the top of the (DIN rail) channel on the back
of the expansion module (Figure 3), and position the
expansion module snugly against the DIN rail.
4.
Push the bottom mounting clips inward (up) to
secure the expansion module on the DIN rail.
To remove the expansion module from the DIN rail, pull
the bottom mounting clips out to the extended position
and carefully lift the expansion module off the DIN rail.
Wall mount applications
To mount an expansion module directly on a wall or other
flat vertical surface, complete the following steps:
1.
Pull the two bottom mounting clips outward and
ensure they are locked in the extended position as
shown in Figure 3.
2.
Mark the mounting hole locations on the wall using
the dimensions in Figure 3 and one of the mount
positions shown in Figure 2. You can also hold the
expansion module up to the wall or surface in a
proper mount position and mark the hole locations
through the mounting clips.
3.
Drill holes in the wall or surface at the marked
locations, and insert appropriate wall anchors in the
holes (if necessary).
4.
Hold the expansion module in place, and insert the
screws through the mounting clips and into the
holes (or anchors). Carefully tighten all of the screws.
Important: Do not overtighten the mounting
screws. Overtightening the screws may damage the
mounting clips.
Wiring
Risk of Electric Shock:
Disconnect or isolate all power supplies before mak-
ing electrical connections. More than one disconnec-
tion or isolation may be required to completely de-en-
ergize equipment. Contact with components carrying
hazardous voltage can cause electric shock and may
result in severe personal injury or death.
IOM3723 Input/Output Module Installation Guide
Warning
3
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