Din rail mounting, Replacing a single module within a system, Din rail mounting on – Rockwell Automation 1769-IF4I CompactLogix Isolated Analog Input Module User Manual
Page 9: Replacing a single module within a
CompactLogix Isolated Analog Input Module 9
Publication 1769-IN074C-EN-P - March 2011
4.
Drill and tap the mounting holes for the recommended M4 or #8 screw.
5.
Place the modules back on the panel and check for proper hole alignment.
6.
Attach the modules to the panel using the mounting screws.
7.
Repeat steps
1
…
6
for any remaining modules.
DIN Rail Mounting
The module can be mounted using the following DIN rails:
35 x 7.5 mm (1.38 x 0.30 in.; EN 50 022 - 35 x 7.5)
35 x 15 mm (1.38 x 0.59 in.; EN 50 022 - 35 x 15)
Before mounting the module on a DIN rail, close the DIN rail latches. Press the DIN rail
mounting area of the module against the DIN rail. The latches will momentarily open and lock
into place.
Replacing a Single Module within a System
The module can be replaced while the system is mounted to a panel (or DIN rail). Follow these
steps.
1.
Remove power.
.
2.
On the module to be removed, remove the upper and lower mounting screws from the
module (or open the DIN latches by using a flat-blade or phillips-style screwdriver).
3.
Move the bus lever to the right to disconnect (unlock) the bus.
4.
On the right-side adjacent module, move its bus lever to the right (unlock) to disconnect
it from the module to be removed.
5.
Gently slide the disconnected module forward.
If you feel excessive resistance, check that the module has been disconnected from the
bus and that both mounting screws have been removed (or DIN latches opened).
6.
Before installing the replacement module, be sure that the bus lever on the module to be
installed and on the right-side adjacent module are in the unlocked (fully right) position.
TIP
If mounting more modules, mount only the last one of this group and put the others
aside. This reduces remounting time during drilling and tapping of the next group.
TIP
It may be necessary to rock the module slightly from front to back to remove it, or,
in a panel-mounted system, to loosen the screws of adjacent modules.