Rockwell Automation 1769-SM1 Compact I/O to DPI/SCANport Module - Manual (Page 27)

Installing the Module 2-7
DIN Rail Mounting
The 1769-SM1 module can be mounted using the following DIN rails:
• 35 x 7.5 mm (EN 50 022 - 35 x 7.5)
• 35 x 15 mm (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.
The 1769-SM1 module can be replaced while the system is mounted to a
panel (or DIN rail).
1. Remove power.
2. Unplug the 1202-C* communications cable from each port (CH1,
CH2, CH3) on the 1769-SM1 module. Note each drive and the port
to which it is connected.
3. Remove the upper and lower mounting screws from the module (or
open the DIN latches using a flat-blade screwdriver).
4. On the right-side adjacent module, move its bus lever to the right
(unlock) to disconnect it from the module being removed.
Replacing the Module within a System
!
ATTENTION: Risk of equipment damage exists. Remove power
before installing or removing the 1769-SM1 module. When you install
or remove the module with power applied, an electrical arc may occur.
An electrical arc can cause personal injury or equipment damage by:
• Sending an erroneous signal to your system’s field devices, causing
unintended machine motion.
• Causing an explosion in a hazardous environment.
Electrical arcing causes excessive wear to contacts on both the module
and its mating connector. Worn contacts may create electrical
resistance.