Rockwell Automation Publication 1756-IN062A-EN-P - August 2017 5
ControlLogix DC Digital I/O Modules
Installation Requirements
Before you install the module, you must complete the following steps.
1. Install a 1756 ControlLogix® chassis.
2. Install a 1756 ControlLogix power supply.
3. Installation instructions can be found in the ControlLogix
Digital I/O Modules User Manual,
publication 1756-UM058.
Install the Module
You can install or remove a module while chassis power is applied.
Slide the module into the slot in the chassis until the locking tabs click.
Key the Removable Terminal Block
Key the RTB to prevent inadvertently connecting the incorrect RTB to
your module.
1. Push the U-shaped band onto the module until the band snaps
into place.
2. Insert wedge-shaped tabs into positions on the RTB that
correspond to unkeyed module positions on the module until
they stop.
Connect Wiring
You can use an RTB or a Bulletin 1492 prewired interface module
(IFM) to connect wires to your module. If you are using an RTB, see
Recommendations for Wiring Your RTB
, to connect wires to the RTB.
IFMs are prewired before shipping.
WARNING: Special Conditions for Safe Use:
• This equipment is not resistant to sunlight or other sources of
UV radiation
• This equipment shall be mounted in an ATEX/IECEx Zone 2
certified enclosure with a minimum ingress protection rating
of at least IP54 (in accordance with EN/IEC 60079-15) and
used in an environment of not more than Pollution Degree 2
(as defined in EN/IEC 60664-1) when applied in Zone 2
environments. The enclosure must be accessible only by the
use of a tool.
• This equipment shall be used within its specified ratings
defined by Rockwell Automation.
• Secure any external connections that mate to this equipment
by using screws, sliding latches, threaded connectors, or other
means provided with this product.
• Do not disconnect equipment unless power has been removed
or the area is known to be nonhazardous.
• Provision shall be made to prevent the rated voltage from
being exceeded by transient disturbances of more than 140%
of the peak rated voltage when applied in Zone 2
environments.
• This equipment must be used only with ATEX/IECEx certified
Rockwell Automation backplanes.
• The instructions in the user manual shall be observed.
ATTENTION: The module is designed to support removal and
insertion under power (RIUP). However, when you remove or
insert a removable terminal block (RTB) with field-side power
applied, unintended machine motion or loss of process control
can occur. Exercise extreme caution when using this feature. It is
recommended that field-side power be removed before installing
the RTB onto the module.
SHOCK HAZARD: If the RTB is installed onto the module while
the field-side power is applied, the RTB is electrically live. Do not
touch the RTB’s terminals. Failure to observe this caution may
result in personal injury.
WARNING: If you connect or disconnect wiring while the
field-side power is on, an electric arc can occur. This could cause
an explosion in hazardous location installations. Be sure that
power is removed or the area is nonhazardous before proceeding.
ATTENTION: If multiple power sources are used, do not exceed
the specified isolation voltage.
U-shaped
Keying Band
Wedge-shaped
Keying Tab
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