Rockwell Automation 2755-NB40, 2755-NB41 User Manual

Instructions

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AdaptaScan Wiring Bases
Catalog Number 2755-NB40, -NB41

AdaptaScan Wiring Bases
Catalog No. 2755-NB40, -NB41

Description

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The wiring base contains all of the wiring connections for the AdaptaScan
Reader along with sockets for two I/O modules. Two versions of the
AdapataScan wiring base are available, a metric (Catalog No. 2755-NB41)
and U.S. version (Catalog No. 2755-NB40). Both versions of the wiring
base are identical except for the conduit openings and bottom mount thread
sizes.

Note: The three screws provided with the Catalog No. 2755-NB40 or

-NB41 wiring base are used with the mounting bracket kit (Catalog No.
2755-NM42).

Before mounting the wiring base, determine the proper orientation and
position as described in the AdaptaScan Reader user manual.

• Leave adequate clearances for wiring.

• Cover unused openings with conduit plugs (3 plugs provided with wiring

base). The wiring base has four conduit openings. Use Conduit fittings
with rubber grommets on cables that enter the wiring base. Two different
sized grommets (for conduit fittings) are provided with each Reader.

• Route wires carefully to reduce or minimize electrical noise. When

communication and power wiring must cross, make their intersection
perpendicular.

• Use proper grounding to limit the effects of noise due to Electromagnetic

Interference (EMI). To avoid problems caused by EMI, all cables must
be shielded and grounded at one end. Grounding is also an important
safety measure in electrical installations.

Connect to
Earth Ground

Wiring Base

Instructions

ounting Dimensions
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AdaptaScan Wiring Bases
Catalog Number 2755-NB40, -NB41

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and Clearances

1.67 Inches
(42 mm)

5.36 Inches
(137 mm)

Wirng Base

Front View

The following shows the dimensions clearances for the wiring base and the
Reader/wiring base assembly.

3.87 Inches
(98 mm)

1.67 Inches
(42 mm)

5.36 Inches
(137 mm)

Wiring Base

Bottom View

Wiring Base

End View

3.87 Inches
(98 mm)

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Leave 1 inch (25.4 mm) Clearance for

Reader installation and viewing of LED indicators.

Front View

g Base

There are 2 options for mounting the wiring base (Catalog No. 2755-NB40
or -NB41):

• Top Mounting

Mount the base using mounting screws through the top mounting holes.

• Bottom Mounting

Mount the base using screws through the mounting surface into threaded
holes on the bottom of the wiring base.

5.82 Inches
(143 mm)

Midpoint of Scan Line

Variable

Side View