Chapter 2 Installation; Mounting Options; Installation Guidelines; Grounding For Direct Connection To 24Vdc - GE PACSystems RXi User Manual

Chapter 2 Installation

Mounting Options

2.1
Note:
■
Direct mounting onto a panel.
■
DIN rail mounting using the optional Backplate (ICRXIACCBPL).
■
Panel mounting using the optional Backplate.
Mounting methods are described in detail on pages 14 through ICRXICTL000, GFK-2816,
GFK281618.

Installation Guidelines

2.2
■
The RXi Controller must be mounted with its cooling fins vertical to ensure adequate
airflow.
■
The panel should be capable of supporting the weight of the controller without distortion
to the panel.
■
Adequate airflow around the exterior of the unit is essential to maintain safe interior
temperature of the unit. Inlets and outlets must not be obstructed. For details, refer to
page ICRXICTL000, GFK-2816, GFK281613.
■
You may need to allow more space for installation of cables and connectors than what is
required for heat dissipation. To avoid impacting mechanical reliability and signal quality,
cable installation must comply with the minimum bend radius specified by the cable
manufacturer.
2.2.1

Grounding for Direct Connection to 24Vdc

Note:
■
The panel that the controller or DIN rail is mounted to must have a safety ground
connection to protective earth. This ground wire must be at least 18 AWG (0.82mm
■
For all types of mounting (with or without Backplate), connect the power connector frame
ground to protective earth (ground). (Refer to Section 2.4.2 Connecting the RXi Controller
Directly to 24Vdc Input Power.
■
If you are using an Energy Pack, refer to the PACSystems RXi Energy Pack
ICRXIACCEPK01A Quick Start Guide, GFK-2835 for grounding information.
■
If the controller is mounted on the Backplate, also connect the ground wire to the 8mm
grounding stud on the Backplate and to protective earth, as shown in the following
example.
■
Connect the frame ground connection on the power plug to protective earth.
■
Terminate all ground wires at the same grounding point.
■
Make all ground wires as short as possible.
GFK-2816F
Before selecting a mounting method, refer to the thermal requirements in
Section 1.1.3 RXi Controller Environmental Specifications.
These grounding connections serve as a path for reducing electrical
interference and emissions and are required for the RXi Controller to comply
with the standards identified in Appendix D.
August 2015
Chapter 2. Installation
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