Shielding Connection Kit

Introduction

The BMXXSP•••• shielding connection kit allows to connect the cable shielding directly to the ground and not to the module shielding to help protect the system from electromagnetic perturbations.

Connect the shielding on the cordsets for connecting:

Analog module,
Counter module,
Encoder interface module,
Motion control module,
An XBT console to the processor (via shielded USB cable).

Kit References

Each shielding connection kit includes the following components:

A metal bar
Two sub-bases

The shielding connection kit reference is dependent on the size of the Modicon X80 rack::

X bus racks/Dual Ethernet and X bus racks	Number of slots	Shielding Connection Kit
BMXXBP0400(H)	4	BMXXSP0400
BMEXBP0400(H)	4	BMXXSP0400
BMXXBP0600(H)	6	BMXXSP0600
BMXXBP0800(H)	8	BMXXSP0800
BMEXBP0800(H)	8	BMXXSP0800
BMXXBP1200(H)	12	BMXXSP1200
BMEXBP1200(H)	12	BMXXSP1200

Redundant power supply racks	Number of slots	Shielding Connection Kit
BMEXBP0602(H)	6	BMXXSP0800
BMEXBP1002(H)	10	BMXXSP1200

Clamping Rings

Use clamping rings to connect the shielding on cordsets to the metal bar of the kit.

NOTE: The clamping rings are not included in the shielding connection kit.

Depending on the cable diameter, the clamping rings are available under the following references:

STBXSP3010: small rings for cables with cross-section 1.5...6 mm2 (AWG16...10).
STBXSP3020: large rings for cables with cross-section 5...11 mm2 (AWG10...7).

Kit Installation

Installation of the shielding connection kit to the rack can be done with module already installed on the rack except for the BMXXBE0100 rack extender module.

Fasten the sub-bases of the kit at each end of the rack to provide a connection between the cable and the ground screw of the rack:

rack

sub-base

metallic bar

clamping ring

Tightening torques to install the shielding connection kit:

For the screws fixing the sub-base to the Modicon X80 rack: Max. 0.5 N•m (0.37 lbf-ft)
For the screws fixing the metallic bar to the sub-bases: Max. 0.75 N•m (0.55 lbf-ft)

NOTE: A shielding connection kit does not modify the volume required when installing and uninstalling modules.

Kit Dimensions

The following figure gives the dimensions (height and depth) of a Modicon X80 rack with its shielding connection kit:

NOTE: The overall width equals to the width of the Modicon X80 rack.