ABB OmniCore E10 Product Manual

• Most data network and field bus types have defined grounding topologies.If such grounding schemes exist, they should be followed.• In complex interference environments, two-layer shielding may be required.The inner shield should be grounded at the controller side only end and theouter shield should be grounded at both ends. The optimum shielding is acombination of foil and braid screens.• The best connection is one in which the shielding is extended up to andmakes a solid 360° connection (shown below) with the ground plane orchassis.Shielding exampleThe below example shows the shielding of a d-type connector:xx1700001320A A dimpled connector body makes multiple bonds to the mating connectorbody all around its periphery, 360° bonding.B Metal, or metallized, back shell makes 360° bond to the connector body.C The cable shield is exposed and 360° clamped to the back shell. A tight fitis a must.Many other 360° bonding methods and types of 360° shielded connectors are alsoacceptable.Shield pigtail terminationShield pigtail termination, as shown below, shall be avoided. If a pigtail connectioncannot be avoided, make it as short as possible.xx1700001321Continues on next page68 Product manual - OmniCore E103HAC079399-001 Revision: C© Copyright 2019-2022 ABB. All rights reserved.3 Installation and commissioning3.5.2 Connecting cables to the controllerContinued