Examples
The following figure shows 2 examples on how protective earth and the signal
cable screens can be connected:
Control cabinet
External unit
Example 1
Example 2
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Example 1:
• Where a good earth connection is available on all units, the best shielding
is obtained by grounding all screens at both ends on all units.
Example 2:
• If the cable is terminated where a good earth connection is not available a
noise suppression capacitor can be used. The screens of the 2 cables must
be connected as shown in the figure, but not connected to the chassis of the
unit.
Continues on next page
Product manual - OmniCore V250XT Type B 77
3HAC087112-001 Revision: A
© Copyright 2023-2023 ABB. All rights reserved.
3 Installation and commissioning
3.5.2 Connecting cables to the controller
Continued
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