Omron SYSMAC NYM12W-C1062 User Manual page 98

Industrial monitor
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5 Installation
To avoid equipotential currents on the cable shields, an additional equipotential bonding conductor
must be installed.
Refer to IEC 61918 for guidelines regarding conductor sizing and length to prevent a voltage offset
between two communicating devices exceeding 1 V.
Make sure to run the bonding conductor in close proximity to the communication cable.
The Monitor has a protection ground connection because the metal part of the Monitor outside of the
enclosure must be part of the protection grounding of that enclosure (for example a cabinet). There
are no power supply voltages used in the Monitor which require protection grounding.
5 - 18
NY-series Industrial Monitor User's Manual (W554)

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