YOKOGAWA CENTUM CS, Technical Information

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1. System Installation Requirements
1-18
TI 33J01J10-01EN
1.4 Grounding
To avoid electric shocks and minimize the influences of external noise, the installed
devices must be grounded to the protective grounding system which complies with the
safety standards, the electrical installations standard, and the power distribution system
of the country or the region.
In the CENTUM VP cabinets, grounding bars are provided.
As for the protective grounding systems, the meshed grounding systems described in
IEC 60364, IEC 62305 and IEC 61000-5-2 can be applied
A protective device is to be installed in compliance with the rules and regulations, in order
to prevent electric shocks caused by a ground fault.
A plug type power cable has to be connected to the receptacle connected to the protective
grounding system.
A functional grounding terminal of the equipment has to be connected to the grounding
bar for protective grounding in a cabinet in accordance with the instructions in this
document. A grounding bar for functional grounding connects to a grounding bar
for protective grounding in a cabinet. A functional grounding terminal is electrically
connected with a protective grounding system. In order to minimize the influence of noise
a grounding cable for other system’s cabinets must be connected individually to ground
bus inlet.
Oct. 5, 2018-00