1. System Installation Requirements
1-19
TI 32P01J10-01EN
Grounding Circuit
Grounding examples are given below.
If ProSafe-RS systems are housed in a cabinet, the cabinet must be grounded according to the
grounding network topology of the building or plant for installation.
In order to connect a cabinet with a protective grounding system, the grounding topology shown
in the figures “Grounding connected to a single grounding bus inlet” or “Grounding connected to
each grounding bus inlet” can be used.
When providing lightning arresters on power and signal lines, those arresters need to be
grounded to the same bus. For details, see Section 1.5, “Noise Countermeasures.”
F010401.ai
Cabinet
Cabinet
Cabinet
Cabinet
Protective grounding system
Grounding bus inlet
G
G
G
G
In same
control room
G: Grounding Bar
Figure Grounding connected to a single grounding bus inlet
F010402.ai
Cabinet
Cabinet
Cabinet
Cabinet
Protective grounding
system
Protective grounding
system
Protective grounding
system
G: Grounding Bar
Protective grounding system
Grounding bus inlet
G
G
G
G
In same
control room
Protective grounding
system
Figure Grounding connected to each grounding bus inlet
Mar. 15, 2018-00