Chapter 4 Installing and Wiring
4-5
4_
4.5.1
Ground
The diameter of the ground should not be less than the diameters of the cables connected to the
terminals L and N.
If using multiple pieces of equipment, use a single-point ground.
RTU-ECAT
Another piece
of equipment
The single-point ground is better.
If you cannot use a single-point ground, use a common-point ground.
RTU-ECAT
Another piece
of equipment
The common-point ground is permitted.
Do not connect equipment ground wires together as shown below.
R TU-EC AT
Another piece
of equipment
The e quipment can n ot be g roun ded in this way.
