Toshiba NV Series Hardware Manual page 99

Chapter 3 Installation and Wiring
(2) Ground wiring between bases
80
6F8C1497
Class D ground dedicated for control device
Class D ground dedicated for control device
Figure 3-4 Ground wiring between bases
• Connect the power supply module's FG terminal to the base mounting screw, then
wire with a wire of 2mm
distance.
• The grounding shall be dedicated for the control device and separated from the
high-current circuit ground wires and shall be Class D.
Controller unit
Power
supply
Basic unit
FG
FG FG
I/O unit I/O unit I/O unit
Ground bar in the panel
Controller unit
Power
supply
Basic unit
FG
Power
supply
Expansion unit
FG
Power
supply
Expansion unit
FG
Ground bar in the panel
2
or larger to the ground bar in the panel in the shortest
FG