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4 FL.NET MODULE WIRING PROCEDURES
4.4 Ground Wiring
The FL.NET module requires no ground wiring.
* Class D grounding is defined in the Technical Standard for Electrical Facilities of Japan. This
standard states that the grounding resistance must be 100 ohms or less for equipment operating
on 300 VAC or less, and 500 ohms or less for devices that shut down automatically within 0.5
seconds when shorting occurs in low tension lines.
Ground the FG (frame ground) terminal as follows: Connect the FG terminal on
each module provided with external terminals to the grounding terminal on the
mount base. Perform Class D grounding for the grounding terminal on the
mount base.
Use ground lines whose size is 2 mm
Figure 4-6 Unit Ground Wiring
NOTICE
2
or more.
4-6
2
2 mm
or more
Class D grounding (*)
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