Hitachi S10mini User Manual page 52

* 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
Do not touch the 10BASE5 connector during power-on. Otherwise, the
system may malfunction due to static electricity, etc.
4 FL.NET MODULE WIRING PROCEDURES
REQUIREMENT
2
or more.
4-7