1 BEFORE USE
1-4
(4) Output
module
Furnish the output module load power supply with a fuse for the protection of load short-circuits.
Ensure that the employed fuse is rated to match the load. If the employed fuse rating is higher
than specified, the printed circuit boards, case, and other items may burnout when the load is
shorted.
Fuse
Load
Power
supply
S10mini
(output module)
(5) Grounding
point
Provide Class D* or better independent grounding. Do not use any other existing ground as a
substitute. It is particularly important that the grounding point for the Programmable Controller
be at least 15 m away from an AC panel grounding point.
It is the best that the grounding wire be welded to the steel frame of a building. In case when
the aforesaid is impossible, bury the grounding rod in earth.
* 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.
AC panel
PCs panel
LG ground
Keep at least 15 meters between
grounding point of the PCs panel
and the AC panel.
Steel
frames
FG ground
Summary of Contents for S10mini LQS070
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