Grounding - Panasonic FP7 Series User Manual

4.2.5 Grounding

• Ground the instrument to ensure sufficient noise suppression.
• The point of grounding should be as close to the PLC as possible. The ground wire should
be as short as possible.
• Sharing the ground with another device may have an adverse effect. Therefore, be sure that
grounding is dedicated.
• Earth terminals for an AC power supply unit should be grounded at a grounding resistance of
100 Ω or less.
• When 24V DC is directly supplied to the CPU unit, ground the attached functional earth
(Green).
4.2 Wiring the Power Supply
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