Grounding; Caution For Grounding; Grounding Electrode - Toshiba V Series User Manual

2.8 Grounding

2.8.1

Caution for grounding

• Single grounding
This unit should be grounded singly. Mixed grounding with other devices may cause
malfunction.
• Insulation from building
Insulate the cabinet from the building to prevent the noise current flowing in the building
from adversely affecting it.
• Circuit grounding and cabinet grounding
Separate the N line (0 V) of the I/O system power supply from the frame grounding wire.
Connect the frame grounding wiring to the grounding terminal at one point.
• External signal cable
Connect the shielding wire of a multi-core cable to the shield processing terminal at the
cabinet inlet. Wiring inside the cabinet should be free of shielding wire, if possible, to
save space and to ensure a sufficient cable bending radius.
2.8.2

Grounding electrode

Prepare a grounding electrode exclusive to this system. Ground resistance must be
100Ω or less (equivalent to Class D grounding).
6F8C1005
2.8 Grounding
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