Grounding; Grounding The Niu And Power Modules; Required Additional Grounding - GE VersaPoint IC220PBI002 User Manual

Grounding

All devices in a VersaPoint station must be grounded so that possible signal
interference is shielded and discharged to ground. A wire of at least 1.5mm
AWG) must be used for grounding.

Grounding the NIU and Power Modules

The NIU, power terminals, and segment terminals have an FE spring (metal clip)
on the bottom of the electronics base. These springs create an electric connection
to the DIN rail. VersaPoint I/O modules are automatically grounded via the FE
voltage jumper when they are connected to other modules. The FE voltage jumper
(functional earth ground) runs from the NIU through the entire VersaPoint station.
The function of FE is to discharge interference. It does not provide shock
protection.

Required Additional Grounding

To ensure a reliable ground connection even if the DIN rail is dirty or the metal clip
damaged, GE Intelligent Platforms recommends grounding the NIU to a DIN
rail-mounted grounding terminal block, via the FE terminal point.
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