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Electrochemical corrosion of grounding terminals
Ensure that grounding terminals are protected against corrosion i.e. as could be caused
by condensation.
WARNING
The drive must be connected to the system ground of the AC supply. The ground wiring must conform
to local regulations and codes of practice.
The ground loop impedance must conform to the requirements of local safety regulations.
The drive must be grounded by a connection capable of carrying the prospective fault
current until the protective device (fuse, etc.) disconnects the AC supply.
The ground connections must be inspected and tested at appropriate intervals.
WARNING
Protective ground cable ratings
Input phase conductor size
≤ 10 mm²
> 10 mm² and ≤ 16 mm²
> 16 mm² and ≤ 35 mm²
> 35 mm²
18
Minimum ground conductor size
Either 10 mm² or two conductors of the same cross-sectional area as the
input phase conductor
The same cross-sectional area as the input phase conductor
16 mm²
Half of the cross-sectional area of the input phase conductor
Commander C300 PM Step By Step Guide Size 5-9
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