ABB DSAI 130 5730048-CA Speed module

Potential equalization currents Large equalization currents between the protective ground systems of different devices may cause operational malfunctions due to signal interference and may even cause fires.  If necessary, a potential equalization conductor should be installed parallel to the cable. This should have a cross-section that is a multiple of the cable shield.

Operational malfunctions 

Use of unsuitable or improperly prepared cables, as well as incorrect wiring will mean that neither the values stated in the technical data nor the electromagnetic compatibility (EMC) can be ensured.  Only use cables prepared by specialists.  The cables used must be prepared according to the interface description in this document.  The wiring instructions for the relevant interface must be observed when wiring the device.  Any generally applicable regulations and standards must be fulfilled.

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