Recommendation for improving the grounding (EMC), HF grounding

For improved, low-impedance grounding at high frequencies, the following connections are recommended. SEW-EURODRIVE recommends to use corrosion-resistant connection elements.

HF grounding is not installed as standard.

The option HF grounding can be combined with the PE connection in the connection box (NF grounding).

The option HF grounding is available as follows:

• Completely preassembled at the factory
• Or as a "grounding terminal" kit for customer installation; part numbers listed in the following table.

INFORMATION

All parts of the kit are made from stainless steel.

INFORMATION

For further information regarding the grounding, refer to the SEW publication "Drive Engineering – Practical Implementation, EMC in Drive Engineering."

INFORMATION

If you use 2 or more ground straps, they must be attached with a longer screw. The specified tightening torques refer to a strap thickness of t ≤ 3 mm.

• DR..71 – 80, DRN71 – 80, DR2..71 – 80 motors with HF(+LF) grounding
• DR..90, DRN90 motors with HF(+LF) grounding
• DR..100M, DRN100LS motors with HF(+LF) grounding
• DR..100L – 132, DRN100LM – 132S motors with HF(+LF) grounding