Example with electronics cover size 2
The following figure shows the connection of the equipotential bonding and the PE conductor:
[1] | The mechanical installation of a drive unit with hollow shaft does not create a conductive connection of drive unit and mounting plate (e.g. in case of designs with gear unit). In this case, a low-impedance, Hf-capable equipotential bonding [4] is required. The mechanical installation of a drive unit without hollow shaft creates a conductive connection of drive unit and mounting plate. In this case, the entire contact surface must be conductive (e.g. unpainted). |
[2] | PE conductor in the supply system cable |
[3] | 2. PE conductor via separate terminals |
[4] | EMC-compliant equipotential bonding, for example using a ground strap (HF litz wire) The contact surfaces must be conductive (free of paint). For improved low-impedance grounding at high frequencies, SEW‑EURODRIVE recommends using corrosion-resistant connecting elements. The HF grounding option can be combined with LF grounding at the terminal box. |
- Do not use the cable shields of signal cables for equipotential bonding.
INFORMATION
