EMC-compliant installation
- Shield all cables except for the power
supply cable. For the motor cable, you can use the HD.. option (output
choke) instead of the shielding to meet the interference emission
limit values.
- When using shielded motor cables, e.g. prefabricated motor
cables from SEW-EURODRIVE, you must keep the unshielded
conductors between the shield and connection terminal of the inverter
as short as possible.
- Connect the shield by the shortest possible route and make
sure it is grounded over a wide area at both ends. If using double-shielded
cables, ground the outer shield on the inverter end and the inner
shield at the other end.
- You can also use grounded sheet-metal
ducts or metal pipes to shield the cables. Install the power and
control cables separately.
- Provide high frequency compatible grounding for the inverter
and all additional units (wide area metal-on-metal contact between
the unit housing and ground, e.g. unpainted control cabinet
mounting panel).
