Electrical installation5411. With frame size C or D, cut suitable slots on the edges of the connector coversto accommodate the supply and motor cables. Refit the covers. (Tighten thescrews to 3 N·m [25 lbf·in]).12. Secure the cables outside the unit mechanically.13. Ground the other end of the supply cable shield or PE conductor(s) at thedistribution board. In case a mains choke and/or an EMC filter is installed, makesure the PE conductor is continuous from the distribution board to the drive.Grounding the motor cable shield at the motor endFor minimum radio frequency interference, ground the cable shield 360 degrees atthe lead-through of the motor terminal boxor ground the cable by twisting the shield so that the flattened shield is wider than1/5 of its length.360 degrees groundingConductive gasketsa bb > 1/5 · a