3 Installation3.4.3 Other Precautions3-183.4.3 Other Precautions Attachment Methods of Ferrite Cores Recommended Ferrite Core Fixing the CableFix and ground the cable shield using a piece of conductive metal.• Example of Cable Clamp Shield BoxA shielded box, which is a closed metallic enclosure, is effective as reinforced shield-ing against electromagnetic interference (EMI) from the multi-winding drive unit,SERVOPACKs, and converters. The structure of the box should allow the main body,door, and cooling unit to be attached to the ground. The box opening should be assmall as possible.Note: Do not connect a digital operator to the multi-winding drive unit while the multi-windingdrive unit is operating. Connect them only when the machinery is stopped during mainte-nance.One turn Two turnsCable Name Ferrite Core Model ManufacturerPower supply main circuit cableF11080GB Hitachi Metals, Ltd.Servomotor main circuit cable(SERVOPACK end)Encoder cableESD-SR-250 NEC TOKIN CorporationMotor fan cableMECHATROLINK-II communica-tions cableCableFerrite coreCableFerrite coreHost controller sideGround plateCableCableclampShield (cable sheath stripped)Fix and ground the cable shieldusing a piece of conductive metal.Remove paint on mounting surface.