Electrical installation 51Connecting the power cables Connection diagramU2 V2 W2INPUT1)DriveOUTPUTU1/ L V1/N W1Motor3 ~V1U1 W1PEPEL1/L L2/N L31) Ground the other end of the PE conductor at the distribution board.2) Use a separate grounding cable if the conductivity of the cable shield is insufficient (smallerthan the conductivity of the phase conductor) and there is no symmetrically constructedgrounding conductor in the cable. See section Selecting the power cables on page 41.3) For more information on Common DC, see ACS355 Common DC application guide(3AUA0000070130 [EN]).4) In one-phase installations, connect the neutral cable here.Note:Do not use an asymmetrically constructed motor cable.If there is a symmetrically constructed grounding conductor in the motor cable in addition tothe conductive shield, connect the grounding conductor to the grounding terminal at the driveand motor ends.Route the motor cable, input power cable and control cables separately. For moreinformation, see section Routing the cables on page 45.Grounding of the motor cable shield at the motor endFor minimum radio frequency interference:• ground the cable by twisting the shield as follows:flattened width > 1/5 · length• or ground the cable shield 360 degrees at the lead-through of the motor terminal box. a bb > 1/5 · a2)BRK+ BRK-Optional brakeresistor orCommon DC 3)For alternatives,see sectionSelecting thesupplydisconnectingdevice(disconnectingmeans) on page40.4)
