Electrical cabling and connections vacon • 109Local contacts: http://drives.danfoss.com/danfoss-drives/local-contacts/6NOTE! Terminals X9 and X15 are connected by default. The cable can be removed if the signal isreceved from other source.6.3.2 Connections between power unit ASIC and the control unitThe communication connections between the VACON ® NX Liquid-Cooled drive power unit and thecontrol unit (see Chapter 6.2) can be established using either the conventional round cable(standard in chassis CH3, CH4 and CH5) or optical cable (all chassis). Note that for chassis CH61and greater, only optical cables can be used.6.3.2.1 Connections with round cable (Chassis CH3, CH4 and CH5)The communication connection between the drive power unit and the control unit in chassis CH3,CH4 and CH5 are primarily made with conventional round cable and D-connectors at both ends.Remove the protective cover to reveal the D-connector on the power unit. Connect the one end ofthe communication cable to the D-connector of the power unit and the other end to the control unit.If the Optical Cable Adapter Board (see below) sits on the D-connector of the control unit you haveto remove it first. See Figure 55 below.Figure 55.X10 +24 V supply voltage to control board WL Connect to WL on Phase W driver boardX3 Connect to terminal X1 on phase U driverboard Terminal X2 on Phase driver boardX4 Connect to terminal X1 on phase V driverboard X2 Internal fan power connectionX5 Connect to terminal X1 on phase Wdriver boardTerminals on ASIC board Gate driver signals from ASIC to driverboardD-connectorOpticalterminals11372_uk
