FC 300 Design GuideHow to InstallThe electronic thermal relay (ETR) of the adjustable frequency drive cannot be used as motor protection foran individual motor in systems with parallel-connected motors. Provide further motor protection by, e.g.,thermistors in each motor or individual thermal relays. (Circuit breakers are not suitable as protection)." Direction of Motor RotationThe default setting is clockwise rotationwith the adjustable frequency drive outputconnected as follows.Terminal 96 connected to U-phaseTerminal 97 connected to V-phaseTerminal 98 connected to W-phaseThe direction of motor rotation is changed byswitching two motor phases." Installation of Brake Cable(Only for adjustable frequency drives ordered with brake chopper option).The connection cable to the brake resistor must be shielded.1. Connect the shield by means of cableclamps to the conductive back plate on theadjustable frequency drive and to the metalcabinet of the brake resistor.2. Size the brake cable cross-section tomatch the brake torque.No. Function81, 82 Brake resistor terminalsSee Brake instructions, MI.90.FX.YY and MI.50.SX.YY for more information about safe installation.NOTEVoltages up to 960 V DC, depending on the supply voltage, may occur on the terminals.117MG.33.B6.22 - VLT is a registered Danfoss trademark
