8.1.2 Adjustable Frequency Drive HardwareSet-upUse the terminator dip switch on the main control boardof the adjustable frequency drive to terminate theRS-485 bus.1 2S801ON130BA272.11Figure 8.3 Terminator Switch Factory SettingThe factory setting for the dip switch is OFF.8.1.3 Adjustable Frequency DriveParameter Settings for ModbusCommunicationThe following parameters apply to the RS-485 interface(FC port):Parameter Function8-30 Protocol Select the application protocol to run onthe RS-485 interface8-31 Address Set the node address. Note: The addressrange depends on the protocol selected in8-30 Protocol8-32 Baud Rate Set the baud rate. Note: The default baudrate depends on the protocol selected in8-30 Protocol8-33 Parity / StopBitsSet the parity and number of stop bits.Note: The default selection depends on theprotocol selected in 8-30 Protocol8-35 MinimumResponse DelaySpecify a minimum delay time betweenreceiving a request and transmitting aresponse. This can be used for overcomingmodem turnaround delays8-36 MaximumResponse DelaySpecify a maximum delay time betweentransmitting a request and receiving aresponse8-37 MaximumInter-Char DelaySpecify a maximum delay time betweentwo received bytes to ensure timeout iftransmission is interruptedTable 8.2 Parameters Apply to the RS-485 Interface (FC port)Installation and Set-up Design Guide146 Danfoss A/S © Rev. 06/2014 All rights reserved. MG11BC2288
