130BB256.10Illustration 7.47 Top Connection for Fieldbus NEMA 1 UnitsInstallation of 24 V external DC SupplyTorque: 0.5 - 0.6 Nm (5 in-lbs)Screw size: M3No. Function35 (-), 36 (+) 24 V external DC supplyTable 7.37 24 V External DC Supply24 V DC external supply can be used as low-voltage supplyto the control card and any option cards installed. Thisenables full operation of the LCP (including parametersetting) without connection to mains. Note that a warningof low voltage will be given when 24 VDC has beenconnected; however, there will be no tripping.WARNINGUse 24 VDC supply of type PELV to ensure correct galvanicisolation (type PELV) on the control terminals of thefrequency converter.7.5.3 Control TerminalsControl Terminals, FC 301Drawing reference numbers:1. 8 pole plug digital I/O.2. 3 pole plug RS-485 Bus.3. 6 pole analog I/O.4. USB Connection.Control Terminals, FC 302Drawing reference numbers:1. 10 pole plug digital I/O.2. 3 pole plug RS-485 Bus.3. 6 pole analog I/O.4. USB Connection.1423130BA012.1161 68 6939 42 50 53 54 5512 13 18 19 27 29 32 33 20 37Illustration 7.48 Control terminals (all frame sizes)7.5.4 Switches S201, S202, and S801Switches S201 (A53) and S202 (A54) are used to select acurrent (0-20 mA) or a voltage (-10 to 10 V) configurationof the analog input terminals 53 and 54 respectively.Switch S801 (BUS TER.) can be used to enable terminationon the RS-485 port (terminals 68 and 69).See Illustration 7.55.Default setting:S201 (A53) = OFF (voltage input)S202 (A54) = OFF (voltage input)S801 (Bus termination) = OFFElectrical Installation VLT® AutomationDrive FC 300 Design Guide, 0.25-75 kWMG33BE02 - VLT® is a registered Danfoss trademark 1377 7RSPSupply - 1-888-532-2706 - www.RSPSupply.comhttp://www.RSPSupply.com/p-21462-Danfoss-131B8966-VLT-Automation-VT-Drive-VFD-FC301-230V-5-HP.aspx
