3.1 Main Circuit Wiring3-33 Wiring and Connection3.1.1 Names and Functions of Main Circuit TerminalsNames, functions and specifications are shown in the following table.Name Terminal Symbols Model SGDV- DescriptionMain circuit inputterminalsL1, L2 F Single-phase 100 to 115 V,+10% to -15% (50/60 Hz)L1, L2, L3A Three-phase 200 to 230 V,+10% to -15% (50/60 Hz)D Three-phase 380 to 480 V,+10% to -15% (50/60 Hz)Control power inputterminalsL1C, L2CF Single-phase 100 to 115 V,+10% to -15% (50/60 Hz)A Single-phase 200 to 230 V,+10% to -15% (50/60 Hz)24V, 0V D 24 VDC, ±15%External regenerativeresistor terminalsB1/ , B2,orB1, B2R70F, R90F, 2R1F, 2R8F,R70A, R90A, 1R6A, 2R8AIf the regenerative capacity is insufficient,connect an external regenerative resistor(option) between B1/ and B2.3R8A, 5R5A, 7R6A, 120A,180A, 200A, 330A, 1R9D,3R5D, 5R4D, 8R4D, 120D,170DIf the internal regenerative resistor isinsufficient, remove the wire between B2and B3 and connect an external regenera-tive resistor (option) between B1/ andB2, or B1 and B2.DC reactorconnection terminalfor power supplyharmonicsuppression1, 2FADNormally short 1 and 2.If a countermeasure against power supplyharmonic waves is needed, connect a DCreactor between 1 and 2.Main circuit plusterminal B1/ or B1 AD Use when DC power supply input is used.Main circuit minusterminal 2 ADServomotorconnection terminals U, V, W Use for connecting to the servomotor.Ground terminals(× 2)Use for connecting the power supply ground terminal and servomotorground terminal.: Main terminals