u Three-Phase 400 V Class Models 4A0930, 4A1200+1–R/L1S/L2T/L3R1/L11S1/L21T1/L31U/T1V/T2W/T3+3+24 VPowerSupplyDC linkchokeRelayGate board Controlboard OperatorCurrentsensorFigure 3.6 Connecting Main Circuit TerminalsNote: Models 4A0930 and 4A1200 are compatible for operation with 12-pulse rectification. Refer to 12-Pulse Rectification on page 73 fordetails.u 12-Pulse Rectificationn Removing the JumperModels 4A0930 and 4A1200 are compatible for operation with 12-pulse rectification. Operation with 12-pulse rectificationrequires the user to separately prepare a 3-winding transformer for the power supply. Contact Yaskawa or your nearest salesrepresentative for transformer specifications.WARNING! Fire Hazard. Failure to remove jumpers shorting the power supply terminals on the main circuit when operating with 12-pulserectification may cause death or serious injury by fire.n Application NotesModels 4A0930 and 4A1200 are shipped from the factory with jumpers short-circuiting terminals R/L1-R1/L11, S/L2-S1/L21, and T/L3-T1/L31.Remove M5 screws and jumpers as shown in Figure 3.7 to operate with 12-pulse rectification.R1/L11JumperR/L1S/L2T/L3T1/L31S1/L21Figure 3.7 Removing the Jumper3.3 Main Circuit Connection DiagramYASKAWA SIEP YAIP1U 01C AC Drive - P1000 Technical Manual 733 Electrical Installation
