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-phase rectification. Refer to 12-Phase Rectification on page 47 fordetails.u 12-Phase Rectificationn Removing the JumperModels 4A0930 and 4A1200 are compatible for operation with 12-phase rectification. Operation with 12-phase 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-phaserectification 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-phase rectification.R1/L11JumperR/L1S/L2T/L3T1/L31S1/L21Figure 3.7 Removing the Jumper3.2 Main Circuit Connection DiagramYASKAWA ELECTRIC TOEP YAIP1U 01B YASKAWA AC Drive - P1000 Quick Start Guide 473 Electrical Installation
