PowerFlex 750-Series AC Drives User Manual

1-18 Installation/WiringTerminal Description Notes+DC DC Bus (+) DC Input Power or Dynamic Brake Chopper-DC DC Bus (–) DC Input Power or Dynamic Brake ChopperBR1 DC Brake (+) Dynamic Brake Resistor Connection (+)BR2 DC Brake (–) Dynamic Brake Resistor Connection (–)U U (T1) Motor Connections (1)V V (T2)W W (T3)R R (L1) AC Line Input PowerS S (L2)T T (L3)PE / PE Ground Terminating point to chassis ground for incoming AC lineand motor shield.(1) Important: Motors with NEMA MG1 Part 31.40.4.2 inverter grade insulation systems are recommended. If youintend to connect a motor that is not rated inverter grade, refer to Wiring and Grounding Guidelines for PulseWidth Modulated (PWM) AC Drives, publication DRIVES-IN001 for recommendations.Common Bus Power WiringFigure 1.10 Common Bus Terminal Block Location and Termination Points➍➎➌➋➋➊Frame 5Table 1.H Frame 5 Common BusNo. Name Description➊ Power Terminal Connections +DC, -DC, U/T1, V/T2, W/T3➋ PE Grounding Studs Terminating point to chassis ground for incoming DC line andmotor shields.➌ PE-B CMC Jumper Screw➍ Optional NEMA/UL Type 1 Terminating point to chassis ground for incoming AC line,Conduit Boxmotor shields, and control wire shields.➎ Optional EMC Plate Terminating point to chassis ground for incoming AC line,motor shields, and control wire shields.PowerFlex 750-Series User Manual – Publication 750-UM001C-EN-P – September 2009