3.3 Main Circuit Connection Diagram 3.3 Main Circuit Connection Diagram Refer to diagrams in this section for the Main Circuit wiring connections. Connections may vary based on drive capacity. The main circuit DC power supply powers the control circuit. NOTICE: Do not use the negative DC bus terminal “-” as a ground terminal. This terminal is at high voltage DC potential. Improper wiring connections could result in damage to the drive. u Single-Phase 200 V Class (JZAB0P1 ~ B1P5) DC reactor (option) Braking Resistor Unit (option) Jumper +1 +2 B1 B2 R/L1 Drive U/T1 V/T2 W/T3 Motor Single-phase 200 Vac – S/L2 Figure 3.3 Connecting Single-Phase Main Circuit Terminals NOTICE:
Do not connect T/L3 terminal when using single-phase power supply input. Incorrect wiring may damage the drive. u Three-Phase 200 V Class (JZA20P1 ~ 24P0); Three-Phase 400 V Class (JZA40P2 ~ 44P0) DC reactor (option) Braking Resistor Unit (option) Jumper +1 +2 B1 B2 R/L1 S/L2 T/L3 Drive U/T1 V/T2 W/T3 Motor Three phase 200 Vac (400 Vac) — Figure 3.4 Connecting Three-Phase Main Circuit Terminals 34 SIEP C710606 33A OYMC AC Drive – J1000 User Manual