EM630/TC6A Closed-Loop Vector Hoist Inverter User Manual 3.2 Wiring Main Circuit Terminals 3.2.1 Main Circuit Terminal Block The main circuit terminals of EM630 comprise the following parts: 3-phase AC input terminals: R, S and T Grounding terminal: DC bus terminal: 、 Wiring terminal for energy consumption braking resistor: PB Wiring terminals of motor: U, V and W See Figure 3–2 for main circuit terminal block. W V U _ + PB T S R a) Main Circuit Terminal Block of Models (4.0 - 7.5 kW) W V U _ + PB T S R b) Main Circuit Terminal Block of Models (11 - 18.5 kW) c) Main Circuit Terminal Block of Models (22 – 37 kW) 28 R S T PB + - U V W