Connection example with the FR-BR-(H) resistor unit OFF ON 1 MC T *2 MC 2 FR-BR MCCB MC U Motor 3 PR Three-phase AC power supply R/L1 S/L2 V IM P TH1 *4 T/L3 W *3 TH2 5 Inverter PR FR-BU2 P/+ P/+ A B 5 *1 N/- N/- *1 C BUE SD 6 *1 When wiring, make sure to match the terminal symbol (P/+, N/-) at the inverter side and at the brake unit (FR-BU2) side. (Incorrect connection will damage the inverter and brake unit.) *2 When the power supply is 400 V class, install a stepdown transformer. *3 The wiring distance between the inverter, brake unit (FR-BU2) and resistor unit (FR-BR) must be within 5 m. Even when the cable is twisted, the wiring length must be within 10 m.
*4 The contact between TH1 and TH2 is closed in the normal status and is open at a fault. 10 m or less *3 7 8 9 10 43 2. INSTALLATION AND WIRING 2.8 Connection of stand-alone option units