Cable gauge: 0.75 to 2 mm 2 Tightening torque: 1.5 N·m 1 Connection method Connection diagram If a fault occurs and the electromagnetic contactor (MC) installed at the inverter's Inverter MC input line is opened, power supply to the control circuit is also stopped and the fault 2 R/L1 signals cannot be output anymore. Terminals R1/L11 and S1/L21 of the control S/L2 T/L3 circuit are provided to keep outputting the fault signals in such a case. Follow the following steps to wire terminals R1/L11 and S1/L21 on the inverter to the power 3 R1/L11 input lines of the MC. Do not connect the power cable to incorrect terminals. Doing S1/L21 so may damage the inverter.
4 Remove the jumper FR-A820-00250(3.7K) or lower, FR-A840-00126(3.7K) or lower 5 (c) S/L2 R/L1 6 (a) T/L3 (b) 7 R1/L11 (d) S1/L21 8 (a) Remove the upper screws. (b) Remove the lower screws. (c) Remove the jumper. (d) Connect the separate power cable for the control circuit to the lower terminals (R1/L11, S1/L21). Main circuit terminal block 9 FR-A820-00340(5.5K) to FR-A820-00630(11K), FR-A840-00170(5.5K) to FR-A840-00380(15K) 10 (c) S1/L21 R1/L11 (a) (b) (d) R/L1 Main circuit terminal block T/L3 S/L2 (a) Remove the upper screws. (b) Remove the lower screws. (c) Remove the jumper. (d) Connect the separate power cable for the control circuit to the upper terminals (R1/L11, S1/L21). 79 2.
INSTALLATION AND WIRING 2.6 Control circuit