User Manual of A90 Series Inverter Iron box Metal tube MCCB Noise filter Noise filter IM Fig. 3-9 Solution to RF Interference 3.2.5.9 Wiring distance between inverter and motor The longer the wiring distance between the inverter and motor, the higher the carrier frequency and the higher harmonic leakage current in the cable. This will adversely affect the inverter and nearby devices. Refer to Table 3 to adjust the carrier frequency and reduce the high-frequency leakage current. When the motor wiring distance exceeds 50 m, connect the output terminals (U, V, W) of the inverter with the dedicated AC reactor (phase capacity: the same as that of the inverter) for inverter output.
Table 3-2 Wiring Distance and Carrier Frequency between Inverter and Motor 3.2.6 Cable and screw dimensions of main circuit The cable and screw dimensions of the main circuit are shown in Table 3-3. Table 3-3 Cable Dimensions and Terminal Screw Specifications 35 Inverter Wiring distance between inverter and >100m motor Carrier frequency Below 10kHz Below 8kHz Below 5kHz Function code F00.23 10.0 8.0 5.0 Frequency Wire diameter Wire type Terminal Tightening converter Terminal Symbol (mm²) screw Torque (N.m) model A90-2T2R8B PB, +, -, R, S, T, U, V, W M3 0.5~0.7 1.5 A90-2T4R8B A90-4T1R5B A90-4T2R5B A90-4T4R2B A90-2T8R0B M4 1.5~2.0 A90-2T010B 4 A90-4T5R6B A90-4T9R4B