2-2 Wiring Wiring to the Power Supply and Motor (Example) 3G3JX-A2004 Main circuit terminal block (input side) (Example) 3G3JX-A2037 Main circuit terminal block (input side) 2 Design Main circuit terminal block (output side) Power supply Ground Power supply Ground Main circuit terminal block (output side) N/- P/+2 +1 U/T1 V/T2 W/T3 Motor earth Motor earth Motor Motor •Do not connect the power supply other than to R/L1, S/L2, or T/L3. •Do not remove the short-circuit bar between P/+2 and +1, except when a DC reactor is connected. Note 1: Install an earth leakage breaker on the power supply input side.
(Select an earth leakage breaker having a larger high-frequency sensed current and avoid unnecessary operation.) If the wiring between the Inverter and the motor is too long (longer than 10 m), the thermal relay may malfunction due to harmonics. Install an AC reactor on the Inverter output side, or use a current sensor instead of the thermal relay. 2-9 S/L2 T/L3 S/L2 T/L3 U/T1 V/T 2W/T3 N/- P/+2 +1