User Manual of EM760 High-Performance Inverter During wiring: Δ Danger 1. Follow the instructions in this manual, and appoint professional and electrical engineering personnel to complete wiring; otherwise, unexpected dangers maybe caused! 2. The inverter and power supply must be separated by a circuit breaker (recommendation: greater than or equal to and closest to twice the rated current); otherwise, a fire maybe caused! 3. Before wiring,make sure that the power supply is in the zero energy status; otherwise, electric shock maybe caused! 4. Never connect the input power supply to the output terminals (U, V, W) of the inverter.
Pay attention to the marks ofwiring terminals, and connect wires correctly! Otherwise, the inverter maybe damaged! 5. Make the inverter grounded correctly and reliably according to the standards; otherwise, electric shock and fire maybe caused! Attention 1. Make sure that the lines meet the EMC requirements and local safety standards. For wire diameters, refer to the recommendations. Otherwise, an accident may occur! 2. Never connect the braking resistor directly between the DC bus and terminal. Otherwise, a fire may be caused! 3. Tighten the terminals with a screwdriver of specified torque; otherwise, there is a risk of fire. 4.
Never connect the phase-shifting capacitor and LC/RC noise filter to the output circuit. 5. Do not connect the electromagnetic switch and electromagnetic contactor to the output circuit. Otherwise, the overcurrent protection circuit of the inverter will be enabled. In severe cases, the inverter maybe subject to internal damage. 6. Do not dismantle the connecting cable inside the inverter; otherwise, internal damage maybe caused to the inverter. Before power-on: Δ Danger 1. Make sure that the voltage level ofthe input power supply is consistent with the rated voltage ofthe inverter; and the input terminals (R, S, T) and output terminals (U, V, W) of the power supply are connected correctly.
Check whether there is short circuit in the peripheral circuits connected to the inverter and whether all connecting lines are tightened; otherwise, the inverter maybe damaged! The withstand voltage test has been performed to all parts ofthe inverter, so it is not necessary to carry it out again. Otherwise, an accident maybe caused! 2. Attention 1. 2. The inverter must not be powered on until it is properly covered; otherwise, electric shock maybe caused! The wiring of all peripheral accessories must be inline with the instructions in this manual. All wires should be connected correctly according to the circuit connections in this manual. Otherwise, an accident may occur! 4