User Guide of EM730 Series Inverter 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 may be subject to internal damage. 6. Do not dismantle the connecting cable inside the inverter; otherwise, internal damage may be caused to the inverter. Before power-on: Danger 1.
Make sure that the voltage level of the input power supply is consistent with the rated voltage of the 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 may be damaged! 2. The withstand voltage test has been performed to all parts of the inverter, so it is not necessary to carry it out again. Otherwise, an accident may be caused! Warning 1. The inverter must not be powered on until it is properly covered; otherwise, electric shock may be caused! 2.
The wiring of all peripheral accessories must be in line 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! After power-on: Danger 1. Never touch the inverter and surrounding circuits with wet hands; otherwise, electric shock may occur! 2. If the indicator is not ON and the keyboard has no response after power-on, immediately turn off the power supply. Never touch the inverter terminals (R, S, T) and the terminals on the terminal block with your hands or screwdriver; otherwise, electric shock may be caused.
Upon turning off the power supply, contact our customer service personnel. 3. At the beginning of power-on, the inverter automatically performs a safety test to external strong current circuits. Do not touch the inverter terminals (U, V, W) or motor terminals; otherwise, electric shock may be caused! 4. Do not disassemble any parts of the inverter while it is powered on. 4