A90 series Inverter User Guide Wiring ： Danger 1.Wiring must be performed by authorized and qualified personnel so as to avoid unexpected accidents. 2.Between the inverter and the power supply must be separated from the circuit breaker (recommended to use greater or equal to and the nearest 2 times the rated current specifications), or it may fire! 3.Please confirm the power before the line is disconnected (zero energy) state, do not live for wiring work, or there is the risk of electric shock! 4.Never connect input power supply cable to output terminals (U, V ,W)of inverter. Pay attention to terminal symbols and connect to the terminals correctly.
Otherwise it will cause damage to the inverter, and even cause a fire! 5. Please follow the standard on the inverter for the correct and reliable grounding, otherwise there will be the risk of electric shock! Caution 1.Connect the inverter output terminals U, V, and W to the motor input terminals U, V and W, respectively. Phase sequence inconsistency can cause the motor to reverse. 2.Be sure that wiring meets EMC requirements and local safety standards. Cable should be in recommended sizes so as to prevent accident risk. 3.Must not be directly connected brake resistor to DC bus terminals + and – so as to prevent fire risk.will cause a fire!
4.Tighten terminals with a screwdriver of specified torque so as to prevent fire risk. 5.Do not connect a phase-shifting capacitor or an LC/RC noise filter to output circuits. 6.Do not connect the electromagnetic switch, electromagnetic contactor to the output circuit, otherwise the inverter over-current protection circuit action, serious, will lead to internal damage to the inverter. 7.Do not disconnect internal cable of inverter, or else this can possibly damage the internal parts of inverter. Before Power-on: 1.Please confirm whether the input power supply voltage level and inverter rated voltage level, otherwise it will lead to equipment damage or cause a fire; 2.
Confirm the power input terminal (R, S, T), and the output terminals (U, V, W) on the connection position is correct; 3. Pay attention to check with the inverter connected to the external circuit is short-circuit phenomenon, the connection line is fastened, otherwise it will cause the inverter damage! Danger Caution 1.The front cover of inverter must be closed before inverter is powered on. Otherwise, it may result in an electric shock. 2.The wiring of all peripherals must be conducted in accordance with the guidance of this guide. Otherwise, it may result in an electric hazard. 3