Safety precautions of Variable frequency drive

Security Level

|Before installation| ◆ Do not install the control system when it is found that water, parts are missing or parts are damaged when unpacking!

◆ If the packing list does not match the actual name, please do not install it!

attention|It should be lifted and handled gently during transportation, otherwise there is danger of damage to the equipment!

Do not use the damaged drive or the missing inverter. Risk of injury!

Do not touch the components of the control system with your hands, otherwise there is a danger of electrostatic damage!| |During installation|

◆ Please install on flame retardant objects such as metal; keep away from combustibles. Otherwise it may cause a fire!

◆ Do not loosen the fixing bolts of the equipment components, especially those with red markings!

attention|◆ Do not drop the wire lead or screw into the inverter. Otherwise it will cause damage to the inverter!

◆ Install the inverter in a place where there is less vibration and direct sunlight.

◆ When two or more inverters are placed in the same cabinet, please pay attention to the installation position to ensure the heat dissipation effect.

Danger|◆ Must be constructed by professional electrical engineers, otherwise there will be unexpected dangers!

◆ There must be a circuit breaker between the inverter and the power supply, otherwise a fire may occur!

◆ Please confirm that the power supply is in zero energy state before wiring, otherwise there is danger of electric shock!

◆ Please correctly ground the inverter according to the standard, otherwise there is danger of electric shock!|

attention|◆ Never connect the input power to the output terminals (U, V, W) of the inverter. Pay attention to the marking of the terminal block, do not connect the wrong line! Otherwise the drive is damaged!

◆ Never connect the braking resistor directly between the DC bus (+) and (-) terminals. Otherwise it will cause a fire!

◆ Please refer to the manual for the wire diameter used. Otherwise an accident may occur!

◆ The encoder must use shielded wires, and the shield must ensure reliable grounding at one end!| |Before powering up| Danger|◆ Please confirm whether the voltage level of the input power supply is consistent with the rated voltage level of the inverter; whether the wiring positions on the power input terminals (R, S, T) and output terminals (U, V, W) are correct; and pay attention to check and frequency conversion. Whether there is a short circuit in the peripheral circuit connected to the device, and whether the connected circuit is tight, otherwise the inverter will be damaged!

◆ No part of the inverter is required to withstand voltage test. The product has been tested at the factory. Otherwise it may cause an accident!|

attention|◆ The inverter must be covered before it can be powered on. Failure to do so may result in electric shock!

◆ All peripheral accessories must be wired in accordance with the instructions in this manual and wired in accordance with the circuit connections provided in this manual. Otherwise it will cause an accident!| |After power-on| Danger|◆ Do not open the cover after powering on. Otherwise there is a danger of electric shock!

◆ Do not touch any input/output terminals of the inverter. Otherwise there is danger of electric shock!|

attention|◆ If parameter identification is required, please pay attention to the danger of injury during motor rotation. Otherwise it may cause an accident!

◆ Do not change the inverter manufacturer parameters at will. Failure to do so may result in damage to the equipment!| |Running|! Danger|◆ Non-professional technicians should not detect signals during operation. Failure to do so may result in personal injury or equipment damage!

◆ Do not touch the cooling fan and discharge resistor to test the temperature. Otherwise it may cause burns!|

attention|◆ When the inverter is running, you should avoid something falling into the device. Otherwise it will cause equipment damage!

◆ Do not use the contactor on/off method to control the start and stop of the inverter. Otherwise it will cause equipment damage!| |Maintenance time|![|29x28] Danger|◆ Do not perform maintenance and maintenance on the inverter without professional training. Failure to do so may result in personal injury or equipment damage!

◆ Do not repair or maintain the equipment with electricity. Otherwise there is danger of electric shock!

◆ Make sure that the drive’s input power is turned off for 10 minutes before the drive can be serviced and repaired. Otherwise the residual charge on the capacitor will cause harm to people!

◆ Before performing maintenance work on the inverter, make sure that the inverter is safely disconnected from all power sources.

◆ All pluggable plug-ins must be plugged and unplugged in case of power failure!

◆ The parameters must be set and checked after replacing the inverter.|

attention|◆ The rotating motor feeds the inverter so that the drive is energized even when the motor is stopped and the power is turned off. Before performing maintenance work on the inverter, make sure that the motor is safely disconnected from the inverter.|