Chapter 1 Safety-precautions
Manual Warning Sign Definitions
⚡DANGER: Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.
⚠️WARNING: Indicates a potentially hazardous situation which, if not avoided, could result in minor or moderate injury or damage to the equipment.
❗CAUTION: Indicates a potentially hazardous situation which, if not avoided, could result in incorrect operation or unsafe use of the equipment.
⭕ If the variable frequency drive is damaged, exposed to water, or has missing parts, it should not be installed or operated. Otherwise, it may lead to equipment damage or personal injury.
⭕ When installing or moving, please support the bottom of the product and avoid holding only the casing to prevent injury or damage to the variable frequency drive.
⭕ Keep the variable frequency drive away from flammable or explosive objects, and install it on fire-resistant materials such as metal.
⭕ When installing the variable frequency drive in an electrical cabinet or other enclosed space, ensure proper ventilation by installing fans or other cooling devices and setting up vents inside the cabinet to keep the ambient temperature below 40°C. Otherwise, the variable frequency drive may be damaged due to high ambient temperatures.
⭕ Before wiring, verify that the rated voltage and phase of the variable frequency drive match the input power supply voltage and phase to avoid fire or personal injury.
⭕ Do not connect the AC input power to the output terminals U, V, W of the variable frequency drive, as it will damage the drive and void the warranty.
⭕ Do not perform withstand voltage tests on the variable frequency drive, as it will damage the drive.
⭕ The wiring of the main circuit terminals and control circuit terminals of the variable frequency drive should be separated or vertically crossed, otherwise it may cause interference to the control signals.
⭕ Use cable lugs with insulated sleeves for connecting cables to the main circuit terminals.
⭕ When the cable length between the variable frequency drive and the motor exceeds 50 meters, it is recommended to use output reactors to protect the drive and motor.
⭕ Do not use circuit breakers to control the start and stop of the variable frequency drive, as it may damage the drive.
⭕ Due to the short acceleration time of the motor speed from low to high during operation, please ensure that the motor and mechanical equipment are within the allowable range before operation to prevent equipment damage.
⭕ The heat sink and braking resistor may have high temperatures. Do not touch them to avoid burns.
⭕ The default parameters set at the factory for the variable frequency drive meet the requirements of most equipment operations. Avoid modifying the drive parameters arbitrarily unless absolutely necessary. Even for equipment with special requirements, only modify the necessary parameters. Otherwise, it may lead to equipment damage.
⭕ Ensure that the power is disconnected before starting the wiring, otherwise there is a risk of electric shock or fire.
⭕ The grounding terminal must be reliably grounded, otherwise there is a risk of electric shock from the variable frequency drive enclosure.
⭕ Do not touch the main circuit terminals, and ensure that the main circuit terminals of the variable frequency drive are not in contact with the enclosure to avoid electric shock.
⭕ Do not connect any terminals other than the (+) and (PB) terminals of the braking resistor, as it may cause a fire.
⭕ Only power up the variable frequency drive after completing the wiring and installing the cover plate. Do not remove the cover plate while the drive is powered, as it may cause electric shock.
⭕ When the fault auto-reset or power-off auto-restart function is set on the variable frequency drive, safety protection measures for the equipment system should be taken in advance to prevent personnel injury.
⭕ The “Run/Stop” button may be disabled due to certain function settings. Install an independent emergency power-off switch in the variable frequency drive control system to avoid personnel injury.
⭕ Even when the variable frequency drive is in a stopped state, the terminals of the drive remain live after powering up and should not be touched to prevent electric shock.
⭕ Do not touch the terminals of the variable frequency drive when it is powered up, as it may cause electric shock.
⭕ Maintenance, inspection, or component replacement work should only be performed by qualified electrical engineers.
⭕ After power-off, wait for at least 10 minutes or ensure there is no residual voltage before performing maintenance and inspection to prevent personnel injury.
⭕ Unauthorized modification of the variable frequency drive is strictly prohibited, as it may result in injury or death. Any unauthorized modifications will void the warranty service for the drive.
⭕ There are CMOS integrated circuits on the PCB board. Please do not touch them with your hands, as static electricity may damage the PCB board.
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