KE300A Inverter Safety and Precautions
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electric shock.
Caution
If parameter identification is required, due attention should be paid to the danger
of injury arising from the rotating motor. Otherwise accident may occur!
Do not change the factory settings at will. Otherwise it may damage the
equipment!
1.1.6 During Operation:
Danger
Do not touch the fan or discharge resistor to sense the temperature. Otherwise,
you may get burnt!
Detection of signals during the operation should only be conducted by qualified
technician. Otherwise, personal injury or equipment damage may be caused!
Caution
During the operation of the inverter, keep items from falling into the equipment.
Otherwise, it may damage the equipment!
Do not start and shut down the inverter by connecting and disconnecting the
contactor. Otherwise, it may damage the equipment!
1.1.7 During Maintain:
Danger
Do not repair and maintain the equipment with power connection. Otherwise there
will be danger of electric shock!
Be sure to conduct repair and maintenance after the charge LED indicator of the
inverter is OFF. Otherwise, the residual charge on the capacitor may cause
personal injury!
The inverter should be repaired and maintained only by the qualified person who
has received professional training. Otherwise, it may cause personal injury or
equipment damage!
Carry out parameter setting after replacing the inverter, all the plug-ins must be
plug and play when power outage.
1.2 Precautions
1.2.1 Motor Insulation Inspection
When the motor is used for the first time, or when the motor is reused after being kept, or when periodical
inspection is performed, it should conduct motor insulation inspection so as to avoid damaging the inverter
because of the insulation failure of the motor windings. The motor wires must be disconnected from the
inverter during the insulation inspection. It is recommended to use the 500V megameter, and the insulating
resistance measured should be at le
ast 5MΩ.
1.2.2 Thermal Protection of the Motor
If the ratings of the motor does not match those of the inverter, especially when the rated power of the
inverter is higher than the rated power of the motor, the relevant motor protection parameters in the in the
inverter should be adjusted, or thermal relay should be mounted to protect the motor.
